/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_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:59:26,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:59:26,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:59:26,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:59:26,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:59:26,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:59:26,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:59:26,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:59:26,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:59:26,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:59:26,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:59:26,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:59:26,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:59:26,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:59:26,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:59:26,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:59:26,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:59:26,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:59:26,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:59:26,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:59:26,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:59:26,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:59:26,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:59:26,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:59:26,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:59:26,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:59:26,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:59:26,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:59:26,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:59:26,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:59:26,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:59:26,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:59:26,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:59:26,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:59:26,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:59:26,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:59:26,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:59:26,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:59:26,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:59:26,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:59:26,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:59:26,386 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 07:59:26,452 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:59:26,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:59:26,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:59:26,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:59:26,458 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:59:26,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:59:26,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:59:26,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:59:26,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:59:26,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:59:26,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:59:26,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:59:26,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:59:26,460 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:59:26,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:59:26,461 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:59:26,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:59:26,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:59:26,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:59:26,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:59:26,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:59:26,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:59:26,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:59:26,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:59:26,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:59:26,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:59:26,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:59:26,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:59:26,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:59:26,463 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:59:26,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:59:27,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:59:27,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:59:27,019 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:59:27,020 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:59:27,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label17.c [2020-10-29 07:59:27,116 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc4b02dd3/5e29b027e12d434fb09e411b88bc0a99/FLAG8812bc95c [2020-10-29 07:59:28,078 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:59:28,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label17.c [2020-10-29 07:59:28,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc4b02dd3/5e29b027e12d434fb09e411b88bc0a99/FLAG8812bc95c [2020-10-29 07:59:28,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc4b02dd3/5e29b027e12d434fb09e411b88bc0a99 [2020-10-29 07:59:28,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:59:28,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:59:28,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:59:28,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:59:28,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:59:28,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:59:28" (1/1) ... [2020-10-29 07:59:28,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc40e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:28, skipping insertion in model container [2020-10-29 07:59:28,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:59:28" (1/1) ... [2020-10-29 07:59:28,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:59:28,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:59:29,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:59:29,106 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:59:29,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:59:29,318 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:59:29,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:29 WrapperNode [2020-10-29 07:59:29,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:59:29,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:59:29,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:59:29,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:59:29,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:29" (1/1) ... [2020-10-29 07:59:29,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:29" (1/1) ... [2020-10-29 07:59:29,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:29" (1/1) ... [2020-10-29 07:59:29,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:29" (1/1) ... [2020-10-29 07:59:29,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:29" (1/1) ... [2020-10-29 07:59:29,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:29" (1/1) ... [2020-10-29 07:59:29,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:29" (1/1) ... [2020-10-29 07:59:29,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:59:29,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:59:29,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:59:29,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:59:29,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:29" (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 07:59:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:59:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:59:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:59:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:59:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 07:59:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:59:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:59:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 07:59:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:59:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:59:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:59:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:59:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:59:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:59:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:59:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:59:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:59:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:59:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:59:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:59:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:59:32,223 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:59:32,223 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:59:32,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:59:32 BoogieIcfgContainer [2020-10-29 07:59:32,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:59:32,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:59:32,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:59:32,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:59:32,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:59:28" (1/3) ... [2020-10-29 07:59:32,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f10ec4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:59:32, skipping insertion in model container [2020-10-29 07:59:32,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:29" (2/3) ... [2020-10-29 07:59:32,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f10ec4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:59:32, skipping insertion in model container [2020-10-29 07:59:32,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:59:32" (3/3) ... [2020-10-29 07:59:32,238 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label17.c [2020-10-29 07:59:32,251 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:59:32,258 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:59:32,273 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:59:32,307 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:59:32,307 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:59:32,307 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:59:32,307 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:59:32,307 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:59:32,307 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:59:32,308 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:59:32,308 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:59:32,337 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 07:59:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-29 07:59:32,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:32,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:59:32,349 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:32,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:32,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1408148900, now seen corresponding path program 1 times [2020-10-29 07:59:32,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:32,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575531163] [2020-10-29 07:59:32,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:32,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:33,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:33,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 07:59:33,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:33,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-10-29 07:59:33,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:33,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:33,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:59:33,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:33,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 07:59:33,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:59:33,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:33,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:33,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:33,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:33,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:33,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 07:59:33,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:33,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:33,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:33,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:33,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:33,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:59:33,516 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 07:59:33,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575531163] [2020-10-29 07:59:33,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:59:33,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 07:59:33,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390992696] [2020-10-29 07:59:33,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:59:33,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:33,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:59:33,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:59:33,552 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 5 states. [2020-10-29 07:59:40,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:40,040 INFO L93 Difference]: Finished difference Result 1520 states and 2853 transitions. [2020-10-29 07:59:40,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:59:40,043 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-10-29 07:59:40,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:40,078 INFO L225 Difference]: With dead ends: 1520 [2020-10-29 07:59:40,078 INFO L226 Difference]: Without dead ends: 1039 [2020-10-29 07:59:40,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-10-29 07:59:40,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1032. [2020-10-29 07:59:40,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2020-10-29 07:59:40,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1630 transitions. [2020-10-29 07:59:40,238 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1630 transitions. Word has length 65 [2020-10-29 07:59:40,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:40,241 INFO L481 AbstractCegarLoop]: Abstraction has 1032 states and 1630 transitions. [2020-10-29 07:59:40,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:59:40,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1630 transitions. [2020-10-29 07:59:40,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-29 07:59:40,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:40,259 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 07:59:40,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:59:40,260 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:40,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:40,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1438680043, now seen corresponding path program 1 times [2020-10-29 07:59:40,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:40,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061711522] [2020-10-29 07:59:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:40,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:40,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:41,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:41,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-29 07:59:41,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:41,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-10-29 07:59:41,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:41,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:41,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:41,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-29 