/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-tiling/mlceu2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 19:52:32,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 19:52:32,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 19:52:32,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 19:52:32,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 19:52:32,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 19:52:32,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 19:52:32,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 19:52:32,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 19:52:32,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 19:52:32,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 19:52:32,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 19:52:32,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 19:52:32,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 19:52:32,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 19:52:32,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 19:52:32,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 19:52:32,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 19:52:32,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 19:52:32,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 19:52:32,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 19:52:32,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 19:52:32,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 19:52:32,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 19:52:32,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 19:52:32,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 19:52:32,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 19:52:32,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 19:52:32,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 19:52:32,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 19:52:32,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 19:52:32,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 19:52:32,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 19:52:32,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 19:52:32,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 19:52:32,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 19:52:32,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 19:52:32,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 19:52:32,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 19:52:32,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 19:52:32,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 19:52:32,344 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 19:52:32,375 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 19:52:32,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 19:52:32,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 19:52:32,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 19:52:32,380 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 19:52:32,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 19:52:32,380 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 19:52:32,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 19:52:32,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 19:52:32,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 19:52:32,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 19:52:32,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 19:52:32,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 19:52:32,383 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 19:52:32,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 19:52:32,384 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 19:52:32,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 19:52:32,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 19:52:32,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 19:52:32,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 19:52:32,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 19:52:32,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 19:52:32,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 19:52:32,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 19:52:32,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 19:52:32,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 19:52:32,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 19:52:32,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 19:52:32,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 19:52:32,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 19:52:32,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 19:52:32,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 19:52:32,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 19:52:32,862 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 19:52:32,863 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 19:52:32,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/mlceu2.c [2020-10-26 19:52:32,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/053a89db4/6a201b6a589547ed8dc5d544385521ea/FLAG6a1972a71 [2020-10-26 19:52:33,715 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 19:52:33,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/mlceu2.c [2020-10-26 19:52:33,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/053a89db4/6a201b6a589547ed8dc5d544385521ea/FLAG6a1972a71 [2020-10-26 19:52:34,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/053a89db4/6a201b6a589547ed8dc5d544385521ea [2020-10-26 19:52:34,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 19:52:34,104 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 19:52:34,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 19:52:34,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 19:52:34,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 19:52:34,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:52:34" (1/1) ... [2020-10-26 19:52:34,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b84106f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:52:34, skipping insertion in model container [2020-10-26 19:52:34,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:52:34" (1/1) ... [2020-10-26 19:52:34,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 19:52:34,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 19:52:34,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 19:52:34,374 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 19:52:34,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 19:52:34,442 INFO L208 MainTranslator]: Completed translation [2020-10-26 19:52:34,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:52:34 WrapperNode [2020-10-26 19:52:34,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 19:52:34,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 19:52:34,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 19:52:34,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 19:52:34,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:52:34" (1/1) ... [2020-10-26 19:52:34,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:52:34" (1/1) ... [2020-10-26 19:52:34,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:52:34" (1/1) ... [2020-10-26 19:52:34,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:52:34" (1/1) ... [2020-10-26 19:52:34,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:52:34" (1/1) ... [2020-10-26 19:52:34,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:52:34" (1/1) ... [2020-10-26 19:52:34,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:52:34" (1/1) ... [2020-10-26 19:52:34,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 19:52:34,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 19:52:34,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 19:52:34,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 19:52:34,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:52:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 19:52:34,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 19:52:34,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 19:52:34,642 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 19:52:34,643 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-26 19:52:34,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-26 19:52:34,643 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 19:52:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 19:52:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 19:52:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 19:52:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 19:52:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-26 19:52:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-26 19:52:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 19:52:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 19:52:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 19:52:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 19:52:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 19:52:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 19:52:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 19:52:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 19:52:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 19:52:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 19:52:35,248 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 19:52:35,249 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-26 19:52:35,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:52:35 BoogieIcfgContainer [2020-10-26 19:52:35,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 19:52:35,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 19:52:35,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 19:52:35,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 19:52:35,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:52:34" (1/3) ... [2020-10-26 19:52:35,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732f49de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:52:35, skipping insertion in model container [2020-10-26 19:52:35,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:52:34" (2/3) ... [2020-10-26 19:52:35,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732f49de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:52:35, skipping insertion in model container [2020-10-26 19:52:35,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:52:35" (3/3) ... [2020-10-26 19:52:35,280 INFO L111 eAbstractionObserver]: Analyzing ICFG mlceu2.c [2020-10-26 19:52:35,297 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 19:52:35,302 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 19:52:35,334 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 19:52:35,364 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 19:52:35,365 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 19:52:35,365 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 19:52:35,365 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 19:52:35,365 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 19:52:35,365 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 19:52:35,365 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 19:52:35,366 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 19:52:35,385 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-26 19:52:35,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 19:52:35,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:35,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:35,393 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:35,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:35,400 INFO L82 PathProgramCache]: Analyzing trace with hash 437417741, now seen corresponding path program 1 times [2020-10-26 19:52:35,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:35,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447956187] [2020-10-26 19:52:35,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:35,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:35,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:35,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-26 19:52:35,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:35,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-26 19:52:35,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:35,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 19:52:35,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 19:52:35,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:35,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:35,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:35,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:35,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:35,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 19:52:35,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:35,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:35,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:35,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:35,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:36,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 19:52:36,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447956187] [2020-10-26 19:52:36,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 19:52:36,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 19:52:36,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577898745] [2020-10-26 19:52:36,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 19:52:36,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:36,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 19:52:36,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 19:52:36,033 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2020-10-26 19:52:36,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:36,208 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2020-10-26 19:52:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 19:52:36,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-26 19:52:36,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:36,219 INFO L225 Difference]: With dead ends: 50 [2020-10-26 19:52:36,220 INFO L226 Difference]: Without dead ends: 25 [2020-10-26 19:52:36,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 19:52:36,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-26 19:52:36,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2020-10-26 19:52:36,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-26 19:52:36,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2020-10-26 19:52:36,269 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 15 [2020-10-26 19:52:36,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:36,270 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2020-10-26 19:52:36,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 19:52:36,270 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-10-26 19:52:36,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 19:52:36,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:36,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:36,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 19:52:36,273 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:36,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:36,274 INFO L82 PathProgramCache]: Analyzing trace with hash -777427985, now seen corresponding path program 1 times [2020-10-26 19:52:36,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:36,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397635446] [2020-10-26 19:52:36,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:36,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:36,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:36,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:36,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-26 19:52:36,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:52:36,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-26 19:52:36,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:36,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:36,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:36,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 19:52:36,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:52:36,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:36,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:36,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:36,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:36,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 19:52:36,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 19:52:36,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 19:52:36,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397635446] [2020-10-26 19:52:36,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 19:52:36,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 19:52:36,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654787948] [2020-10-26 19:52:36,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 19:52:36,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:36,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 19:52:36,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 19:52:36,886 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 4 states. [2020-10-26 19:52:37,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:37,103 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-10-26 19:52:37,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 19:52:37,105 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-26 19:52:37,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:37,109 INFO L225 Difference]: With dead ends: 44 [2020-10-26 19:52:37,110 INFO L226 Difference]: Without dead ends: 29 [2020-10-26 19:52:37,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 19:52:37,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-26 19:52:37,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2020-10-26 19:52:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-26 19:52:37,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2020-10-26 19:52:37,159 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 18 [2020-10-26 19:52:37,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:37,159 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2020-10-26 19:52:37,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 19:52:37,160 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-10-26 19:52:37,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 19:52:37,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:37,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:37,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 19:52:37,161 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:37,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:37,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1170454995, now seen corresponding path program 1 times [2020-10-26 19:52:37,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:37,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569077839] [2020-10-26 19:52:37,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:37,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:37,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:37,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:37,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-26 19:52:37,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:52:37,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-10-26 19:52:37,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:37,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-26 19:52:37,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:37,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:52:37,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:37,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:37,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:37,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:37,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:37,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 19:52:37,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:37,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:37,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 19:52:37,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569077839] [2020-10-26 19:52:37,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:37,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 19:52:37,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795498126] [2020-10-26 19:52:37,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 19:52:37,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:37,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 19:52:37,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 19:52:37,736 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 5 states. [2020-10-26 19:52:37,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:37,890 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2020-10-26 19:52:37,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 19:52:37,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-26 19:52:37,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:37,893 INFO L225 Difference]: With dead ends: 38 [2020-10-26 19:52:37,893 INFO L226 Difference]: Without dead ends: 26 [2020-10-26 19:52:37,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 19:52:37,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-26 19:52:37,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-26 19:52:37,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-26 19:52:37,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-10-26 19:52:37,901 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 18 [2020-10-26 19:52:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:37,901 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-10-26 19:52:37,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 19:52:37,902 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-10-26 19:52:37,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-26 19:52:37,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:37,903 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:37,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 19:52:37,903 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:37,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:37,904 INFO L82 PathProgramCache]: Analyzing trace with hash 856146127, now seen corresponding path program 1 times [2020-10-26 19:52:37,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:37,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454494044] [2020-10-26 19:52:37,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:37,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:37,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:38,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:38,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:38,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 19:52:38,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 19:52:38,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-26 19:52:38,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 19:52:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 19:52:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-26 19:52:38,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:38,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:38,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:38,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:38,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:38,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:38,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 19:52:38,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 19:52:38,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 19:52:38,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454494044] [2020-10-26 19:52:38,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:38,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 19:52:38,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273233891] [2020-10-26 19:52:38,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 19:52:38,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:38,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 19:52:38,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 19:52:38,412 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 6 states. [2020-10-26 19:52:38,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:38,674 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-10-26 19:52:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 19:52:38,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-26 19:52:38,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:38,676 INFO L225 Difference]: With dead ends: 42 [2020-10-26 19:52:38,676 INFO L226 Difference]: Without dead ends: 27 [2020-10-26 19:52:38,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-26 19:52:38,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-26 19:52:38,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2020-10-26 19:52:38,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-26 19:52:38,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-26 19:52:38,684 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 21 [2020-10-26 19:52:38,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:38,684 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-26 19:52:38,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 19:52:38,684 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-26 19:52:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-26 19:52:38,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:38,685 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:38,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 19:52:38,686 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:38,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:38,687 INFO L82 PathProgramCache]: Analyzing trace with hash 463119117, now seen corresponding path program 2 times [2020-10-26 19:52:38,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:38,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56259457] [2020-10-26 19:52:38,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:38,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:38,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:38,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 19:52:38,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:38,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-26 19:52:38,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 19:52:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 19:52:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:52:39,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:39,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:39,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:39,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:39,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:39,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:39,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:39,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:39,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:39,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:39,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:39,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-26 19:52:39,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56259457] [2020-10-26 19:52:39,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:39,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 19:52:39,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587855562] [2020-10-26 19:52:39,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 19:52:39,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:39,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 19:52:39,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-26 19:52:39,213 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-10-26 19:52:39,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:39,623 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-26 19:52:39,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 19:52:39,624 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-26 19:52:39,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:39,625 INFO L225 Difference]: With dead ends: 37 [2020-10-26 19:52:39,625 INFO L226 Difference]: Without dead ends: 34 [2020-10-26 19:52:39,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-26 19:52:39,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-26 19:52:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-10-26 19:52:39,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-26 19:52:39,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-10-26 19:52:39,634 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 21 [2020-10-26 19:52:39,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:39,635 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-10-26 19:52:39,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 19:52:39,635 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-10-26 19:52:39,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-26 19:52:39,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:39,636 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:39,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 19:52:39,637 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:39,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:39,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1583958966, now seen corresponding path program 1 times [2020-10-26 19:52:39,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:39,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907510015] [2020-10-26 19:52:39,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:39,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:39,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:39,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-26 19:52:39,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:39,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-26 19:52:39,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-26 19:52:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 19:52:39,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:40,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:40,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:40,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:40,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:40,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:40,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 19:52:40,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:40,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:40,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 19:52:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:40,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:40,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:40,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:40,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:40,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:40,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:40,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:40,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:40,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:40,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 19:52:40,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907510015] [2020-10-26 19:52:40,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:40,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-26 19:52:40,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124958109] [2020-10-26 19:52:40,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 19:52:40,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:40,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 19:52:40,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-26 19:52:40,183 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 11 states. [2020-10-26 19:52:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:40,951 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-10-26 19:52:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 19:52:40,952 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-26 19:52:40,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:40,953 INFO L225 Difference]: With dead ends: 47 [2020-10-26 19:52:40,953 INFO L226 Difference]: Without dead ends: 44 [2020-10-26 19:52:40,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2020-10-26 19:52:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-26 19:52:40,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-10-26 19:52:40,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-26 19:52:40,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-10-26 19:52:40,963 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 29 [2020-10-26 19:52:40,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:40,964 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-10-26 19:52:40,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 19:52:40,964 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-10-26 19:52:40,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-26 19:52:40,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:40,966 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:40,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 19:52:40,966 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:40,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:40,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1120060577, now seen corresponding path program 2 times [2020-10-26 19:52:40,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:40,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48489582] [2020-10-26 19:52:40,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:40,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:41,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:41,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 19:52:41,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:41,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-26 19:52:41,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:41,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 19:52:41,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:41,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 19:52:41,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:41,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:41,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:41,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:41,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:41,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:41,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:41,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:41,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:41,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:41,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:41,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:41,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 19:52:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:41,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:41,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:41,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:41,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:41,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:41,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:41,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:41,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:41,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:41,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:41,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-26 19:52:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:41,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:41,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:41,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:41,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:41,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:41,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:41,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:41,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:41,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:41,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 19:52:41,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48489582] [2020-10-26 19:52:41,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:41,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-26 19:52:41,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785506208] [2020-10-26 19:52:41,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 19:52:41,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:41,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 19:52:41,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-26 19:52:41,410 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states. [2020-10-26 19:52:41,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:41,873 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2020-10-26 19:52:41,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 19:52:41,874 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-10-26 19:52:41,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:41,875 INFO L225 Difference]: With dead ends: 80 [2020-10-26 19:52:41,875 INFO L226 Difference]: Without dead ends: 51 [2020-10-26 19:52:41,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-26 19:52:41,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-26 19:52:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2020-10-26 19:52:41,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-26 19:52:41,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-10-26 19:52:41,886 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 37 [2020-10-26 19:52:41,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:41,886 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-10-26 19:52:41,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 19:52:41,886 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-10-26 19:52:41,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-26 19:52:41,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:41,888 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:41,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 19:52:41,888 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:41,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:41,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1237643903, now seen corresponding path program 3 times [2020-10-26 19:52:41,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:41,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176961070] [2020-10-26 19:52:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:41,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:42,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:42,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-26 19:52:42,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:42,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-26 19:52:42,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:42,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-26 19:52:42,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:42,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 19:52:42,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:42,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:42,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:42,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:42,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:42,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:42,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:42,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:42,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:42,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:42,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:42,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:42,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 19:52:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:42,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:42,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:42,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:42,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:42,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:42,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:42,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:42,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:42,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:52:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:42,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:42,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:42,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:42,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:42,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:42,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:42,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:42,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:42,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 19:52:42,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176961070] [2020-10-26 19:52:42,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:42,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-26 19:52:42,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791463784] [2020-10-26 19:52:42,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-26 19:52:42,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:42,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-26 19:52:42,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-26 19:52:42,427 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 13 states. [2020-10-26 19:52:43,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:43,100 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-26 19:52:43,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-26 19:52:43,101 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-10-26 19:52:43,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:43,103 INFO L225 Difference]: With dead ends: 58 [2020-10-26 19:52:43,103 INFO L226 Difference]: Without dead ends: 55 [2020-10-26 19:52:43,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2020-10-26 19:52:43,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-26 19:52:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-26 19:52:43,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-26 19:52:43,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-26 19:52:43,114 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 40 [2020-10-26 19:52:43,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:43,114 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-26 19:52:43,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-26 19:52:43,114 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-26 19:52:43,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-26 19:52:43,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:43,116 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:43,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 19:52:43,117 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:43,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:43,117 INFO L82 PathProgramCache]: Analyzing trace with hash -414316248, now seen corresponding path program 4 times [2020-10-26 19:52:43,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:43,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909810549] [2020-10-26 19:52:43,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:43,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:43,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:43,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 19:52:43,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:43,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-26 19:52:43,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 19:52:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-26 19:52:43,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:43,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:43,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:43,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:43,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:43,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:43,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:43,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:43,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:43,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:43,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:43,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 19:52:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:43,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:43,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:43,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:43,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:43,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:43,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:43,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:43,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:43,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:43,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:43,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:52:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:43,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:43,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:43,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:43,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:43,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:52:43,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:43,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:43,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:43,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:43,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:43,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:52:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:43,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:43,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:43,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:43,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:43,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:43,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:43,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:43,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:43,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-10-26 19:52:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 19:52:43,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909810549] [2020-10-26 19:52:43,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:43,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-26 19:52:43,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914243471] [2020-10-26 19:52:43,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 19:52:43,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:43,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 19:52:43,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-26 19:52:43,646 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 12 states. [2020-10-26 19:52:44,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:44,078 INFO L93 Difference]: Finished difference Result 99 states and 102 transitions. [2020-10-26 19:52:44,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 19:52:44,079 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2020-10-26 19:52:44,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:44,080 INFO L225 Difference]: With dead ends: 99 [2020-10-26 19:52:44,081 INFO L226 Difference]: Without dead ends: 62 [2020-10-26 19:52:44,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-10-26 19:52:44,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-26 19:52:44,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2020-10-26 19:52:44,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-26 19:52:44,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-26 19:52:44,100 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 48 [2020-10-26 19:52:44,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:44,101 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-26 19:52:44,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 19:52:44,101 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-26 19:52:44,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-26 19:52:44,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:44,105 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:44,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 19:52:44,105 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:44,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:44,106 INFO L82 PathProgramCache]: Analyzing trace with hash 64134664, now seen corresponding path program 5 times [2020-10-26 19:52:44,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:44,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119602390] [2020-10-26 19:52:44,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:44,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:44,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:44,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-26 19:52:44,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:44,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-26 19:52:44,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:44,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 19:52:44,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:44,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 19:52:44,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:44,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:44,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:44,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:44,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:44,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:44,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:44,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:44,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:44,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:44,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-26 19:52:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:44,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:44,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:44,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:44,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:44,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:44,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:44,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:44,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:44,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:44,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:44,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-26 19:52:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:44,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:44,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:44,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:44,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:44,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:52:44,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:44,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:44,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:44,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:44,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:44,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-26 19:52:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:44,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:44,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:44,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:44,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:44,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:44,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:44,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:44,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 40 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 19:52:44,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119602390] [2020-10-26 19:52:44,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:44,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-26 19:52:44,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948420552] [2020-10-26 19:52:44,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-26 19:52:44,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:44,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 19:52:44,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-26 19:52:44,799 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 15 states. [2020-10-26 19:52:45,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:45,789 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-10-26 19:52:45,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-26 19:52:45,790 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-10-26 19:52:45,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:45,791 INFO L225 Difference]: With dead ends: 69 [2020-10-26 19:52:45,792 INFO L226 Difference]: Without dead ends: 66 [2020-10-26 19:52:45,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2020-10-26 19:52:45,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-26 19:52:45,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-10-26 19:52:45,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-26 19:52:45,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-10-26 19:52:45,803 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 51 [2020-10-26 19:52:45,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:45,804 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-10-26 19:52:45,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-26 19:52:45,804 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-10-26 19:52:45,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-26 19:52:45,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:45,806 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:45,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 19:52:45,806 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:45,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:45,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1394613169, now seen corresponding path program 6 times [2020-10-26 19:52:45,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:45,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [58329503] [2020-10-26 19:52:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:45,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:46,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:46,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-26 19:52:46,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:46,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-26 19:52:46,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-26 19:52:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-26 19:52:46,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:46,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:46,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:46,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:46,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:46,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:46,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:46,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:46,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:46,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:46,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:46,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:46,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-26 19:52:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:46,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:46,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:46,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:46,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:46,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:52:46,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:46,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:46,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:46,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:46,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:46,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-26 19:52:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:46,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:46,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:46,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:46,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:46,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:46,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:46,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:46,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:46,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:46,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:46,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-26 19:52:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:46,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:46,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:46,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:46,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:46,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:46,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:46,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:46,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-26 19:52:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:46,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:46,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:46,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:46,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:46,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:46,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:46,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:46,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:46,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:46,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:46,377 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 40 proven. 22 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-26 19:52:46,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [58329503] [2020-10-26 19:52:46,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:46,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-26 19:52:46,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647395647] [2020-10-26 19:52:46,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-26 19:52:46,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:46,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-26 19:52:46,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-26 19:52:46,380 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 14 states. [2020-10-26 19:52:47,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:47,028 INFO L93 Difference]: Finished difference Result 118 states and 121 transitions. [2020-10-26 19:52:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-26 19:52:47,028 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 59 [2020-10-26 19:52:47,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:47,030 INFO L225 Difference]: With dead ends: 118 [2020-10-26 19:52:47,030 INFO L226 Difference]: Without dead ends: 73 [2020-10-26 19:52:47,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-10-26 19:52:47,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-26 19:52:47,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 65. [2020-10-26 19:52:47,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-26 19:52:47,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-10-26 19:52:47,050 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 59 [2020-10-26 19:52:47,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:47,050 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-10-26 19:52:47,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-26 19:52:47,050 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-10-26 19:52:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-26 19:52:47,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:47,052 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:47,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 19:52:47,052 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:47,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:47,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1797765841, now seen corresponding path program 7 times [2020-10-26 19:52:47,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:47,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127125840] [2020-10-26 19:52:47,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:47,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:47,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:47,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 19:52:47,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:47,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-10-26 19:52:47,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:47,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-26 19:52:47,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:47,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 19:52:47,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:47,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:47,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:47,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:47,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:47,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:52:47,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:47,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-26 19:52:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:47,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:47,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:47,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:47,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:47,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:47,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:47,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:47,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:47,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:47,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:47,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-26 19:52:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:47,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:47,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:47,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:47,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:47,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:47,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:52:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:48,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:48,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:48,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:48,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:48,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:52:48,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:48,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:48,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:48,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:48,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:48,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 19:52:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:48,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:48,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:48,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:48,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:48,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:48,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:48,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 8 proven. 67 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-26 19:52:48,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127125840] [2020-10-26 19:52:48,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:48,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-26 19:52:48,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815007568] [2020-10-26 19:52:48,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-26 19:52:48,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:48,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-26 19:52:48,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-26 19:52:48,042 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 17 states. [2020-10-26 19:52:49,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:49,164 INFO L93 Difference]: Finished difference Result 80 states and 81 transitions. [2020-10-26 19:52:49,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-26 19:52:49,165 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 62 [2020-10-26 19:52:49,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:49,166 INFO L225 Difference]: With dead ends: 80 [2020-10-26 19:52:49,167 INFO L226 Difference]: Without dead ends: 77 [2020-10-26 19:52:49,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2020-10-26 19:52:49,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-26 19:52:49,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2020-10-26 19:52:49,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-26 19:52:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-10-26 19:52:49,179 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 62 [2020-10-26 19:52:49,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:49,180 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-10-26 19:52:49,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-26 19:52:49,180 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-10-26 19:52:49,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-26 19:52:49,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:49,182 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:49,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 19:52:49,182 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:49,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:49,183 INFO L82 PathProgramCache]: Analyzing trace with hash 2069127034, now seen corresponding path program 8 times [2020-10-26 19:52:49,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:49,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480993332] [2020-10-26 19:52:49,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:49,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:49,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:49,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-26 19:52:49,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:49,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-26 19:52:49,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:49,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 19:52:49,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:49,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 19:52:49,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:49,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:49,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:49,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:49,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:49,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:49,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:52:49,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:49,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:49,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:52:49,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-26 19:52:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:49,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:49,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:49,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:49,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:49,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:52:49,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:49,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:49,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:49,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:49,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:52:49,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-26 19:52:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:49,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:49,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:49,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:49,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:49,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:52:49,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:49,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:49,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:49,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:49,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:49,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:52:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:49,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:49,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:49,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:49,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:49,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:52:49,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:49,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:49,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:49,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:52:49,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 19:52:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:49,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:49,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:49,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:49,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:49,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:52:49,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:49,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:49,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:49,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:49,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:52:49,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:52:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:49,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:49,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:49,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:49,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:49,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:49,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:49,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:49,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:49,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:49,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:52:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 43 proven. 52 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-26 19:52:49,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480993332] [2020-10-26 19:52:49,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:49,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-26 19:52:49,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814608548] [2020-10-26 19:52:49,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-26 19:52:49,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:49,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-26 19:52:49,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-10-26 19:52:49,989 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 16 states. [2020-10-26 19:52:50,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:50,556 INFO L93 Difference]: Finished difference Result 137 states and 140 transitions. [2020-10-26 19:52:50,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-26 19:52:50,557 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 70 [2020-10-26 19:52:50,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:50,558 INFO L225 Difference]: With dead ends: 137 [2020-10-26 19:52:50,559 INFO L226 Difference]: Without dead ends: 84 [2020-10-26 19:52:50,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2020-10-26 19:52:50,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-26 19:52:50,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2020-10-26 19:52:50,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-26 19:52:50,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2020-10-26 19:52:50,580 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 70 [2020-10-26 19:52:50,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:50,580 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2020-10-26 19:52:50,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-26 19:52:50,580 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2020-10-26 19:52:50,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-26 19:52:50,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:50,581 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:50,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 19:52:50,582 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:50,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:50,582 INFO L82 PathProgramCache]: Analyzing trace with hash 886574170, now seen corresponding path program 9 times [2020-10-26 19:52:50,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:50,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761071859] [2020-10-26 19:52:50,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:50,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:51,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:51,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-26 19:52:51,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:51,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 754 [2020-10-26 19:52:51,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:51,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-26 19:52:51,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:51,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 19:52:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:52:51,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:51,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:51,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:51,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:51,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:51,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:51,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:51,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:51,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-26 19:52:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:51,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:51,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:51,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:51,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:51,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:52:51,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:51,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:51,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:51,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:51,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:51,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-26 19:52:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:51,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:51,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:51,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:51,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:51,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:51,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:51,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:51,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:51,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:51,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:51,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 19:52:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:51,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:51,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:51,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:51,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:51,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:52:51,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:51,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:51,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:51,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:51,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:51,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-26 19:52:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:51,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:51,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:51,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:51,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:51,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:51,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:51,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:51,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:51,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:51,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:51,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-26 19:52:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:51,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:51,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:51,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:51,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:51,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:51,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:51,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:51,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:51,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:51,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:51,898 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 10 proven. 