07:59:41,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 07:59:41,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:41,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:41,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:41,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:41,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:41,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:41,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 07:59:41,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:41,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:41,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:41,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:41,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:41,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:41,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:41,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:41,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:41,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 07:59:41,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:41,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 07:59:41,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:41,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:41,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:41,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:41,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 07:59:41,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:41,924 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:59:41,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061711522] [2020-10-29 07:59:41,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:41,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 07:59:41,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039923393] [2020-10-29 07:59:41,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:59:41,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:41,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:59:41,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:59:41,930 INFO L87 Difference]: Start difference. First operand 1032 states and 1630 transitions. Second operand 5 states. [2020-10-29 07:59:46,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:46,493 INFO L93 Difference]: Finished difference Result 3091 states and 4933 transitions. [2020-10-29 07:59:46,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:59:46,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-10-29 07:59:46,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:46,516 INFO L225 Difference]: With dead ends: 3091 [2020-10-29 07:59:46,516 INFO L226 Difference]: Without dead ends: 2065 [2020-10-29 07:59:46,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:59:46,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2020-10-29 07:59:46,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 2061. [2020-10-29 07:59:46,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2061 states. [2020-10-29 07:59:46,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2061 states to 2061 states and 2868 transitions. [2020-10-29 07:59:46,619 INFO L78 Accepts]: Start accepts. Automaton has 2061 states and 2868 transitions. Word has length 140 [2020-10-29 07:59:46,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:46,622 INFO L481 AbstractCegarLoop]: Abstraction has 2061 states and 2868 transitions. [2020-10-29 07:59:46,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:59:46,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2061 states and 2868 transitions. [2020-10-29 07:59:46,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-29 07:59:46,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:46,630 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:59:46,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:59:46,631 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:46,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:46,632 INFO L82 PathProgramCache]: Analyzing trace with hash -167280212, now seen corresponding path program 1 times [2020-10-29 07:59:46,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:46,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853046234] [2020-10-29 07:59:46,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:46,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:46,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:46,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:47,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:49,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:51,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:51,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-29 07:59:51,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:59:51,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 07:59:51,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:51,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:51,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:59:51,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:59:51,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 07:59:51,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:51,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:51,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:51,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:51,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:51,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:59:51,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:51,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:51,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:51,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:51,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:51,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:51,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:52,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:52,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:52,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:52,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 07:59:52,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:52,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-29 07:59:52,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:52,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:52,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:52,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:52,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:59:52,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:52,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 07:59:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:52,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:52,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:52,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:59:52,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:52,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 07:59:52,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:52,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:52,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:59:52,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:52,470 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 191 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 07:59:52,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853046234] [2020-10-29 07:59:52,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:52,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:59:52,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908165489] [2020-10-29 07:59:52,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:59:52,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:52,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:59:52,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:59:52,476 INFO L87 Difference]: Start difference. First operand 2061 states and 2868 transitions. Second operand 8 states. [2020-10-29 07:59:58,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:58,490 INFO L93 Difference]: Finished difference Result 5515 states and 7862 transitions. [2020-10-29 07:59:58,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:59:58,491 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 239 [2020-10-29 07:59:58,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:58,514 INFO L225 Difference]: With dead ends: 5515 [2020-10-29 07:59:58,514 INFO L226 Difference]: Without dead ends: 3460 [2020-10-29 07:59:58,521 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 07:59:58,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2020-10-29 07:59:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 2762. [2020-10-29 07:59:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2762 states. [2020-10-29 07:59:58,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3843 transitions. [2020-10-29 07:59:58,630 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3843 transitions. Word has length 239 [2020-10-29 07:59:58,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:58,631 INFO L481 AbstractCegarLoop]: Abstraction has 2762 states and 3843 transitions. [2020-10-29 07:59:58,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:59:58,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3843 transitions. [2020-10-29 07:59:58,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-29 07:59:58,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:58,637 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:59:58,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:59:58,638 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:58,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:58,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1374967476, now seen corresponding path program 1 times [2020-10-29 07:59:58,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:58,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321480418] [2020-10-29 07:59:58,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:58,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:58,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:00,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:00,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:03,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:03,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-29 08:00:03,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:03,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-29 08:00:03,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:03,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:00:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:03,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 223 [2020-10-29 08:00:03,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:03,959 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 08:00:03,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:03,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:03,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:03,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:03,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:03,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:00:03,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:03,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:03,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:03,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:03,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:03,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:04,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:00:04,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:04,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-29 08:00:04,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:04,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:04,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 08:00:04,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:04,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:00:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:04,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:04,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-29 08:00:04,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:00:04,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:04,699 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:00:04,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321480418] [2020-10-29 08:00:04,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:04,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:04,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785314529] [2020-10-29 08:00:04,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:04,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:04,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:04,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:04,703 INFO L87 Difference]: Start difference. First operand 2762 states and 3843 transitions. Second operand 7 states. [2020-10-29 08:00:09,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:09,830 INFO L93 Difference]: Finished difference Result 6235 states and 8646 transitions. [2020-10-29 08:00:09,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:00:09,831 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 280 [2020-10-29 08:00:09,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:09,854 INFO L225 Difference]: With dead ends: 6235 [2020-10-29 08:00:09,855 INFO L226 Difference]: Without dead ends: 3479 [2020-10-29 08:00:09,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:00:09,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2020-10-29 08:00:09,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3117. [2020-10-29 08:00:09,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3117 states. [2020-10-29 08:00:09,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 4184 transitions. [2020-10-29 08:00:09,995 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 4184 transitions. Word has length 280 [2020-10-29 08:00:09,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:09,997 INFO L481 AbstractCegarLoop]: Abstraction has 3117 states and 4184 transitions. [2020-10-29 08:00:09,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:09,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 4184 transitions. [2020-10-29 08:00:10,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2020-10-29 08:00:10,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:10,009 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 08:00:10,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:00:10,010 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:10,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:10,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1369978067, now seen corresponding path program 1 times [2020-10-29 08:00:10,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:10,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138574147] [2020-10-29 08:00:10,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:10,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:10,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:10,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:10,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:12,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:15,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 422 [2020-10-29 08:00:15,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:00:15,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 08:00:15,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:15,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:00:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 08:00:15,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:00:15,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:15,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:15,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:15,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:15,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:15,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:00:15,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:15,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:15,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:15,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:15,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:15,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:15,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:00:15,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:15,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:00:15,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:15,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:00:15,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:15,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:00:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:15,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:15,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:00:15,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:15,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-29 08:00:15,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:15,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:00:15,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:15,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 08:00:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:15,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:15,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:15,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:15,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-29 08:00:15,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:15,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:15,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:15,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:15,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:00:15,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 347 proven. 