101 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-26 19:52:51,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761071859] [2020-10-26 19:52:51,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:51,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-26 19:52:51,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368799990] [2020-10-26 19:52:51,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-26 19:52:51,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:51,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-26 19:52:51,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-26 19:52:51,901 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand 19 states. [2020-10-26 19:52:53,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:53,174 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-10-26 19:52:53,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-26 19:52:53,175 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 73 [2020-10-26 19:52:53,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:53,176 INFO L225 Difference]: With dead ends: 91 [2020-10-26 19:52:53,176 INFO L226 Difference]: Without dead ends: 88 [2020-10-26 19:52:53,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=113, Invalid=1077, Unknown=0, NotChecked=0, Total=1190 [2020-10-26 19:52:53,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-26 19:52:53,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2020-10-26 19:52:53,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-26 19:52:53,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2020-10-26 19:52:53,201 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 73 [2020-10-26 19:52:53,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:53,202 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2020-10-26 19:52:53,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-26 19:52:53,203 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2020-10-26 19:52:53,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-26 19:52:53,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:53,211 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:53,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 19:52:53,211 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:53,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:53,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1799153661, now seen corresponding path program 10 times [2020-10-26 19:52:53,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:53,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386415530] [2020-10-26 19:52:53,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:53,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:53,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:53,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-26 19:52:53,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:53,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 552 [2020-10-26 19:52:53,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-26 19:52:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:53,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 19:52:53,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:54,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:54,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:54,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:54,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:54,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:52:54,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:54,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-26 19:52:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:54,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:54,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:54,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:54,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:54,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:54,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:54,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:54,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:54,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:54,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:54,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-26 19:52:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:54,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:54,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:54,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:54,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:54,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:54,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:54,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:54,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:54,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 19:52:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:54,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:54,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:54,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:54,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:54,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:54,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:54,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:54,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:54,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:54,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:54,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-26 19:52:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:54,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:54,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:54,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:54,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:54,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:54,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:54,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:54,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:54,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:54,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-26 19:52:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:54,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:54,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:54,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:54,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:54,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:54,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:54,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:54,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-26 19:52:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:54,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:54,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:54,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:54,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:54,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:54,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:54,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:54,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:54,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:54,097 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 84 proven. 51 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-26 19:52:54,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386415530] [2020-10-26 19:52:54,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:54,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-26 19:52:54,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849169143] [2020-10-26 19:52:54,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-26 19:52:54,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:54,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-26 19:52:54,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2020-10-26 19:52:54,101 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand 18 states. [2020-10-26 19:52:54,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:54,764 INFO L93 Difference]: Finished difference Result 156 states and 159 transitions. [2020-10-26 19:52:54,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-26 19:52:54,764 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 81 [2020-10-26 19:52:54,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:54,766 INFO L225 Difference]: With dead ends: 156 [2020-10-26 19:52:54,766 INFO L226 Difference]: Without dead ends: 95 [2020-10-26 19:52:54,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2020-10-26 19:52:54,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-26 19:52:54,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-10-26 19:52:54,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-26 19:52:54,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2020-10-26 19:52:54,781 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 81 [2020-10-26 19:52:54,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:54,782 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2020-10-26 19:52:54,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-26 19:52:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2020-10-26 19:52:54,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-26 19:52:54,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:54,784 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:54,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 19:52:54,784 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:54,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:54,786 INFO L82 PathProgramCache]: Analyzing trace with hash -236151005, now seen corresponding path program 11 times [2020-10-26 19:52:54,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:54,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182375305] [2020-10-26 19:52:54,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:54,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:55,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:55,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-26 19:52:55,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:55,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 819 [2020-10-26 19:52:55,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-26 19:52:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-26 19:52:55,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:56,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:56,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:56,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:56,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:56,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:56,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:56,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:56,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:56,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:56,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:56,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:56,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 19:52:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:56,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:56,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:56,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:56,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:56,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:56,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:56,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:56,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:56,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:56,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:56,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-26 19:52:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:56,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:56,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:56,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:56,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:56,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:56,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:56,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:56,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:52:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:56,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:56,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:56,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:56,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:56,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:56,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:56,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:56,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:56,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:52:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:56,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:56,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:56,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:56,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:56,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:56,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:56,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:56,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-26 19:52:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:56,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:56,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:56,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:56,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:56,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:56,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:56,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:56,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:56,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:56,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:56,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 19:52:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:56,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:56,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:56,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:56,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:56,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:56,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:56,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:56,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:56,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:56,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:56,202 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 12 proven. 142 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-26 19:52:56,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182375305] [2020-10-26 19:52:56,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:56,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-26 19:52:56,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45254290] [2020-10-26 19:52:56,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-26 19:52:56,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:56,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-26 19:52:56,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-26 19:52:56,205 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand 21 states. [2020-10-26 19:52:57,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:57,818 INFO L93 Difference]: Finished difference Result 102 states and 103 transitions. [2020-10-26 19:52:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-26 19:52:57,821 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 84 [2020-10-26 19:52:57,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:57,822 INFO L225 Difference]: With dead ends: 102 [2020-10-26 19:52:57,822 INFO L226 Difference]: Without dead ends: 99 [2020-10-26 19:52:57,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=126, Invalid=1356, Unknown=0, NotChecked=0, Total=1482 [2020-10-26 19:52:57,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-26 19:52:57,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2020-10-26 19:52:57,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-26 19:52:57,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 96 transitions. [2020-10-26 19:52:57,835 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 96 transitions. Word has length 84 [2020-10-26 19:52:57,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:57,836 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 96 transitions. [2020-10-26 19:52:57,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-26 19:52:57,836 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 96 transitions. [2020-10-26 19:52:57,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-26 19:52:57,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:57,837 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:57,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 19:52:57,837 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:57,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:57,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1860227532, now seen corresponding path program 12 times [2020-10-26 19:52:57,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:57,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094832484] [2020-10-26 19:52:57,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:57,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:58,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:58,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 19:52:58,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:58,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 649 [2020-10-26 19:52:58,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-26 19:52:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:52:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-26 19:52:58,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:58,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:52:58,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:58,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:58,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:58,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:52:58,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:58,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:58,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:58,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:52:58,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:58,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:52:58,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:58,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 19:52:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:58,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:58,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:58,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:58,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:58,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:58,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:58,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:52:58,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-26 19:52:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:58,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:58,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:58,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:58,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:58,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:52:58,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:58,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:58,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:52:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:58,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:58,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:58,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:58,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:58,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:58,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:58,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:58,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:58,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:52:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:58,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:58,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:58,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:58,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:58,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:52:58,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:58,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:58,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-26 19:52:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:58,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:58,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:58,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:58,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:58,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:52:58,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:58,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:58,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:58,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 19:52:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:58,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:58,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:58,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:58,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:58,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:52:58,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:58,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:58,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-26 19:52:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:58,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:52:58,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:52:58,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:52:58,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:52:58,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:52:58,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:52:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:52:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:52:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:52:58,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:52:58,865 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 112 proven. 70 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-26 19:52:58,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094832484] [2020-10-26 19:52:58,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:52:58,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-26 19:52:58,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169198961] [2020-10-26 19:52:58,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-26 19:52:58,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:52:58,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-26 19:52:58,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2020-10-26 19:52:58,869 INFO L87 Difference]: Start difference. First operand 95 states and 96 transitions. Second operand 20 states. [2020-10-26 19:52:59,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:52:59,518 INFO L93 Difference]: Finished difference Result 175 states and 178 transitions. [2020-10-26 19:52:59,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-26 19:52:59,519 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 92 [2020-10-26 19:52:59,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:52:59,520 INFO L225 Difference]: With dead ends: 175 [2020-10-26 19:52:59,521 INFO L226 Difference]: Without dead ends: 106 [2020-10-26 19:52:59,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2020-10-26 19:52:59,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-26 19:52:59,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 98. [2020-10-26 19:52:59,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-26 19:52:59,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2020-10-26 19:52:59,541 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 92 [2020-10-26 19:52:59,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:52:59,541 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2020-10-26 19:52:59,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-26 19:52:59,542 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2020-10-26 19:52:59,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-26 19:52:59,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:52:59,543 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:52:59,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 19:52:59,543 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:52:59,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:52:59,544 INFO L82 PathProgramCache]: Analyzing trace with hash 310482604, now seen corresponding path program 13 times [2020-10-26 19:52:59,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:52:59,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427121684] [2020-10-26 19:52:59,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:52:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:52:59,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:00,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:00,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-26 19:53:00,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:00,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 885 [2020-10-26 19:53:00,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:00,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-26 19:53:00,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:00,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-26 19:53:00,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:01,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:01,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:01,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:01,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:01,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:01,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:01,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:01,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:01,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:01,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:01,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:01,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 19:53:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:01,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:01,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:01,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:01,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:01,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:53:01,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:01,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:01,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:01,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:01,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:01,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 19:53:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:01,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:01,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:01,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:01,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:01,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:01,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:01,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:01,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 19:53:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:01,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:01,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:01,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:01,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:01,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 19:53:01,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:01,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:01,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-26 19:53:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:01,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:01,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:01,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:01,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:01,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:01,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:01,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:01,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:01,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:01,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:01,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 19:53:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:01,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:01,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:01,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:01,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:01,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:01,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:01,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:01,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:01,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:01,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:01,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-26 19:53:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:01,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:01,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:01,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:01,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:01,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:01,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:01,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:01,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:01,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:01,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:01,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 19:53:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:01,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:01,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:01,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:01,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:01,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:01,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:01,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:01,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:01,136 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 14 proven. 