114 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 08:00:16,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138574147] [2020-10-29 08:00:16,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:16,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:00:16,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99230103] [2020-10-29 08:00:16,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:00:16,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:16,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:00:16,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:00:16,187 INFO L87 Difference]: Start difference. First operand 3117 states and 4184 transitions. Second operand 8 states. [2020-10-29 08:00:22,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:22,399 INFO L93 Difference]: Finished difference Result 6618 states and 8834 transitions. [2020-10-29 08:00:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:00:22,407 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 406 [2020-10-29 08:00:22,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:22,423 INFO L225 Difference]: With dead ends: 6618 [2020-10-29 08:00:22,423 INFO L226 Difference]: Without dead ends: 3144 [2020-10-29 08:00:22,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:00:22,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2020-10-29 08:00:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 3124. [2020-10-29 08:00:22,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3124 states. [2020-10-29 08:00:22,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 3385 transitions. [2020-10-29 08:00:22,518 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 3385 transitions. Word has length 406 [2020-10-29 08:00:22,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:22,518 INFO L481 AbstractCegarLoop]: Abstraction has 3124 states and 3385 transitions. [2020-10-29 08:00:22,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:00:22,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 3385 transitions. [2020-10-29 08:00:22,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2020-10-29 08:00:22,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:22,528 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 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 08:00:22,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:00:22,529 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:22,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:22,529 INFO L82 PathProgramCache]: Analyzing trace with hash 170303409, now seen corresponding path program 1 times [2020-10-29 08:00:22,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:22,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173949874] [2020-10-29 08:00:22,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:22,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:22,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:23,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:26,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:27,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:27,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 425 [2020-10-29 08:00:27,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:27,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-29 08:00:27,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:27,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-29 08:00:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 08:00:27,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:27,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:27,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:27,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:27,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:27,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:27,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:00:27,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:27,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:27,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:27,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:27,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:27,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:27,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:27,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:00:27,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:27,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:00:27,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:27,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:27,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:27,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:27,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:27,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:27,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:00:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:28,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:28,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:28,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:00:28,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:28,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-29 08:00:28,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:28,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:28,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 08:00:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:00:28,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 08:00:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:28,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:28,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:28,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:28,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:28,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-29 08:00:28,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:28,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:00:28,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:28,572 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 385 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-29 08:00:28,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173949874] [2020-10-29 08:00:28,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:28,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:00:28,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424604638] [2020-10-29 08:00:28,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:00:28,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:28,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:00:28,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:00:28,576 INFO L87 Difference]: Start difference. First operand 3124 states and 3385 transitions. Second operand 8 states. [2020-10-29 08:00:33,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:33,956 INFO L93 Difference]: Finished difference Result 9683 states and 10724 transitions. [2020-10-29 08:00:33,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:00:33,957 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 409 [2020-10-29 08:00:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:33,989 INFO L225 Difference]: With dead ends: 9683 [2020-10-29 08:00:33,990 INFO L226 Difference]: Without dead ends: 5882 [2020-10-29 08:00:34,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:00:34,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5882 states. [2020-10-29 08:00:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5882 to 5531. [2020-10-29 08:00:34,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5531 states. [2020-10-29 08:00:34,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5531 states to 5531 states and 6143 transitions. [2020-10-29 08:00:34,165 INFO L78 Accepts]: Start accepts. Automaton has 5531 states and 6143 transitions. Word has length 409 [2020-10-29 08:00:34,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:34,166 INFO L481 AbstractCegarLoop]: Abstraction has 5531 states and 6143 transitions. [2020-10-29 08:00:34,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:00:34,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5531 states and 6143 transitions. [2020-10-29 08:00:34,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2020-10-29 08:00:34,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:34,191 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:00:34,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:00:34,192 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:34,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:34,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1688590148, now seen corresponding path program 1 times [2020-10-29 08:00:34,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:34,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394177727] [2020-10-29 08:00:34,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:34,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:34,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:34,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:36,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:39,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:39,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 705 [2020-10-29 08:00:39,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:39,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-29 08:00:39,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:39,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:00:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:00:39,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:39,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:39,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:39,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:39,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:39,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:39,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:00:39,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:39,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:39,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:39,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:39,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:39,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:00:39,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:39,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-29 08:00:39,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:39,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:00:39,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:40,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:00:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:40,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:40,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:40,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:00:40,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:40,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:00:40,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:40,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-29 08:00:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:40,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:40,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-29 08:00:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:40,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:40,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:40,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:40,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:40,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:00:40,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:40,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:40,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:40,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:00:40,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:40,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:40,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-29 08:00:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:40,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:40,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:40,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:00:40,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:40,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-29 08:00:40,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:40,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-29 08:00:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:40,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:40,912 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 228 proven. 358 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-10-29 08:00:40,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394177727] [2020-10-29 08:00:40,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:40,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:40,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868070626] [2020-10-29 08:00:40,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:40,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:40,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:40,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:40,915 INFO L87 Difference]: Start difference. First operand 5531 states and 6143 transitions. Second operand 7 states. [2020-10-29 08:00:44,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:44,516 INFO L93 Difference]: Finished difference Result 11775 states and 13080 transitions. [2020-10-29 08:00:44,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:00:44,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 687 [2020-10-29 08:00:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:44,550 INFO L225 Difference]: With dead ends: 11775 [2020-10-29 08:00:44,550 INFO L226 Difference]: Without dead ends: 6250 [2020-10-29 08:00:44,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 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 08:00:44,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6250 states. [2020-10-29 08:00:44,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6250 to 6222. [2020-10-29 08:00:44,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6222 states. [2020-10-29 08:00:44,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6222 states to 6222 states and 6859 transitions. [2020-10-29 08:00:44,744 INFO L78 Accepts]: Start accepts. Automaton has 6222 states and 6859 transitions. Word has length 687 [2020-10-29 08:00:44,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:44,745 INFO L481 AbstractCegarLoop]: Abstraction has 6222 states and 6859 transitions. [2020-10-29 08:00:44,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:44,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6222 states and 6859 transitions. [2020-10-29 08:00:44,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2020-10-29 08:00:44,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:44,790 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:00:44,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:00:44,791 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:44,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:44,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1496244749, now seen corresponding path program 1 times [2020-10-29 08:00:44,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:44,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946495986] [2020-10-29 08:00:44,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:45,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:45,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:45,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:45,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:46,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:50,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:50,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 954 [2020-10-29 08:00:50,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:00:50,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-29 08:00:50,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:50,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:50,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:00:50,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:50,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:00:50,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:50,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:50,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:50,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:50,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:50,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:50,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 08:00:50,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:50,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:50,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:50,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:50,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:50,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:50,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:50,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:50,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:50,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:00:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-29 08:00:50,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:50,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:00:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:50,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:00:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:50,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:50,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:50,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:00:50,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:50,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-29 08:00:50,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:50,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:50,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:50,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:50,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:00:50,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:51,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:00:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:51,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:51,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:51,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:00:51,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:51,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:00:51,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:51,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-29 08:00:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:51,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:51,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-29 08:00:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:51,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:51,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:51,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:51,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:51,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:00:51,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:51,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:51,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:51,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:00:51,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:51,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:51,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2020-10-29 08:00:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:51,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:51,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:51,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:00:51,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:51,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:00:51,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:51,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:51,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:51,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-29 08:00:51,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:51,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:52,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 538 proven. 366 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2020-10-29 08:00:52,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946495986] [2020-10-29 08:00:52,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:52,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:52,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412606430] [2020-10-29 08:00:52,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:52,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:52,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:52,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:52,921 INFO L87 Difference]: Start difference. First operand 6222 states and 6859 transitions. Second operand 7 states. [2020-10-29 08:00:56,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:56,027 INFO L93 Difference]: Finished difference Result 11764 states and 13022 transitions. [2020-10-29 08:00:56,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:00:56,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 934 [2020-10-29 08:00:56,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:56,055 INFO L225 Difference]: With dead ends: 11764 [2020-10-29 08:00:56,055 INFO L226 Difference]: Without dead ends: 6224 [2020-10-29 08:00:56,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:00:56,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6224 states. [2020-10-29 08:00:56,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6224 to 6222. [2020-10-29 08:00:56,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6222 states. [2020-10-29 08:00:56,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6222 states to 6222 states and 6857 transitions. [2020-10-29 08:00:56,215 INFO L78 Accepts]: Start accepts. Automaton has 6222 states and 6857 transitions. Word has length 934 [2020-10-29 08:00:56,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:56,217 INFO L481 AbstractCegarLoop]: Abstraction has 6222 states and 6857 transitions. [2020-10-29 08:00:56,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:56,217 INFO L276 IsEmpty]: Start isEmpty. Operand 6222 states and 6857 transitions. [2020-10-29 08:00:56,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2020-10-29 08:00:56,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:56,236 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:56,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:00:56,237 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:56,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:56,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1836438022, now seen corresponding path program 1 times [2020-10-29 08:00:56,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:56,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737038741] [2020-10-29 08:00:56,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:56,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:56,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:01,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:01,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 990 [2020-10-29 08:01:01,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:01,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-29 08:01:01,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:01,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:01,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:01:01,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 733 [2020-10-29 08:01:01,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-29 08:01:01,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:01,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:01,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:01,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:01,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:01,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:01,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:01:01,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:01,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:01,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:01,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:01,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:01,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:01,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:01,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:01,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:01,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:01,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:01,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:01:01,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:01,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:01,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:01,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:01,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:01,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:01,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:01,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:01,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:01,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:01,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:01:01,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:01,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:01,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:01,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:01,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:01,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:02,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:02,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:01:02,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:02,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:02,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:02,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:02,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:01:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:01:02,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:01:02,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:02,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:01:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:02,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 08:01:02,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:01:02,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:02,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:01:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:01:02,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:01:02,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-29 08:01:02,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-29 08:01:02,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2051 backedges. 372 proven. 6 refuted. 0 times theorem prover too weak. 1673 trivial. 