190 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-26 19:53:01,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427121684] [2020-10-26 19:53:01,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:01,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-26 19:53:01,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083428949] [2020-10-26 19:53:01,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-26 19:53:01,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:01,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-26 19:53:01,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-26 19:53:01,141 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand 23 states. [2020-10-26 19:53:03,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:03,116 INFO L93 Difference]: Finished difference Result 113 states and 114 transitions. [2020-10-26 19:53:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-26 19:53:03,123 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 95 [2020-10-26 19:53:03,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:03,124 INFO L225 Difference]: With dead ends: 113 [2020-10-26 19:53:03,124 INFO L226 Difference]: Without dead ends: 110 [2020-10-26 19:53:03,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=139, Invalid=1667, Unknown=0, NotChecked=0, Total=1806 [2020-10-26 19:53:03,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-26 19:53:03,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2020-10-26 19:53:03,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-26 19:53:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 107 transitions. [2020-10-26 19:53:03,137 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 107 transitions. Word has length 95 [2020-10-26 19:53:03,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:03,138 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 107 transitions. [2020-10-26 19:53:03,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-26 19:53:03,138 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 107 transitions. [2020-10-26 19:53:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-26 19:53:03,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:03,139 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:03,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 19:53:03,140 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:03,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:03,140 INFO L82 PathProgramCache]: Analyzing trace with hash 456011861, now seen corresponding path program 14 times [2020-10-26 19:53:03,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:03,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160706665] [2020-10-26 19:53:03,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:03,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:03,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:03,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-26 19:53:03,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:03,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 807 [2020-10-26 19:53:03,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:03,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-26 19:53:03,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:03,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-26 19:53:03,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:04,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:04,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:04,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:04,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:04,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:04,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:53:04,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:04,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:04,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 19:53:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:04,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:04,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:04,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:04,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:04,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:04,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:04,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:04,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 19:53:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:04,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:04,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:04,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:04,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:04,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:04,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:04,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:04,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:04,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:04,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:04,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 19:53:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:04,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:04,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:04,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:04,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:04,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:04,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:04,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:04,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:04,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:04,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:04,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-26 19:53:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:04,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:04,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:04,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:04,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:04,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:04,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:04,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:04,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 19:53:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:04,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:04,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:04,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:04,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:04,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:04,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-26 19:53:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:04,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:04,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:04,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:04,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:04,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:04,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 19:53:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:04,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:04,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:04,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:04,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:04,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:53:04,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:04,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:04,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:04,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:04,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:04,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-26 19:53:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:04,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:04,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:04,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:04,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:04,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:04,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 144 proven. 92 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-26 19:53:04,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160706665] [2020-10-26 19:53:04,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:04,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-26 19:53:04,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026939321] [2020-10-26 19:53:04,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-26 19:53:04,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:04,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-26 19:53:04,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-10-26 19:53:04,390 INFO L87 Difference]: Start difference. First operand 106 states and 107 transitions. Second operand 22 states. [2020-10-26 19:53:05,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:05,255 INFO L93 Difference]: Finished difference Result 194 states and 197 transitions. [2020-10-26 19:53:05,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-26 19:53:05,255 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 103 [2020-10-26 19:53:05,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:05,257 INFO L225 Difference]: With dead ends: 194 [2020-10-26 19:53:05,257 INFO L226 Difference]: Without dead ends: 117 [2020-10-26 19:53:05,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=234, Invalid=758, Unknown=0, NotChecked=0, Total=992 [2020-10-26 19:53:05,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-26 19:53:05,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 109. [2020-10-26 19:53:05,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-26 19:53:05,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2020-10-26 19:53:05,275 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 103 [2020-10-26 19:53:05,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:05,275 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2020-10-26 19:53:05,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-26 19:53:05,275 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2020-10-26 19:53:05,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-26 19:53:05,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:05,277 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:05,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-26 19:53:05,277 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:05,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:05,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1315201163, now seen corresponding path program 15 times [2020-10-26 19:53:05,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:05,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240404843] [2020-10-26 19:53:05,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:05,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:06,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:06,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 19:53:06,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:06,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-10-26 19:53:06,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-26 19:53:06,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:06,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-26 19:53:06,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:06,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:06,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:06,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:06,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:06,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:06,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:53:06,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:06,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:06,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 19:53:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:06,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:06,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:06,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:06,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:06,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:06,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:06,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:06,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:06,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:06,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:06,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 19:53:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:06,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:06,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:06,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:06,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:06,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:06,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:06,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:06,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-26 19:53:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:06,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:06,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:06,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:06,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:06,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:06,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:06,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:06,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:53:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:06,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:06,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:06,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:06,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:06,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:06,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:06,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:06,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:06,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:06,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:06,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-26 19:53:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:06,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:06,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:06,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:06,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:06,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:06,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:06,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:06,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:06,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:06,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:06,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:53:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:06,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:06,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:06,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:06,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:06,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:06,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:06,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:06,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:53:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:06,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:06,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:06,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:06,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:06,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:06,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:06,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:06,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:06,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:06,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:06,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:53:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:06,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:06,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:06,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:06,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:06,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:06,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:06,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:06,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:06,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:06,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:07,006 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 16 proven. 245 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-26 19:53:07,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240404843] [2020-10-26 19:53:07,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:07,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-26 19:53:07,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913642411] [2020-10-26 19:53:07,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-26 19:53:07,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:07,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-26 19:53:07,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=551, Unknown=0, NotChecked=0, Total=600 [2020-10-26 19:53:07,008 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand 25 states. [2020-10-26 19:53:09,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:09,081 INFO L93 Difference]: Finished difference Result 124 states and 125 transitions. [2020-10-26 19:53:09,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-26 19:53:09,081 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 106 [2020-10-26 19:53:09,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:09,085 INFO L225 Difference]: With dead ends: 124 [2020-10-26 19:53:09,086 INFO L226 Difference]: Without dead ends: 121 [2020-10-26 19:53:09,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=149, Invalid=1921, Unknown=0, NotChecked=0, Total=2070 [2020-10-26 19:53:09,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-26 19:53:09,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2020-10-26 19:53:09,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-26 19:53:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 118 transitions. [2020-10-26 19:53:09,107 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 118 transitions. Word has length 106 [2020-10-26 19:53:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:09,107 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 118 transitions. [2020-10-26 19:53:09,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-26 19:53:09,108 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 118 transitions. [2020-10-26 19:53:09,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-26 19:53:09,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:09,110 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:09,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-26 19:53:09,110 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:09,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:09,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1921294306, now seen corresponding path program 16 times [2020-10-26 19:53:09,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:09,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489690987] [2020-10-26 19:53:09,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:09,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:09,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:09,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 19:53:09,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:09,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 802 [2020-10-26 19:53:09,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:09,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-26 19:53:09,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:09,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-26 19:53:09,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:10,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:10,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:10,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:10,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:10,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:10,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:53:10,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:10,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:10,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:10,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:10,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:10,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 19:53:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:10,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:10,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:10,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:10,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:10,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:53:10,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:10,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 19:53:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:10,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:10,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:10,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:10,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:10,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:10,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:10,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:10,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:10,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:10,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-26 19:53:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:10,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:10,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:10,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:10,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:10,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:10,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:10,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:10,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:10,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:10,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:10,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:53:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:10,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:10,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:10,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:10,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:10,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:10,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:10,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:10,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:10,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-26 19:53:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:10,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:10,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:10,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:10,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:10,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 19:53:10,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:10,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:10,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:10,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:53:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:10,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:10,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:10,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:10,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:10,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:10,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:10,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:10,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:53:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:10,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:10,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:10,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:10,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:10,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:10,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:10,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:10,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:10,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:53:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:10,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:10,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:10,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:10,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:10,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:10,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:10,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:10,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:10,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:10,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:10,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 19:53:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:10,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:10,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:10,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:10,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:10,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:10,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:10,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:10,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:10,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:10,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:10,488 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 180 proven. 117 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-26 19:53:10,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489690987] [2020-10-26 19:53:10,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:10,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-26 19:53:10,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891289386] [2020-10-26 19:53:10,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-26 19:53:10,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:10,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-26 19:53:10,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2020-10-26 19:53:10,492 INFO L87 Difference]: Start difference. First operand 117 states and 118 transitions. Second operand 24 states. [2020-10-26 19:53:11,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:11,358 INFO L93 Difference]: Finished difference Result 213 states and 216 transitions. [2020-10-26 19:53:11,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-26 19:53:11,358 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 114 [2020-10-26 19:53:11,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:11,361 INFO L225 Difference]: With dead ends: 213 [2020-10-26 19:53:11,361 INFO L226 Difference]: Without dead ends: 128 [2020-10-26 19:53:11,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=279, Invalid=911, Unknown=0, NotChecked=0, Total=1190 [2020-10-26 19:53:11,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-26 19:53:11,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 120. [2020-10-26 19:53:11,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-26 19:53:11,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 121 transitions. [2020-10-26 19:53:11,378 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 121 transitions. Word has length 114 [2020-10-26 19:53:11,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:11,378 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 121 transitions. [2020-10-26 19:53:11,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-26 19:53:11,378 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 121 transitions. [2020-10-26 19:53:11,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-26 19:53:11,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:11,380 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:11,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-26 19:53:11,380 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:11,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:11,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1646838530, now seen corresponding path program 17 times [2020-10-26 19:53:11,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:11,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458304346] [2020-10-26 19:53:11,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:11,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:12,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:12,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-26 19:53:12,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:12,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 972 [2020-10-26 19:53:12,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-26 19:53:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-26 19:53:12,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:13,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:13,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:13,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:13,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:13,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:13,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:13,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:13,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:13,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:13,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:13,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:13,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-26 19:53:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:13,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:13,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:13,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:13,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:13,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:13,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:13,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-26 19:53:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:13,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:13,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:13,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:13,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:13,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:13,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:13,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:13,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:13,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:13,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:13,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-26 19:53:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:13,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:13,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:13,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:13,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:13,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:13,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:13,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:13,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:13,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:13,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:13,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 19:53:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:13,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:13,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:13,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:13,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:13,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:13,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:13,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:13,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:13,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-26 19:53:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:13,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:13,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:13,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:13,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:13,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:13,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:13,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:13,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:13,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:13,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:13,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-26 19:53:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:13,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:13,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:13,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:13,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:13,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:13,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:13,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:13,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:13,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:13,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-26 19:53:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:13,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:13,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:13,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:13,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:13,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:13,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:13,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:13,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-26 19:53:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:13,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:13,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:13,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:13,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:13,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:13,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:13,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:13,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-26 19:53:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:13,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:13,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:13,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:13,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:13,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:13,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:13,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:13,134 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 18 proven. 307 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-26 19:53:13,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458304346] [2020-10-26 19:53:13,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:13,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-26 19:53:13,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088644119] [2020-10-26 19:53:13,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-26 19:53:13,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:13,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-26 19:53:13,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=649, Unknown=0, NotChecked=0, Total=702 [2020-10-26 19:53:13,137 INFO L87 Difference]: Start difference. First operand 120 states and 121 transitions. Second operand 27 states. [2020-10-26 19:53:15,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:15,568 INFO L93 Difference]: Finished difference Result 135 states and 136 transitions. [2020-10-26 19:53:15,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-26 19:53:15,573 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 117 [2020-10-26 19:53:15,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:15,574 INFO L225 Difference]: With dead ends: 135 [2020-10-26 19:53:15,574 INFO L226 Difference]: Without dead ends: 132 [2020-10-26 19:53:15,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=162, Invalid=2288, Unknown=0, NotChecked=0, Total=2450 [2020-10-26 19:53:15,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-26 19:53:15,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 128. [2020-10-26 19:53:15,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-26 19:53:15,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 129 transitions. [2020-10-26 19:53:15,592 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 129 transitions. Word has length 117 [2020-10-26 19:53:15,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:15,593 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 129 transitions. [2020-10-26 19:53:15,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-26 19:53:15,593 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 129 transitions. [2020-10-26 19:53:15,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-26 19:53:15,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:15,594 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:15,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-26 19:53:15,595 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:15,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:15,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1600742567, now seen corresponding path program 18 times [2020-10-26 19:53:15,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:15,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549933233] [2020-10-26 19:53:15,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:15,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:16,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:16,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-26 19:53:16,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:16,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 976 [2020-10-26 19:53:16,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-26 19:53:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-26 19:53:16,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:17,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:17,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:17,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:17,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:17,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:17,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:17,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:17,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:17,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:17,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-26 19:53:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:17,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:17,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:17,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:17,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:17,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:17,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:17,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-26 19:53:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:17,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:17,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:17,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:17,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:17,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:17,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:17,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-26 19:53:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:17,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:17,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:17,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:17,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:17,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:17,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:17,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:17,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:17,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:17,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 19:53:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:17,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:17,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:17,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:17,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:17,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:17,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:17,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:17,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:17,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:17,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-26 19:53:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:17,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:17,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:17,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:17,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:17,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:53:17,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:17,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:17,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:17,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:17,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-26 19:53:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:17,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:17,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:17,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:17,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:17,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:17,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:17,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:17,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:17,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:17,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-26 19:53:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:17,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:17,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:17,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:17,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:17,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:17,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:17,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-26 19:53:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:17,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:17,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:17,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:17,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:17,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:17,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:17,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:17,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:17,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:17,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-26 19:53:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:17,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:17,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:17,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:17,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:17,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:17,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:17,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-26 19:53:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:17,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:17,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:17,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:17,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:17,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:53:17,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:17,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:17,138 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 220 proven. 145 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-26 19:53:17,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549933233] [2020-10-26 19:53:17,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:17,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-26 19:53:17,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170372149] [2020-10-26 19:53:17,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-26 19:53:17,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:17,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-26 19:53:17,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2020-10-26 19:53:17,143 INFO L87 Difference]: Start difference. First operand 128 states and 129 transitions. Second operand 26 states. [2020-10-26 19:53:18,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:18,165 INFO L93 Difference]: Finished difference Result 232 states and 235 transitions. [2020-10-26 19:53:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-26 19:53:18,165 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 125 [2020-10-26 19:53:18,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:18,167 INFO L225 Difference]: With dead ends: 232 [2020-10-26 19:53:18,167 INFO L226 Difference]: Without dead ends: 139 [2020-10-26 19:53:18,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2020-10-26 19:53:18,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-26 19:53:18,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 131. [2020-10-26 19:53:18,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-26 19:53:18,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 132 transitions. [2020-10-26 19:53:18,181 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 132 transitions. Word has length 125 [2020-10-26 19:53:18,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:18,181 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 132 transitions. [2020-10-26 19:53:18,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-26 19:53:18,182 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 132 transitions. [2020-10-26 19:53:18,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-26 19:53:18,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:18,183 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:18,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-26 19:53:18,184 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:18,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:18,184 INFO L82 PathProgramCache]: Analyzing trace with hash 2109520839, now seen corresponding path program 19 times [2020-10-26 19:53:18,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:18,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856754766] [2020-10-26 19:53:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:18,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:19,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:19,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-26 19:53:19,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:19,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1152 [2020-10-26 19:53:19,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-26 19:53:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 19:53:19,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:20,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:20,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:20,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:20,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:20,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:53:20,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:20,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 19:53:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:20,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:20,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:20,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:20,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:20,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:20,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:20,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-26 19:53:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:20,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:20,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:20,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:20,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:20,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:20,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:20,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:20,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:20,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:20,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 19:53:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:20,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:20,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:20,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:20,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:20,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:53:20,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:20,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:53:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:20,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:20,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:20,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:20,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:20,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:20,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:20,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:53:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:20,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:20,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:20,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:20,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:20,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:20,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:20,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-26 19:53:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:20,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:20,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:20,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:20,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:20,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:20,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:20,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:20,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:20,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:20,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-26 19:53:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:20,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:20,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:20,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:20,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:20,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:20,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:20,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:20,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:20,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:20,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-26 19:53:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:20,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:20,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:20,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:20,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:20,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:20,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:20,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 19:53:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:20,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:20,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:20,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:20,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:20,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:20,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:20,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-26 19:53:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:20,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:20,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:20,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:20,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:20,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:20,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:20,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 20 proven. 376 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-26 19:53:20,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856754766] [2020-10-26 19:53:20,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:20,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-26 19:53:20,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873261512] [2020-10-26 19:53:20,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-26 19:53:20,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:20,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-26 19:53:20,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-10-26 19:53:20,311 INFO L87 Difference]: Start difference. First operand 131 states and 132 transitions. Second operand 29 states. [2020-10-26 19:53:23,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:23,401 INFO L93 Difference]: Finished difference Result 146 states and 147 transitions. [2020-10-26 19:53:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-26 19:53:23,402 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 128 [2020-10-26 19:53:23,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:23,404 INFO L225 Difference]: With dead ends: 146 [2020-10-26 19:53:23,404 INFO L226 Difference]: Without dead ends: 143 [2020-10-26 19:53:23,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=173, Invalid=2689, Unknown=0, NotChecked=0, Total=2862 [2020-10-26 19:53:23,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-26 19:53:23,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139. [2020-10-26 19:53:23,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-26 19:53:23,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 140 transitions. [2020-10-26 19:53:23,429 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 140 transitions. Word has length 128 [2020-10-26 19:53:23,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:23,430 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 140 transitions. [2020-10-26 19:53:23,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-26 19:53:23,430 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 140 transitions. [2020-10-26 19:53:23,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-26 19:53:23,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:23,433 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:23,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-26 19:53:23,435 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:23,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:23,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1565783440, now seen corresponding path program 20 times [2020-10-26 19:53:23,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:23,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136107550] [2020-10-26 19:53:23,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:23,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:24,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-26 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1083 [2020-10-26 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-26 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-26 19:53:24,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:24,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:24,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:24,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:24,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:24,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:24,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:24,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:24,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:24,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 19:53:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:24,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:24,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:24,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:24,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:24,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:24,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:24,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:24,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:24,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:24,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:24,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-26 19:53:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:24,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:25,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:25,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:25,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:25,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:25,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:25,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:25,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:25,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:25,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 19:53:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:25,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:25,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:25,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:25,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:25,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:25,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:25,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:25,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:53:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:25,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:25,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:25,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:25,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:25,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:25,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:25,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:25,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:53:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:25,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:25,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:25,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:25,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:25,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:25,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:25,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:25,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:25,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:25,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:25,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-26 19:53:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:25,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:25,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:25,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:25,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:25,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:25,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-26 19:53:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:25,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:25,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:25,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:25,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:25,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:25,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:25,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:25,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:25,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18 [2020-10-26 19:53:25,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-26 19:53:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:25,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:25,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:25,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:25,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:25,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:25,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:25,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:25,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 19:53:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:25,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:25,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:25,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:25,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:25,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:25,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:25,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:25,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:25,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:25,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:25,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-26 19:53:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:25,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:25,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:25,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:25,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:25,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:25,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:25,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:25,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:25,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:25,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:25,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 19:53:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:25,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:25,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:25,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:25,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:25,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:25,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:25,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:25,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:25,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:25,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 264 proven. 176 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-26 19:53:25,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136107550] [2020-10-26 19:53:25,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:25,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-26 19:53:25,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35064879] [2020-10-26 19:53:25,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-26 19:53:25,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:25,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-26 19:53:25,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2020-10-26 19:53:25,108 INFO L87 Difference]: Start difference. First operand 139 states and 140 transitions. Second operand 28 states. [2020-10-26 19:53:26,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:26,181 INFO L93 Difference]: Finished difference Result 251 states and 254 transitions. [2020-10-26 19:53:26,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-26 19:53:26,182 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 136 [2020-10-26 19:53:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:26,184 INFO L225 Difference]: With dead ends: 251 [2020-10-26 19:53:26,184 INFO L226 Difference]: Without dead ends: 150 [2020-10-26 19:53:26,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=381, Invalid=1259, Unknown=0, NotChecked=0, Total=1640 [2020-10-26 19:53:26,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-26 19:53:26,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 142. [2020-10-26 19:53:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-26 19:53:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 143 transitions. [2020-10-26 19:53:26,204 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 143 transitions. Word has length 136 [2020-10-26 19:53:26,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:26,204 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 143 transitions. [2020-10-26 19:53:26,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-26 19:53:26,204 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 143 transitions. [2020-10-26 19:53:26,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-26 19:53:26,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:26,206 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:26,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-26 19:53:26,206 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:26,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:26,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1209991344, now seen corresponding path program 21 times [2020-10-26 19:53:26,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:26,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464908739] [2020-10-26 19:53:26,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:26,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:27,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:27,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-26 19:53:27,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:27,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1368 [2020-10-26 19:53:27,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-26 19:53:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-26 19:53:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:28,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:28,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:28,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-26 19:53:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:28,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:28,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:28,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-26 19:53:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:28,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:28,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:28,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:28,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-26 19:53:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:28,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:28,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:28,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:28,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-26 19:53:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:28,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:28,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:28,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 19:53:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:28,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:28,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:28,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:28,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-26 19:53:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:28,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:28,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:28,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-26 19:53:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:28,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:28,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:28,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-26 19:53:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:28,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:28,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:28,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-26 19:53:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:28,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:28,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:28,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:28,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 19:53:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:28,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:28,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:28,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-26 19:53:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:28,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:28,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:28,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:28,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:28,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:28,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:28,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:28,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:28,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:28,558 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 22 proven. 452 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-26 19:53:28,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464908739] [2020-10-26 19:53:28,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:28,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-26 19:53:28,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209730998] [2020-10-26 19:53:28,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-26 19:53:28,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:28,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-26 19:53:28,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-10-26 19:53:28,560 INFO L87 Difference]: Start difference. First operand 142 states and 143 transitions. Second operand 31 states. [2020-10-26 19:53:31,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:31,935 INFO L93 Difference]: Finished difference Result 157 states and 158 transitions. [2020-10-26 19:53:31,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-26 19:53:31,935 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 139 [2020-10-26 19:53:31,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:31,938 INFO L225 Difference]: With dead ends: 157 [2020-10-26 19:53:31,938 INFO L226 Difference]: Without dead ends: 154 [2020-10-26 19:53:31,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=191, Invalid=3231, Unknown=0, NotChecked=0, Total=3422 [2020-10-26 19:53:31,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-26 19:53:31,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 150. [2020-10-26 19:53:31,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-26 19:53:31,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 151 transitions. [2020-10-26 19:53:31,955 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 151 transitions. Word has length 139 [2020-10-26 19:53:31,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:31,955 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 151 transitions. [2020-10-26 19:53:31,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-26 19:53:31,955 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 151 transitions. [2020-10-26 19:53:31,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-26 19:53:31,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:31,957 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:31,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-26 19:53:31,958 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:31,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:31,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1166232327, now seen corresponding path program 22 times [2020-10-26 19:53:31,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:31,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846308764] [2020-10-26 19:53:31,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:31,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-26 19:53:33,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1288 [2020-10-26 19:53:33,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-26 19:53:33,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:33,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-26 19:53:33,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:33,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:33,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:33,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:33,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-26 19:53:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:33,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-26 19:53:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:33,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-26 19:53:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:33,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-26 19:53:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:33,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 19:53:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:33,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-26 19:53:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:33,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-26 19:53:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:33,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-26 19:53:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:33,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-26 19:53:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:33,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 19:53:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:33,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-26 19:53:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:33,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-26 19:53:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:33,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:33,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:33,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:33,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:33,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:33,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:33,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:33,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:33,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:33,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:33,942 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 312 proven. 210 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-26 19:53:33,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [846308764] [2020-10-26 19:53:33,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:33,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-26 19:53:33,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958777183] [2020-10-26 19:53:33,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-26 19:53:33,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:33,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-26 19:53:33,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2020-10-26 19:53:33,944 INFO L87 Difference]: Start difference. First operand 150 states and 151 transitions. Second operand 30 states. [2020-10-26 19:53:35,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:35,232 INFO L93 Difference]: Finished difference Result 270 states and 273 transitions. [2020-10-26 19:53:35,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-26 19:53:35,233 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 147 [2020-10-26 19:53:35,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:35,234 INFO L225 Difference]: With dead ends: 270 [2020-10-26 19:53:35,234 INFO L226 Difference]: Without dead ends: 161 [2020-10-26 19:53:35,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=438, Invalid=1454, Unknown=0, NotChecked=0, Total=1892 [2020-10-26 19:53:35,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-26 19:53:35,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 153. [2020-10-26 19:53:35,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-26 19:53:35,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 154 transitions. [2020-10-26 19:53:35,254 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 154 transitions. Word has length 147 [2020-10-26 19:53:35,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:35,254 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 154 transitions. [2020-10-26 19:53:35,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-26 19:53:35,254 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 154 transitions. [2020-10-26 19:53:35,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-26 19:53:35,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:35,256 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:35,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-26 19:53:35,257 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:35,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:35,257 INFO L82 PathProgramCache]: Analyzing trace with hash 702018585, now seen corresponding path program 23 times [2020-10-26 19:53:35,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:35,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509612311] [2020-10-26 19:53:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:35,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:36,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:36,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-26 19:53:36,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:36,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1478 [2020-10-26 19:53:36,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:36,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-26 19:53:36,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:36,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-26 19:53:36,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:37,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:37,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:37,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 19:53:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:53:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:53:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:53:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:53:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:53:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:53:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:53:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:53:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:53:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:53:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:53:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:37,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:37,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:37,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:37,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:37,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:37,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:37,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:37,909 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 24 proven. 