0 not checked. [2020-10-29 08:01:03,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1737038741] [2020-10-29 08:01:03,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:03,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 08:01:03,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492942100] [2020-10-29 08:01:03,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 08:01:03,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:03,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 08:01:03,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:01:03,384 INFO L87 Difference]: Start difference. First operand 6222 states and 6857 transitions. Second operand 6 states. [2020-10-29 08:01:06,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:06,946 INFO L93 Difference]: Finished difference Result 11762 states and 13016 transitions. [2020-10-29 08:01:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:01:06,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 968 [2020-10-29 08:01:06,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:06,967 INFO L225 Difference]: With dead ends: 11762 [2020-10-29 08:01:06,967 INFO L226 Difference]: Without dead ends: 6222 [2020-10-29 08:01:06,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:06,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6222 states. [2020-10-29 08:01:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6222 to 6220. [2020-10-29 08:01:07,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6220 states. [2020-10-29 08:01:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6220 states to 6220 states and 6704 transitions. [2020-10-29 08:01:07,108 INFO L78 Accepts]: Start accepts. Automaton has 6220 states and 6704 transitions. Word has length 968 [2020-10-29 08:01:07,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:07,110 INFO L481 AbstractCegarLoop]: Abstraction has 6220 states and 6704 transitions. [2020-10-29 08:01:07,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 08:01:07,110 INFO L276 IsEmpty]: Start isEmpty. Operand 6220 states and 6704 transitions. [2020-10-29 08:01:07,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1203 [2020-10-29 08:01:07,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:07,136 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:07,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:01:07,137 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:07,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:07,138 INFO L82 PathProgramCache]: Analyzing trace with hash -261530335, now seen corresponding path program 1 times [2020-10-29 08:01:07,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:07,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046585865] [2020-10-29 08:01:07,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:07,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:07,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:07,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:12,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:12,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1226 [2020-10-29 08:01:12,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:01:12,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 08:01:12,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:12,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 733 [2020-10-29 08:01:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:01:12,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:12,628 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 08:01:12,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:12,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:12,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:12,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:12,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:12,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:01:12,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:12,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:12,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:12,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:12,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:12,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:12,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:12,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:12,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 08:01:12,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:12,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:12,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:12,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:12,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:12,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:12,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:12,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:12,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:12,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:01:12,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:12,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:12,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:12,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:12,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:12,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:12,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:12,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:13,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:13,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:13,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:13,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:01:13,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:13,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:13,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:13,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:13,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:13,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:13,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:01:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:13,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:13,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:13,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:01:13,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:13,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:01:13,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:13,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:13,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:13,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:13,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:01:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:13,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:13,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:13,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:13,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:13,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 08:01:13,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:13,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:13,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:13,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:13,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:01:13,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:13,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:01:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:13,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:13,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:13,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:13,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:13,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-10-29 08:01:13,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:13,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:13,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:13,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:13,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:01:13,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:13,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 996 [2020-10-29 08:01:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:14,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:01:14,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:14,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 08:01:14,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:14,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:01:14,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:14,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2920 backedges. 1139 proven. 148 refuted. 0 times theorem prover too weak. 1633 trivial. 0 not checked. [2020-10-29 08:01:15,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046585865] [2020-10-29 08:01:15,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:15,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:15,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415559277] [2020-10-29 08:01:15,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:15,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:15,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:15,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:15,330 INFO L87 Difference]: Start difference. First operand 6220 states and 6704 transitions. Second operand 7 states. [2020-10-29 08:01:20,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:20,807 INFO L93 Difference]: Finished difference Result 12444 states and 13437 transitions. [2020-10-29 08:01:20,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:01:20,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1202 [2020-10-29 08:01:20,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:20,830 INFO L225 Difference]: With dead ends: 12444 [2020-10-29 08:01:20,830 INFO L226 Difference]: Without dead ends: 6906 [2020-10-29 08:01:20,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:01:20,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6906 states. [2020-10-29 08:01:20,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6906 to 6561. [2020-10-29 08:01:20,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6561 states. [2020-10-29 08:01:20,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 7052 transitions. [2020-10-29 08:01:20,968 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 7052 transitions. Word has length 1202 [2020-10-29 08:01:20,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:20,970 INFO L481 AbstractCegarLoop]: Abstraction has 6561 states and 7052 transitions. [2020-10-29 08:01:20,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:20,970 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 7052 transitions. [2020-10-29 08:01:20,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1213 [2020-10-29 08:01:20,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:21,000 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:21,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:01:21,001 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:21,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:21,002 INFO L82 PathProgramCache]: Analyzing trace with hash -2028466378, now seen corresponding path program 1 times [2020-10-29 08:01:21,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:21,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988630206] [2020-10-29 08:01:21,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:21,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:21,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:25,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:26,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1234 [2020-10-29 08:01:26,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:01:26,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5163 [2020-10-29 08:01:26,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:26,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:26,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:26,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-29 08:01:26,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:01:26,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:01:26,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:26,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:26,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:26,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:26,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:01:26,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:26,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:26,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:26,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:26,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:26,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:26,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:26,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 08:01:26,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:26,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:26,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:26,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:26,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:26,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:27,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:27,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:01:27,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:27,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:27,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:27,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:27,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:01:27,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:27,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:27,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:27,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:27,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:01:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:01:27,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-29 08:01:27,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:01:27,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:27,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-29 08:01:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:27,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-29 08:01:27,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:27,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:27,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:01:27,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:28,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-29 08:01:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:28,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:28,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:28,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:01:28,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:28,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 08:01:28,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:28,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:28,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:28,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:01:28,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:28,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2698 backedges. 1086 proven. 148 refuted. 0 times theorem prover too weak. 1464 trivial. 0 not checked. [2020-10-29 08:01:30,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988630206] [2020-10-29 08:01:30,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:30,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:30,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001722031] [2020-10-29 08:01:30,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:30,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:30,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:30,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:30,917 INFO L87 Difference]: Start difference. First operand 6561 states and 7052 transitions. Second operand 7 states. [2020-10-29 08:01:34,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:34,818 INFO L93 Difference]: Finished difference Result 12448 states and 13417 transitions. [2020-10-29 08:01:34,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:01:34,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1212 [2020-10-29 08:01:34,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:34,842 INFO L225 Difference]: With dead ends: 12448 [2020-10-29 08:01:34,843 INFO L226 Difference]: Without dead ends: 6569 [2020-10-29 08:01:34,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:01:34,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6569 states. [2020-10-29 08:01:34,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6569 to 6561. [2020-10-29 08:01:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6561 states. [2020-10-29 08:01:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 7048 transitions. [2020-10-29 08:01:34,978 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 7048 transitions. Word has length 1212 [2020-10-29 08:01:34,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:34,980 INFO L481 AbstractCegarLoop]: Abstraction has 6561 states and 7048 transitions. [2020-10-29 08:01:34,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:34,980 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 7048 transitions. [2020-10-29 08:01:35,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1231 [2020-10-29 08:01:35,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:35,009 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:35,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:01:35,009 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:35,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:35,010 INFO L82 PathProgramCache]: Analyzing trace with hash -836003421, now seen corresponding path program 1 times [2020-10-29 08:01:35,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:35,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255887236] [2020-10-29 08:01:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:35,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:35,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:36,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:36,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:38,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1254 [2020-10-29 08:01:40,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:01:40,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-29 08:01:40,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:40,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 761 [2020-10-29 08:01:40,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:01:40,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:40,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:01:40,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:40,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:40,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:01:40,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:40,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:01:40,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:40,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:01:40,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:01:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:40,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:01:40,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:40,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:01:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:01:40,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 08:01:40,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:01:40,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:41,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:01:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:41,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:41,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:41,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:41,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:41,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-29 08:01:41,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:41,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:41,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:41,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:41,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:01:41,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:41,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2020-10-29 08:01:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:41,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:41,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:41,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:01:41,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:41,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:01:41,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:41,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:41,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:41,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:01:41,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:41,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3044 backedges. 1167 proven. 148 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2020-10-29 08:01:43,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255887236] [2020-10-29 08:01:43,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:43,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:43,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185457280] [2020-10-29 08:01:43,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:43,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:43,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:43,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:43,755 INFO L87 Difference]: Start difference. First operand 6561 states and 7048 transitions. Second operand 7 states. [2020-10-29 08:01:48,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:48,117 INFO L93 Difference]: Finished difference Result 13134 states and 14195 transitions. [2020-10-29 08:01:48,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:01:48,118 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1230 [2020-10-29 08:01:48,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:48,139 INFO L225 Difference]: With dead ends: 13134 [2020-10-29 08:01:48,139 INFO L226 Difference]: Without dead ends: 7255 [2020-10-29 08:01:48,152 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 08:01:48,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7255 states. [2020-10-29 08:01:48,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7255 to 7243. [2020-10-29 08:01:48,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7243 states. [2020-10-29 08:01:48,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7243 states to 7243 states and 7753 transitions. [2020-10-29 08:01:48,277 INFO L78 Accepts]: Start accepts. Automaton has 7243 states and 7753 transitions. Word has length 1230 [2020-10-29 08:01:48,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:48,278 INFO L481 AbstractCegarLoop]: Abstraction has 7243 states and 7753 transitions. [2020-10-29 08:01:48,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:48,278 INFO L276 IsEmpty]: Start isEmpty. Operand 7243 states and 7753 transitions. [2020-10-29 08:01:48,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1348 [2020-10-29 08:01:48,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:48,309 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:48,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:01:48,309 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:48,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:48,310 INFO L82 PathProgramCache]: Analyzing trace with hash 2084167459, now seen corresponding path program 1 times [2020-10-29 08:01:48,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:48,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198443412] [2020-10-29 08:01:48,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:48,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:49,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:49,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:51,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1375 [2020-10-29 08:01:53,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:01:53,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-29 08:01:53,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1017 [2020-10-29 08:01:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-29 08:01:53,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:53,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:01:53,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:53,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:01:53,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:53,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:01:53,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:54,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:01:54,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:54,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:01:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:54,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:01:54,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:01:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:01:54,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:01:54,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:54,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:01:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:54,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:01:54,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:54,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:01:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:54,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 08:01:54,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:54,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:01:54,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:01:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:01:54,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 08:01:54,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:01:54,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1141 [2020-10-29 08:01:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:01:54,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:01:54,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:01:54,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:55,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4759 backedges. 1410 proven. 137 refuted. 0 times theorem prover too weak. 3212 trivial. 0 not checked. [2020-10-29 08:01:55,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198443412] [2020-10-29 08:01:55,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:55,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:55,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161658311] [2020-10-29 08:01:55,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:55,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:55,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:55,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:55,581 INFO L87 Difference]: Start difference. First operand 7243 states and 7753 transitions. Second operand 7 states. [2020-10-29 08:02:00,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:00,093 INFO L93 Difference]: Finished difference Result 15863 states and 17152 transitions. [2020-10-29 08:02:00,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:02:00,095 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1347 [2020-10-29 08:02:00,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:00,118 INFO L225 Difference]: With dead ends: 15863 [2020-10-29 08:02:00,118 INFO L226 Difference]: Without dead ends: 7922 [2020-10-29 08:02:00,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:02:00,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7922 states. [2020-10-29 08:02:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7922 to 7906. [2020-10-29 08:02:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7906 states. [2020-10-29 08:02:00,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7906 states to 7906 states and 8363 transitions. [2020-10-29 08:02:00,266 INFO L78 Accepts]: Start accepts. Automaton has 7906 states and 8363 transitions. Word has length 1347 [2020-10-29 08:02:00,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:00,267 INFO L481 AbstractCegarLoop]: Abstraction has 7906 states and 8363 transitions. [2020-10-29 08:02:00,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:00,267 INFO L276 IsEmpty]: Start isEmpty. Operand 7906 states and 8363 transitions. [2020-10-29 08:02:00,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1425 [2020-10-29 08:02:00,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:00,303 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:00,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:02:00,303 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:00,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:00,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1222368673, now seen corresponding path program 1 times [2020-10-29 08:02:00,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:00,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232862929] [2020-10-29 08:02:00,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:00,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:01,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:01,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:01,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:01,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:05,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1452 [2020-10-29 08:02:05,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:02:05,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 08:02:05,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:05,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1017 [2020-10-29 08:02:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:02:05,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:05,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:05,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:05,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:05,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:05,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:02:05,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:05,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:05,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:05,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:05,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:05,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:05,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:05,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:05,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:05,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:05,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:02:05,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:05,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:05,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:05,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:05,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:06,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:02:06,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:06,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:02:06,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:02:06,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:02:06,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:02:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:02:06,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:02:06,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:02:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:02:06,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:02:06,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:02:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:02:06,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:02:06,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:06,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:06,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:02:06,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:02:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:02:06,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-29 08:02:06,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-29 08:02:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1218 [2020-10-29 08:02:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:06,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:06,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:02:06,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:06,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:02:06,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:06,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:02:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:06,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4881 backedges. 1521 proven. 148 refuted. 0 times theorem prover too weak. 3212 trivial. 