535 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-26 19:53:37,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509612311] [2020-10-26 19:53:37,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:37,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-26 19:53:37,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647230421] [2020-10-26 19:53:37,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-26 19:53:37,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:37,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-26 19:53:37,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-10-26 19:53:37,912 INFO L87 Difference]: Start difference. First operand 153 states and 154 transitions. Second operand 33 states. [2020-10-26 19:53:41,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:41,952 INFO L93 Difference]: Finished difference Result 168 states and 169 transitions. [2020-10-26 19:53:41,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-26 19:53:41,953 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 150 [2020-10-26 19:53:41,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:41,955 INFO L225 Difference]: With dead ends: 168 [2020-10-26 19:53:41,955 INFO L226 Difference]: Without dead ends: 165 [2020-10-26 19:53:41,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=204, Invalid=3702, Unknown=0, NotChecked=0, Total=3906 [2020-10-26 19:53:41,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-26 19:53:41,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 161. [2020-10-26 19:53:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-26 19:53:41,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 162 transitions. [2020-10-26 19:53:41,983 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 162 transitions. Word has length 150 [2020-10-26 19:53:41,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:41,984 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 162 transitions. [2020-10-26 19:53:41,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-26 19:53:41,984 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 162 transitions. [2020-10-26 19:53:41,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-26 19:53:41,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:41,985 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:41,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-26 19:53:41,986 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:41,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:41,986 INFO L82 PathProgramCache]: Analyzing trace with hash 2046480578, now seen corresponding path program 24 times [2020-10-26 19:53:41,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:41,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095289331] [2020-10-26 19:53:41,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:42,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-26 19:53:43,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1162 [2020-10-26 19:53:43,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-26 19:53:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-26 19:53:43,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:43,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:43,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:43,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:43,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 19:53:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:43,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:53:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:43,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:53:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:43,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:53:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:43,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:53:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:43,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:53:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:43,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:53:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 19:53:43,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:53:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:43,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:53:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:43,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:53:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:43,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:53:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:43,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:53:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:43,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 19:53:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:43,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:43,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:43,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:43,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:43,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:43,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:43,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:43,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:43,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:43,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:43,924 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 364 proven. 247 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-26 19:53:43,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095289331] [2020-10-26 19:53:43,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:43,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-26 19:53:43,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313260863] [2020-10-26 19:53:43,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-26 19:53:43,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:43,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-26 19:53:43,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=749, Unknown=0, NotChecked=0, Total=992 [2020-10-26 19:53:43,927 INFO L87 Difference]: Start difference. First operand 161 states and 162 transitions. Second operand 32 states. [2020-10-26 19:53:45,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:45,355 INFO L93 Difference]: Finished difference Result 289 states and 292 transitions. [2020-10-26 19:53:45,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-26 19:53:45,356 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 158 [2020-10-26 19:53:45,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:45,358 INFO L225 Difference]: With dead ends: 289 [2020-10-26 19:53:45,358 INFO L226 Difference]: Without dead ends: 172 [2020-10-26 19:53:45,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=499, Invalid=1663, Unknown=0, NotChecked=0, Total=2162 [2020-10-26 19:53:45,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-26 19:53:45,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 164. [2020-10-26 19:53:45,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-26 19:53:45,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 165 transitions. [2020-10-26 19:53:45,378 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 165 transitions. Word has length 158 [2020-10-26 19:53:45,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:45,379 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 165 transitions. [2020-10-26 19:53:45,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-26 19:53:45,379 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 165 transitions. [2020-10-26 19:53:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-26 19:53:45,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:45,381 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:45,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-26 19:53:45,381 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:45,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:45,381 INFO L82 PathProgramCache]: Analyzing trace with hash 564583842, now seen corresponding path program 25 times [2020-10-26 19:53:45,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:45,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794469763] [2020-10-26 19:53:45,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:45,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:46,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:46,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-26 19:53:46,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:46,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1461 [2020-10-26 19:53:46,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:46,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-26 19:53:46,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:46,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-26 19:53:46,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:47,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:47,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:47,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:47,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:47,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:47,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:47,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-26 19:53:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:47,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:47,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:47,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:47,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:47,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:47,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:47,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:47,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-26 19:53:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:47,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:47,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:47,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:47,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:47,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:47,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-26 19:53:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:47,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:47,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:47,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:47,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:47,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:47,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:47,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:47,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:47,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:47,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:48,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-26 19:53:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:48,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:48,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:48,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:48,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:48,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:48,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:48,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:48,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:48,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:48,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:48,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-26 19:53:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:48,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:48,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:48,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:48,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:48,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:48,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:48,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:48,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:48,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:48,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:48,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-26 19:53:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:48,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:48,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:48,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:48,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:48,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:48,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:48,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:48,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:48,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:48,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:48,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 19:53:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:48,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:48,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:48,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:48,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:48,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:48,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:48,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:48,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-26 19:53:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:48,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:48,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:48,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:48,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:48,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:48,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:48,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:48,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-26 19:53:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:48,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:48,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:48,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:48,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:48,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:48,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:48,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:48,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:48,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:48,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:48,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 19:53:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:48,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:48,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:48,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:48,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:48,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:48,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:48,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:48,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:48,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:48,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:48,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-26 19:53:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:48,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:48,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:48,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:48,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:48,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:48,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:48,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:48,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:48,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:48,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:48,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-26 19:53:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:48,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:48,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:48,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:48,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:48,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:48,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:48,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:48,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:48,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-26 19:53:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:48,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:48,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:48,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:48,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:48,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:48,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:48,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:48,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:48,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:48,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 963 backedges. 26 proven. 625 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-26 19:53:48,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794469763] [2020-10-26 19:53:48,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:48,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-26 19:53:48,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56556921] [2020-10-26 19:53:48,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-26 19:53:48,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:48,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-26 19:53:48,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-26 19:53:48,089 INFO L87 Difference]: Start difference. First operand 164 states and 165 transitions. Second operand 35 states. [2020-10-26 19:53:52,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:52,703 INFO L93 Difference]: Finished difference Result 179 states and 180 transitions. [2020-10-26 19:53:52,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-10-26 19:53:52,704 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 161 [2020-10-26 19:53:52,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:52,706 INFO L225 Difference]: With dead ends: 179 [2020-10-26 19:53:52,706 INFO L226 Difference]: Without dead ends: 176 [2020-10-26 19:53:52,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=217, Invalid=4205, Unknown=0, NotChecked=0, Total=4422 [2020-10-26 19:53:52,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-10-26 19:53:52,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 172. [2020-10-26 19:53:52,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-26 19:53:52,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 173 transitions. [2020-10-26 19:53:52,737 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 173 transitions. Word has length 161 [2020-10-26 19:53:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:52,737 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 173 transitions. [2020-10-26 19:53:52,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-26 19:53:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 173 transitions. [2020-10-26 19:53:52,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-26 19:53:52,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:52,739 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:52,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-26 19:53:52,740 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:52,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:52,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1701847371, now seen corresponding path program 26 times [2020-10-26 19:53:52,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:52,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061654887] [2020-10-26 19:53:52,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:52,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:53,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:53,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-26 19:53:53,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:53,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1177 [2020-10-26 19:53:53,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-26 19:53:53,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:53,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-10-26 19:53:53,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:54,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:54,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:54,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-26 19:53:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:54,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-26 19:53:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:54,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-26 19:53:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:54,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-26 19:53:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:54,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-26 19:53:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:54,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-26 19:53:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:54,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 19:53:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:54,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-26 19:53:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:54,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-26 19:53:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:54,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 19:53:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:54,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-26 19:53:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:54,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-26 19:53:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:54,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-26 19:53:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:54,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-26 19:53:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:54,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:54,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:54,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:54,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:54,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:54,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:54,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:54,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:54,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:54,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:54,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 420 proven. 287 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-26 19:53:54,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061654887] [2020-10-26 19:53:54,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:54,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-26 19:53:54,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882539355] [2020-10-26 19:53:54,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-26 19:53:54,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:54,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-26 19:53:54,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2020-10-26 19:53:54,730 INFO L87 Difference]: Start difference. First operand 172 states and 173 transitions. Second operand 34 states. [2020-10-26 19:53:56,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:53:56,123 INFO L93 Difference]: Finished difference Result 308 states and 311 transitions. [2020-10-26 19:53:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-26 19:53:56,124 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 169 [2020-10-26 19:53:56,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:53:56,126 INFO L225 Difference]: With dead ends: 308 [2020-10-26 19:53:56,126 INFO L226 Difference]: Without dead ends: 183 [2020-10-26 19:53:56,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=564, Invalid=1886, Unknown=0, NotChecked=0, Total=2450 [2020-10-26 19:53:56,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-26 19:53:56,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 175. [2020-10-26 19:53:56,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-10-26 19:53:56,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 176 transitions. [2020-10-26 19:53:56,154 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 176 transitions. Word has length 169 [2020-10-26 19:53:56,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:53:56,155 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 176 transitions. [2020-10-26 19:53:56,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-26 19:53:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 176 transitions. [2020-10-26 19:53:56,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-26 19:53:56,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:53:56,156 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:53:56,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-26 19:53:56,158 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:53:56,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:53:56,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1988802453, now seen corresponding path program 27 times [2020-10-26 19:53:56,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:53:56,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274444345] [2020-10-26 19:53:56,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:53:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:56,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:58,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:58,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-26 19:53:58,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:58,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2074 [2020-10-26 19:53:58,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:58,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-26 19:53:58,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:53:58,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 194 [2020-10-26 19:53:58,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:53:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:53:59,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:53:59,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:53:59,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:53:59,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:53:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:53:59,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-26 19:53:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:59,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 19:53:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:59,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-26 19:53:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:59,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 19:53:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:59,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-26 19:53:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:59,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-26 19:53:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:59,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 19:53:59,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-26 19:53:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:59,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-26 19:53:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:59,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-26 19:53:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:53:59,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 19:53:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:59,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-26 19:53:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:59,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-26 19:53:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:59,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-26 19:53:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:53:59,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:53:59,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:53:59,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:53:59,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:53:59,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:53:59,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:53:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:53:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:53:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:53:59,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:53:59,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 28 proven. 722 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-26 19:53:59,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274444345] [2020-10-26 19:53:59,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:53:59,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-26 19:53:59,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582815223] [2020-10-26 19:53:59,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-26 19:53:59,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:53:59,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-26 19:53:59,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2020-10-26 19:53:59,699 INFO L87 Difference]: Start difference. First operand 175 states and 176 transitions. Second operand 37 states. [2020-10-26 19:54:04,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:54:04,856 INFO L93 Difference]: Finished difference Result 190 states and 191 transitions. [2020-10-26 19:54:04,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-26 19:54:04,857 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 172 [2020-10-26 19:54:04,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:54:04,859 INFO L225 Difference]: With dead ends: 190 [2020-10-26 19:54:04,859 INFO L226 Difference]: Without dead ends: 187 [2020-10-26 19:54:04,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=230, Invalid=4740, Unknown=0, NotChecked=0, Total=4970 [2020-10-26 19:54:04,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-26 19:54:04,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2020-10-26 19:54:04,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-26 19:54:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 184 transitions. [2020-10-26 19:54:04,879 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 184 transitions. Word has length 172 [2020-10-26 19:54:04,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:54:04,879 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 184 transitions. [2020-10-26 19:54:04,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-26 19:54:04,879 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 184 transitions. [2020-10-26 19:54:04,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-26 19:54:04,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:54:04,880 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:54:04,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-26 19:54:04,881 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:54:04,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:54:04,881 INFO L82 PathProgramCache]: Analyzing trace with hash -554716396, now seen corresponding path program 28 times [2020-10-26 19:54:04,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:54:04,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148408494] [2020-10-26 19:54:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:54:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:04,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:06,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:06,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-26 19:54:06,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:06,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1307 [2020-10-26 19:54:06,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:06,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-26 19:54:06,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:54:06,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-26 19:54:06,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:06,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:54:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:06,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:06,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:06,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:54:06,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:06,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:54:06,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:54:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:54:06,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:06,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:54:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:06,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:06,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:06,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:06,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:06,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:06,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:06,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:06,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:06,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-26 19:54:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:06,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:06,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:06,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:06,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:06,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:06,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:06,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:06,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:06,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:06,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:06,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 19:54:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:06,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:06,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:06,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:06,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:06,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:06,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:06,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:06,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:06,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-26 19:54:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:06,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:06,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:06,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:06,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:06,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:06,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:06,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:06,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:06,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 19:54:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:06,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:06,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:06,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:06,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:06,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:54:06,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:06,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:06,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:06,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:06,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-26 19:54:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:06,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:06,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:06,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:06,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:06,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:06,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:06,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:06,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:06,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:06,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:06,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-26 19:54:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:06,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:06,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:06,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:06,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:06,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:06,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:06,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:06,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-26 19:54:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:06,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:06,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:06,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:06,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:06,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:06,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:06,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:06,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-26 19:54:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:07,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:07,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:07,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:07,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:07,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:54:07,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:07,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:07,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:07,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:07,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:07,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-26 19:54:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:07,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:07,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:07,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:07,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:07,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:07,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:07,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:07,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:07,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:07,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:07,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 19:54:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:07,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:07,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:07,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:07,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:07,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:07,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:07,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:07,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:07,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:07,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:07,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-26 19:54:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:07,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:07,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:07,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:07,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:07,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:07,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:07,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:07,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-26 19:54:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:07,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:07,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:07,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:07,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:07,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:54:07,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:07,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:07,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:07,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:07,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:07,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-26 19:54:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:07,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:07,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:07,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:07,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:07,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:54:07,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:07,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:07,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:07,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:07,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:07,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-26 19:54:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:07,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:07,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:07,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:07,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:07,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:07,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:07,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:07,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 480 proven. 330 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-26 19:54:07,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148408494] [2020-10-26 19:54:07,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:54:07,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-26 19:54:07,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093004367] [2020-10-26 19:54:07,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-26 19:54:07,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:54:07,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-26 19:54:07,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2020-10-26 19:54:07,081 INFO L87 Difference]: Start difference. First operand 183 states and 184 transitions. Second operand 36 states. [2020-10-26 19:54:08,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:54:08,659 INFO L93 Difference]: Finished difference Result 327 states and 330 transitions. [2020-10-26 19:54:08,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-26 19:54:08,660 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 180 [2020-10-26 19:54:08,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:54:08,662 INFO L225 Difference]: With dead ends: 327 [2020-10-26 19:54:08,663 INFO L226 Difference]: Without dead ends: 194 [2020-10-26 19:54:08,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=633, Invalid=2123, Unknown=0, NotChecked=0, Total=2756 [2020-10-26 19:54:08,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-26 19:54:08,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 186. [2020-10-26 19:54:08,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-26 19:54:08,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 187 transitions. [2020-10-26 19:54:08,684 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 187 transitions. Word has length 180 [2020-10-26 19:54:08,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:54:08,684 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 187 transitions. [2020-10-26 19:54:08,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-26 19:54:08,685 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 187 transitions. [2020-10-26 19:54:08,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-26 19:54:08,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:54:08,686 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:54:08,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-26 19:54:08,686 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:54:08,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:54:08,687 INFO L82 PathProgramCache]: Analyzing trace with hash 2083575796, now seen corresponding path program 29 times [2020-10-26 19:54:08,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:54:08,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374006341] [2020-10-26 19:54:08,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:54:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:08,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:10,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:10,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-26 19:54:10,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:10,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1606 [2020-10-26 19:54:10,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:10,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-26 19:54:10,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:54:10,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-10-26 19:54:10,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:54:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:54:11,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:54:11,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:54:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:54:11,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-26 19:54:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 19:54:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-26 19:54:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 19:54:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-26 19:54:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-26 19:54:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-26 19:54:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-26 19:54:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 19:54:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-26 19:54:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-26 19:54:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-26 19:54:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-26 19:54:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-26 19:54:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:11,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-26 19:54:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:11,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:11,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:11,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:11,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:11,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:11,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:11,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:11,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:11,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:11,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:12,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1276 backedges. 30 proven. 826 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-26 19:54:12,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374006341] [2020-10-26 19:54:12,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:54:12,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-26 19:54:12,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166623503] [2020-10-26 19:54:12,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-26 19:54:12,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:54:12,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-26 19:54:12,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-10-26 19:54:12,009 INFO L87 Difference]: Start difference. First operand 186 states and 187 transitions. Second operand 39 states. [2020-10-26 19:54:17,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:54:17,876 INFO L93 Difference]: Finished difference Result 201 states and 202 transitions. [2020-10-26 19:54:17,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-10-26 19:54:17,877 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 183 [2020-10-26 19:54:17,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:54:17,879 INFO L225 Difference]: With dead ends: 201 [2020-10-26 19:54:17,879 INFO L226 Difference]: Without dead ends: 198 [2020-10-26 19:54:17,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=243, Invalid=5307, Unknown=0, NotChecked=0, Total=5550 [2020-10-26 19:54:17,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-26 19:54:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 194. [2020-10-26 19:54:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-26 19:54:17,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 195 transitions. [2020-10-26 19:54:17,913 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 195 transitions. Word has length 183 [2020-10-26 19:54:17,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:54:17,914 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 195 transitions. [2020-10-26 19:54:17,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-26 19:54:17,914 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 195 transitions. [2020-10-26 19:54:17,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-26 19:54:17,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:54:17,916 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:54:17,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-26 19:54:17,916 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:54:17,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:54:17,917 INFO L82 PathProgramCache]: Analyzing trace with hash 2035001757, now seen corresponding path program 30 times [2020-10-26 19:54:17,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:54:17,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047906793] [2020-10-26 19:54:17,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:54:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:17,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:19,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:19,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-26 19:54:19,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:19,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1776 [2020-10-26 19:54:19,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-26 19:54:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:54:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-26 19:54:19,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:54:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:54:20,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:54:20,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:54:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:54:20,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-26 19:54:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:20,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 19:54:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-26 19:54:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 19:54:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-26 19:54:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-26 19:54:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-26 19:54:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-26 19:54:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 19:54:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-26 19:54:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-26 19:54:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-26 19:54:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-26 19:54:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-26 19:54:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:20,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-26 19:54:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:20,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-26 19:54:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:20,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:20,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:20,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:20,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:20,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:20,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:20,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:20,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:20,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:20,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 544 proven. 376 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-26 19:54:20,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047906793] [2020-10-26 19:54:20,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:54:20,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-26 19:54:20,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414624206] [2020-10-26 19:54:20,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-26 19:54:20,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:54:20,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-26 19:54:20,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2020-10-26 19:54:20,736 INFO L87 Difference]: Start difference. First operand 194 states and 195 transitions. Second operand 38 states. [2020-10-26 19:54:22,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:54:22,588 INFO L93 Difference]: Finished difference Result 346 states and 349 transitions. [2020-10-26 19:54:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-26 19:54:22,589 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 191 [2020-10-26 19:54:22,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:54:22,590 INFO L225 Difference]: With dead ends: 346 [2020-10-26 19:54:22,591 INFO L226 Difference]: Without dead ends: 205 [2020-10-26 19:54:22,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=706, Invalid=2374, Unknown=0, NotChecked=0, Total=3080 [2020-10-26 19:54:22,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-26 19:54:22,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 197. [2020-10-26 19:54:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-26 19:54:22,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 198 transitions. [2020-10-26 19:54:22,611 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 198 transitions. Word has length 191 [2020-10-26 19:54:22,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:54:22,611 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 198 transitions. [2020-10-26 19:54:22,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-26 19:54:22,611 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 198 transitions. [2020-10-26 19:54:22,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-26 19:54:22,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:54:22,612 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:54:22,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-26 19:54:22,613 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:54:22,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:54:22,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1880930493, now seen corresponding path program 31 times [2020-10-26 19:54:22,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:54:22,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349648115] [2020-10-26 19:54:22,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:54:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:22,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:24,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:24,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-26 19:54:24,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:24,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1847 [2020-10-26 19:54:24,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:24,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-26 19:54:24,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:54:24,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-26 19:54:24,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:54:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:54:26,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:54:26,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:54:26,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:54:26,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:54:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:26,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-26 19:54:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:26,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:54:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:26,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:54:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:26,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:54:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:26,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 19:54:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:26,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-26 19:54:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:26,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 19:54:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:26,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-26 19:54:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:26,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-26 19:54:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:26,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-26 19:54:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:26,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-26 19:54:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:26,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-26 19:54:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:26,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-26 19:54:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 19:54:26,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-26 19:54:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:26,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-26 19:54:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:26,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:26,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:26,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:26,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:26,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:26,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:26,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:26,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:26,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:26,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1449 backedges. 32 proven. 937 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-26 19:54:26,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349648115] [2020-10-26 19:54:26,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:54:26,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-26 19:54:26,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349348660] [2020-10-26 19:54:26,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-26 19:54:26,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:54:26,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-26 19:54:26,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-10-26 19:54:26,291 INFO L87 Difference]: Start difference. First operand 197 states and 198 transitions. Second operand 41 states. [2020-10-26 19:54:32,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:54:32,880 INFO L93 Difference]: Finished difference Result 212 states and 213 transitions. [2020-10-26 19:54:32,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-26 19:54:32,881 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 194 [2020-10-26 19:54:32,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:54:32,883 INFO L225 Difference]: With dead ends: 212 [2020-10-26 19:54:32,883 INFO L226 Difference]: Without dead ends: 209 [2020-10-26 19:54:32,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=256, Invalid=5906, Unknown=0, NotChecked=0, Total=6162 [2020-10-26 19:54:32,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-26 19:54:32,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 205. [2020-10-26 19:54:32,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-26 19:54:32,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 206 transitions. [2020-10-26 19:54:32,905 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 206 transitions. Word has length 194 [2020-10-26 19:54:32,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:54:32,905 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 206 transitions. [2020-10-26 19:54:32,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-26 19:54:32,906 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 206 transitions. [2020-10-26 19:54:32,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-26 19:54:32,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:54:32,907 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:54:32,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-26 19:54:32,907 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:54:32,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:54:32,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1659719322, now seen corresponding path program 32 times [2020-10-26 19:54:32,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:54:32,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826990713] [2020-10-26 19:54:32,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:54:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:32,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:34,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:34,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-26 19:54:34,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:34,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2026 [2020-10-26 19:54:34,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-26 19:54:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:54:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 225 [2020-10-26 19:54:34,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:54:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:54:36,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:54:36,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:54:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:54:36,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:54:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:36,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-26 19:54:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:36,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:54:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:36,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:54:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:36,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:54:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:36,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 19:54:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:36,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-26 19:54:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:36,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 19:54:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:36,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-26 19:54:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:36,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-26 19:54:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:36,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-26 19:54:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:36,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-26 19:54:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:36,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-26 19:54:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:36,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-26 19:54:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:36,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-26 19:54:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:36,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-26 19:54:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:36,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-26 19:54:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:36,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:36,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:36,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:36,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:36,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:36,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:36,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:36,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:36,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:36,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:36,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1581 backedges. 547 proven. 490 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-26 19:54:36,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826990713] [2020-10-26 19:54:36,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:54:36,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-26 19:54:36,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367179284] [2020-10-26 19:54:36,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-26 19:54:36,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:54:36,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-26 19:54:36,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=1175, Unknown=0, NotChecked=0, Total=1560 [2020-10-26 19:54:36,154 INFO L87 Difference]: Start difference. First operand 205 states and 206 transitions. Second operand 40 states. [2020-10-26 19:54:37,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:54:37,991 INFO L93 Difference]: Finished difference Result 365 states and 368 transitions. [2020-10-26 19:54:37,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-26 19:54:37,992 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 202 [2020-10-26 19:54:37,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:54:37,995 INFO L225 Difference]: With dead ends: 365 [2020-10-26 19:54:37,995 INFO L226 Difference]: Without dead ends: 216 [2020-10-26 19:54:37,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=746, Invalid=2560, Unknown=0, NotChecked=0, Total=3306 [2020-10-26 19:54:37,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-10-26 19:54:38,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 208. [2020-10-26 19:54:38,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-26 19:54:38,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 209 transitions. [2020-10-26 19:54:38,020 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 209 transitions. Word has length 202 [2020-10-26 19:54:38,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:54:38,020 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 209 transitions. [2020-10-26 19:54:38,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-26 19:54:38,021 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 209 transitions. [2020-10-26 19:54:38,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-26 19:54:38,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:54:38,022 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:54:38,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-26 19:54:38,022 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:54:38,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:54:38,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1216802374, now seen corresponding path program 33 times [2020-10-26 19:54:38,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:54:38,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529858044] [2020-10-26 19:54:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:54:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:38,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:40,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:40,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-26 19:54:40,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:40,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2275 [2020-10-26 19:54:40,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:40,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-26 19:54:40,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:54:40,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 233 [2020-10-26 19:54:40,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:54:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:54:42,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:54:42,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:54:42,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:54:42,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 19:54:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:42,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-26 19:54:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:42,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-26 19:54:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:42,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-26 19:54:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:42,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-26 19:54:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:42,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-26 19:54:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:42,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-26 19:54:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:42,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-26 19:54:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:42,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 19:54:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:42,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-26 19:54:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:42,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-26 19:54:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:42,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-26 19:54:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:42,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-26 19:54:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:42,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-26 19:54:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:42,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-26 19:54:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:42,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-26 19:54:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:42,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-26 19:54:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:42,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:42,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:42,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:42,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:42,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:42,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:42,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:42,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:42,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:42,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:42,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1633 backedges. 34 proven. 