0 not checked. [2020-10-29 08:02:08,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232862929] [2020-10-29 08:02:08,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:08,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:08,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532761705] [2020-10-29 08:02:08,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:08,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:08,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:08,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:08,416 INFO L87 Difference]: Start difference. First operand 7906 states and 8363 transitions. Second operand 7 states. [2020-10-29 08:02:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:12,519 INFO L93 Difference]: Finished difference Result 15140 states and 16046 transitions. [2020-10-29 08:02:12,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:02:12,521 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1424 [2020-10-29 08:02:12,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:12,544 INFO L225 Difference]: With dead ends: 15140 [2020-10-29 08:02:12,544 INFO L226 Difference]: Without dead ends: 7916 [2020-10-29 08:02:12,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 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 08:02:12,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7916 states. [2020-10-29 08:02:12,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7916 to 7908. [2020-10-29 08:02:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7908 states. [2020-10-29 08:02:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7908 states to 7908 states and 8362 transitions. [2020-10-29 08:02:12,682 INFO L78 Accepts]: Start accepts. Automaton has 7908 states and 8362 transitions. Word has length 1424 [2020-10-29 08:02:12,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:12,684 INFO L481 AbstractCegarLoop]: Abstraction has 7908 states and 8362 transitions. [2020-10-29 08:02:12,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 7908 states and 8362 transitions. [2020-10-29 08:02:12,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1564 [2020-10-29 08:02:12,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:12,724 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-29 08:02:12,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:02:12,724 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:12,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:12,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1446535634, now seen corresponding path program 1 times [2020-10-29 08:02:12,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:12,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360264348] [2020-10-29 08:02:12,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:13,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:13,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:13,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:14,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:16,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:18,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:18,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1589 [2020-10-29 08:02:18,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:02:18,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-29 08:02:18,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:18,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 879 [2020-10-29 08:02:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:02:18,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:18,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:18,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:18,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:18,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:18,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:18,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:02:18,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:18,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:18,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:18,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:18,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:18,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:18,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:18,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:18,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:02:18,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:18,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:18,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:18,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:18,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:18,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:18,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:18,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:18,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:18,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:18,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:18,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:02:18,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:18,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:18,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:18,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:18,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:18,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:18,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:18,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:18,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:02:18,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:18,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:18,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:18,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:18,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:18,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:18,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:18,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:18,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:18,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:02:18,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:18,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:02:18,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:18,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:18,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:18,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:02:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:18,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:18,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:18,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:02:18,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:18,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-29 08:02:18,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:18,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:18,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:18,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:18,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-29 08:02:18,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:18,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 869 [2020-10-29 08:02:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:19,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:19,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:19,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:19,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:19,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-10-29 08:02:19,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:19,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:19,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:19,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:19,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:02:19,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:19,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1142 [2020-10-29 08:02:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:19,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:20,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:20,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:02:20,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:20,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-29 08:02:20,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:20,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:02:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:20,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:20,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1357 [2020-10-29 08:02:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:20,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:20,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:20,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:02:20,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:20,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:02:20,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:20,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:20,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:20,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:02:20,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:20,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:22,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4491 backedges. 1362 proven. 360 refuted. 0 times theorem prover too weak. 2769 trivial. 0 not checked. [2020-10-29 08:02:22,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360264348] [2020-10-29 08:02:22,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:22,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:02:22,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111927354] [2020-10-29 08:02:22,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:02:22,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:22,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:02:22,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:02:22,029 INFO L87 Difference]: Start difference. First operand 7908 states and 8362 transitions. Second operand 8 states. [2020-10-29 08:02:26,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:26,605 INFO L93 Difference]: Finished difference Result 18869 states and 20101 transitions. [2020-10-29 08:02:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:02:26,607 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1563 [2020-10-29 08:02:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:26,637 INFO L225 Difference]: With dead ends: 18869 [2020-10-29 08:02:26,637 INFO L226 Difference]: Without dead ends: 11304 [2020-10-29 08:02:26,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:02:26,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11304 states. [2020-10-29 08:02:26,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11304 to 10960. [2020-10-29 08:02:26,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10960 states. [2020-10-29 08:02:26,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10960 states to 10960 states and 11596 transitions. [2020-10-29 08:02:26,833 INFO L78 Accepts]: Start accepts. Automaton has 10960 states and 11596 transitions. Word has length 1563 [2020-10-29 08:02:26,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:26,835 INFO L481 AbstractCegarLoop]: Abstraction has 10960 states and 11596 transitions. [2020-10-29 08:02:26,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:02:26,835 INFO L276 IsEmpty]: Start isEmpty. Operand 10960 states and 11596 transitions. [2020-10-29 08:02:26,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1662 [2020-10-29 08:02:26,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:26,877 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:26,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:02:26,878 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:26,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:26,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1371451780, now seen corresponding path program 1 times [2020-10-29 08:02:26,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:26,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548901057] [2020-10-29 08:02:26,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:27,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:28,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:28,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:32,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:32,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1691 [2020-10-29 08:02:32,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:02:32,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-29 08:02:32,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:32,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:32,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:32,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:02:32,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-29 08:02:32,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:32,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:32,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:32,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:32,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:32,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:32,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:02:32,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:32,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:32,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:32,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:32,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:32,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:32,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:32,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:32,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:32,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:32,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:32,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 08:02:32,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:32,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:02:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:32,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:32,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:32,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:32,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:32,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:32,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 08:02:32,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:32,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 08:02:32,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:33,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:33,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:33,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:33,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:33,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:33,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:02:33,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:33,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:33,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:33,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-29 08:02:33,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:33,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:33,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:33,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:33,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:33,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:02:33,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:33,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:02:33,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:33,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:33,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:33,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:02:33,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:33,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:33,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:02:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:33,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:33,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:33,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:02:33,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:33,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:02:33,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:33,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:02:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:33,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:33,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:02:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:33,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:33,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:33,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:02:33,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:33,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:02:33,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:33,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:33,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:33,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:02:33,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:33,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:33,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:02:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:33,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:33,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:33,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 08:02:33,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:33,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:02:33,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:33,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 08:02:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:33,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:33,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 967 [2020-10-29 08:02:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:33,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:33,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:33,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:33,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 08:02:33,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:33,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-29 08:02:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:33,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:33,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1240 [2020-10-29 08:02:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:33,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:33,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:33,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:02:33,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:33,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:02:33,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:33,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:33,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:33,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:02:33,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:33,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:33,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1455 [2020-10-29 08:02:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:33,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:33,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:33,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:02:33,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:33,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:02:33,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:33,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:02:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:33,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:35,611 INFO L134 CoverageAnalysis]: Checked inductivity of 6009 backedges. 761 proven. 1009 refuted. 0 times theorem prover too weak. 4239 trivial. 0 not checked. [2020-10-29 08:02:35,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548901057] [2020-10-29 08:02:35,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:35,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:35,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062463700] [2020-10-29 08:02:35,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:35,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:35,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:35,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:35,614 INFO L87 Difference]: Start difference. First operand 10960 states and 11596 transitions. Second operand 7 states. [2020-10-29 08:02:40,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:40,073 INFO L93 Difference]: Finished difference Result 22263 states and 23614 transitions. [2020-10-29 08:02:40,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:02:40,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1661 [2020-10-29 08:02:40,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:40,106 INFO L225 Difference]: With dead ends: 22263 [2020-10-29 08:02:40,106 INFO L226 Difference]: Without dead ends: 11985 [2020-10-29 08:02:40,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 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 08:02:40,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11985 states. [2020-10-29 08:02:40,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11985 to 11642. [2020-10-29 08:02:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11642 states. [2020-10-29 08:02:40,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11642 states to 11642 states and 12292 transitions. [2020-10-29 08:02:40,353 INFO L78 Accepts]: Start accepts. Automaton has 11642 states and 12292 transitions. Word has length 1661 [2020-10-29 08:02:40,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:40,354 INFO L481 AbstractCegarLoop]: Abstraction has 11642 states and 12292 transitions. [2020-10-29 08:02:40,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:40,354 INFO L276 IsEmpty]: Start isEmpty. Operand 11642 states and 12292 transitions. [2020-10-29 08:02:40,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1770 [2020-10-29 08:02:40,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:40,396 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 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, 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, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-29 08:02:40,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:02:40,397 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:40,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:40,398 INFO L82 PathProgramCache]: Analyzing trace with hash -680928620, now seen corresponding path program 1 times [2020-10-29 08:02:40,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:40,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394388116] [2020-10-29 08:02:40,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:40,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:41,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:41,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:41,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:41,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:42,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:45,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:45,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1799 [2020-10-29 08:02:45,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:02:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-29 08:02:45,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:45,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1078 [2020-10-29 08:02:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-29 08:02:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:45,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:46,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:46,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:46,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:46,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:46,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:02:46,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:46,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:46,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:46,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:46,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:46,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:46,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:46,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:46,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:02:46,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:46,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:46,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:46,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:46,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:46,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:46,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:46,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:46,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:46,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:02:46,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:46,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:02:46,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:46,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:46,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:46,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:46,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:46,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:02:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:46,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:46,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:46,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:46,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:46,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:02:46,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:46,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:46,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:46,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:46,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:46,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:46,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:02:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:46,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:46,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:46,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:02:46,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:46,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:02:46,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:46,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:46,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:46,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:46,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:46,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:46,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:02:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:46,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:46,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:46,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:02:46,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:46,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:02:46,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:46,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:46,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:46,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:46,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:46,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:46,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-29 08:02:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:46,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:46,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:46,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:02:46,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:46,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:02:46,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:46,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:46,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:46,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:46,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:46,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:46,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-29 08:02:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:46,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:46,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:46,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:02:46,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:46,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 08:02:46,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:46,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:02:46,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:46,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1064 [2020-10-29 08:02:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:46,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:46,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:46,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-29 08:02:46,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:46,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-29 08:02:46,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:46,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-29 08:02:46,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:46,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1348 [2020-10-29 08:02:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:47,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:47,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:47,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:02:47,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 08:02:47,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:47,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:02:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:47,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:47,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1563 [2020-10-29 08:02:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:47,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:47,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:47,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:02:47,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:47,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:02:47,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:47,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:47,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:47,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:02:47,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:47,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0