1055 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-26 19:54:42,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529858044] [2020-10-26 19:54:42,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:54:42,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-10-26 19:54:42,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088900283] [2020-10-26 19:54:42,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-10-26 19:54:42,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:54:42,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-10-26 19:54:42,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2020-10-26 19:54:42,304 INFO L87 Difference]: Start difference. First operand 208 states and 209 transitions. Second operand 43 states. [2020-10-26 19:54:49,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:54:49,564 INFO L93 Difference]: Finished difference Result 223 states and 224 transitions. [2020-10-26 19:54:49,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-26 19:54:49,564 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 205 [2020-10-26 19:54:49,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:54:49,567 INFO L225 Difference]: With dead ends: 223 [2020-10-26 19:54:49,567 INFO L226 Difference]: Without dead ends: 220 [2020-10-26 19:54:49,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=264, Invalid=6378, Unknown=0, NotChecked=0, Total=6642 [2020-10-26 19:54:49,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-26 19:54:49,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 216. [2020-10-26 19:54:49,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-10-26 19:54:49,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 217 transitions. [2020-10-26 19:54:49,593 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 217 transitions. Word has length 205 [2020-10-26 19:54:49,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:54:49,593 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 217 transitions. [2020-10-26 19:54:49,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-10-26 19:54:49,593 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 217 transitions. [2020-10-26 19:54:49,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-26 19:54:49,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:54:49,595 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:54:49,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-26 19:54:49,595 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:54:49,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:54:49,596 INFO L82 PathProgramCache]: Analyzing trace with hash -283685393, now seen corresponding path program 34 times [2020-10-26 19:54:49,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:54:49,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645023092] [2020-10-26 19:54:49,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:54:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:49,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:51,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:51,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-26 19:54:51,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:51,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2145 [2020-10-26 19:54:51,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:51,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-26 19:54:51,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:54:51,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 238 [2020-10-26 19:54:51,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:52,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:54:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:52,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:52,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:52,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:54:52,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:52,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:54:52,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:54:52,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:52,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:54:52,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:52,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 19:54:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:52,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:52,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:52,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:52,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:52,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:52,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:52,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:52,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-26 19:54:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:52,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:52,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:52,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:52,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:52,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:52,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:52,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:52,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:52,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:52,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:52,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-26 19:54:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:52,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:52,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:52,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:52,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:52,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:52,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:52,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:52,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:52,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:52,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-26 19:54:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:52,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:52,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:52,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:52,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:52,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:52,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:52,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-26 19:54:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:52,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:52,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:52,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:52,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:52,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:52,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:52,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:52,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:52,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:52,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:52,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-26 19:54:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:52,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:52,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:52,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:52,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:52,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:52,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:52,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:52,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-26 19:54:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:52,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:52,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:52,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:52,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:52,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:52,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:52,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-26 19:54:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:52,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:52,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:52,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:52,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:52,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:52,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:52,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:52,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:52,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:52,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 19:54:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:53,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:53,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:53,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:53,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:53,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:53,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:53,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:53,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:53,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:53,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:53,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-26 19:54:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:53,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:53,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:53,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:53,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:53,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:53,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:53,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:53,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:53,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:53,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:53,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-26 19:54:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:53,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:53,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:53,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:53,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:53,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:53,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:53,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:53,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-26 19:54:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:53,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:53,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:53,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:53,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:53,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:53,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:53,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:53,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-26 19:54:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:53,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:53,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:53,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:53,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:53,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:53,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:53,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:53,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:53,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-26 19:54:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:53,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:53,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:53,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:53,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:53,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:53,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:53,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:53,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:53,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:53,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:53,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-26 19:54:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:53,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:53,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:53,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:53,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:53,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:53,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:53,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:53,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:53,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:53,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:53,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-26 19:54:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:53,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:53,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:53,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:53,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:53,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:53,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:53,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:53,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:53,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:53,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:53,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-26 19:54:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:53,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:53,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:53,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:53,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:53,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:53,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:53,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:53,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:53,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:53,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:53,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-26 19:54:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:53,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:53,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:53,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:53,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:53,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:53,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:53,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:53,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:53,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:53,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1773 backedges. 684 proven. 477 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-10-26 19:54:53,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645023092] [2020-10-26 19:54:53,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:54:53,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-26 19:54:53,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043159397] [2020-10-26 19:54:53,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-26 19:54:53,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:54:53,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-26 19:54:53,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=1299, Unknown=0, NotChecked=0, Total=1722 [2020-10-26 19:54:53,079 INFO L87 Difference]: Start difference. First operand 216 states and 217 transitions. Second operand 42 states. [2020-10-26 19:54:55,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:54:55,275 INFO L93 Difference]: Finished difference Result 384 states and 387 transitions. [2020-10-26 19:54:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-26 19:54:55,276 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 213 [2020-10-26 19:54:55,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:54:55,279 INFO L225 Difference]: With dead ends: 384 [2020-10-26 19:54:55,279 INFO L226 Difference]: Without dead ends: 227 [2020-10-26 19:54:55,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=864, Invalid=2918, Unknown=0, NotChecked=0, Total=3782 [2020-10-26 19:54:55,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-10-26 19:54:55,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 219. [2020-10-26 19:54:55,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-10-26 19:54:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 220 transitions. [2020-10-26 19:54:55,316 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 220 transitions. Word has length 213 [2020-10-26 19:54:55,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:54:55,317 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 220 transitions. [2020-10-26 19:54:55,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-26 19:54:55,317 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 220 transitions. [2020-10-26 19:54:55,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-26 19:54:55,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:54:55,318 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:54:55,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-26 19:54:55,319 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:54:55,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:54:55,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1319746289, now seen corresponding path program 35 times [2020-10-26 19:54:55,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:54:55,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199021549] [2020-10-26 19:54:55,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:54:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:55,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:57,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:57,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-10-26 19:54:57,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:57,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1983 [2020-10-26 19:54:57,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:57,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-26 19:54:57,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:54:57,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 246 [2020-10-26 19:54:57,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:54:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:54:59,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:54:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:54:59,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:54:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:59,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:54:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:59,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-26 19:54:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:59,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-26 19:54:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:54:59,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-26 19:54:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 19:54:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-26 19:54:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 19:54:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-26 19:54:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 19:54:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-26 19:54:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 19:54:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-26 19:54:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-26 19:54:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 19:54:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-26 19:54:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 19:54:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-26 19:54:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:54:59,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:54:59,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:54:59,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:54:59,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:54:59,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:54:59,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:54:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:54:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:54:59,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:54:59,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:54:59,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1828 backedges. 36 proven. 1180 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-10-26 19:54:59,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199021549] [2020-10-26 19:54:59,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:54:59,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-10-26 19:54:59,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462670455] [2020-10-26 19:54:59,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-10-26 19:54:59,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:54:59,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-10-26 19:54:59,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2020-10-26 19:54:59,656 INFO L87 Difference]: Start difference. First operand 219 states and 220 transitions. Second operand 45 states. [2020-10-26 19:55:07,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:07,958 INFO L93 Difference]: Finished difference Result 234 states and 235 transitions. [2020-10-26 19:55:07,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-26 19:55:07,959 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 216 [2020-10-26 19:55:07,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:07,961 INFO L225 Difference]: With dead ends: 234 [2020-10-26 19:55:07,962 INFO L226 Difference]: Without dead ends: 231 [2020-10-26 19:55:07,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=282, Invalid=7200, Unknown=0, NotChecked=0, Total=7482 [2020-10-26 19:55:07,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-26 19:55:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 227. [2020-10-26 19:55:07,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-26 19:55:07,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 228 transitions. [2020-10-26 19:55:07,988 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 228 transitions. Word has length 216 [2020-10-26 19:55:07,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:07,989 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 228 transitions. [2020-10-26 19:55:07,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-10-26 19:55:07,989 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 228 transitions. [2020-10-26 19:55:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-26 19:55:07,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:07,991 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:07,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-26 19:55:07,991 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:07,992 INFO L82 PathProgramCache]: Analyzing trace with hash 2146159544, now seen corresponding path program 36 times [2020-10-26 19:55:07,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:07,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700712921] [2020-10-26 19:55:07,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:08,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:10,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:10,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-26 19:55:10,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:10,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2126 [2020-10-26 19:55:10,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:10,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-26 19:55:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-26 19:55:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:11,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:11,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:11,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:11,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:55:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:11,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:55:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:11,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-26 19:55:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:11,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-26 19:55:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:11,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-26 19:55:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:11,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 19:55:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:11,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-26 19:55:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 19:55:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-26 19:55:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 19:55:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-26 19:55:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 19:55:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-26 19:55:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-26 19:55:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 19:55:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-26 19:55:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 19:55:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-26 19:55:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-26 19:55:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:11,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:11,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:11,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:11,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:11,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:11,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:11,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:11,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:11,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:11,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:11,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1976 backedges. 760 proven. 532 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-26 19:55:11,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700712921] [2020-10-26 19:55:11,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:11,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-26 19:55:11,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814761754] [2020-10-26 19:55:11,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-26 19:55:11,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:11,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-26 19:55:11,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=1427, Unknown=0, NotChecked=0, Total=1892 [2020-10-26 19:55:11,621 INFO L87 Difference]: Start difference. First operand 227 states and 228 transitions. Second operand 44 states. [2020-10-26 19:55:14,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:14,092 INFO L93 Difference]: Finished difference Result 403 states and 406 transitions. [2020-10-26 19:55:14,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-26 19:55:14,093 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 224 [2020-10-26 19:55:14,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:14,096 INFO L225 Difference]: With dead ends: 403 [2020-10-26 19:55:14,096 INFO L226 Difference]: Without dead ends: 238 [2020-10-26 19:55:14,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=949, Invalid=3211, Unknown=0, NotChecked=0, Total=4160 [2020-10-26 19:55:14,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-26 19:55:14,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 230. [2020-10-26 19:55:14,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-26 19:55:14,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 231 transitions. [2020-10-26 19:55:14,134 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 231 transitions. Word has length 224 [2020-10-26 19:55:14,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:14,135 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 231 transitions. [2020-10-26 19:55:14,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-26 19:55:14,135 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 231 transitions. [2020-10-26 19:55:14,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-26 19:55:14,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:14,136 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:14,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-26 19:55:14,136 INFO L429 AbstractCegarLoop]: === Iteration 42 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:14,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:14,137 INFO L82 PathProgramCache]: Analyzing trace with hash -407822184, now seen corresponding path program 37 times [2020-10-26 19:55:14,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:14,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072958646] [2020-10-26 19:55:14,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:14,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:16,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:16,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-26 19:55:16,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:16,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2197 [2020-10-26 19:55:16,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-26 19:55:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 259 [2020-10-26 19:55:16,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:18,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:18,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:18,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-26 19:55:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:18,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 19:55:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:18,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-26 19:55:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:18,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-26 19:55:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:18,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-26 19:55:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:18,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-26 19:55:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:18,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 19:55:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:18,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-26 19:55:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:18,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-26 19:55:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:18,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 19:55:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:18,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 19:55:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:18,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-26 19:55:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:18,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-26 19:55:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:18,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-26 19:55:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:18,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-26 19:55:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:18,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-26 19:55:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:18,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-26 19:55:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:18,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-26 19:55:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:18,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-26 19:55:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:18,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 38 proven. 1312 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-26 19:55:18,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072958646] [2020-10-26 19:55:18,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:18,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2020-10-26 19:55:18,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077564687] [2020-10-26 19:55:18,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-10-26 19:55:18,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:18,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-10-26 19:55:18,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=2069, Unknown=0, NotChecked=0, Total=2162 [2020-10-26 19:55:18,773 INFO L87 Difference]: Start difference. First operand 230 states and 231 transitions. Second operand 47 states. [2020-10-26 19:55:27,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:27,805 INFO L93 Difference]: Finished difference Result 245 states and 246 transitions. [2020-10-26 19:55:27,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-26 19:55:27,806 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 227 [2020-10-26 19:55:27,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:27,809 INFO L225 Difference]: With dead ends: 245 [2020-10-26 19:55:27,809 INFO L226 Difference]: Without dead ends: 242 [2020-10-26 19:55:27,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=292, Invalid=7718, Unknown=0, NotChecked=0, Total=8010 [2020-10-26 19:55:27,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-26 19:55:27,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 238. [2020-10-26 19:55:27,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-26 19:55:27,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 239 transitions. [2020-10-26 19:55:27,831 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 239 transitions. Word has length 227 [2020-10-26 19:55:27,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:27,831 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 239 transitions. [2020-10-26 19:55:27,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-10-26 19:55:27,832 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 239 transitions. [2020-10-26 19:55:27,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-26 19:55:27,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:27,833 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:27,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-26 19:55:27,834 INFO L429 AbstractCegarLoop]: === Iteration 43 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:27,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:27,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1613033919, now seen corresponding path program 38 times [2020-10-26 19:55:27,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:27,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327290455] [2020-10-26 19:55:27,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:27,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:30,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:30,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-26 19:55:30,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:30,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2323 [2020-10-26 19:55:30,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-26 19:55:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 264 [2020-10-26 19:55:30,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:31,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:31,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:31,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-26 19:55:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 19:55:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:31,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-26 19:55:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-26 19:55:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-26 19:55:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-26 19:55:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 19:55:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-26 19:55:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-26 19:55:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 19:55:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 19:55:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-26 19:55:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-26 19:55:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:31,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-26 19:55:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:31,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-26 19:55:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:31,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-26 19:55:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-26 19:55:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-26 19:55:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-26 19:55:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-26 19:55:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:31,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:31,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:31,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:31,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:31,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:31,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:31,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:31,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:31,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:31,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2190 backedges. 840 proven. 590 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-10-26 19:55:31,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327290455] [2020-10-26 19:55:31,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:31,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-26 19:55:31,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289734361] [2020-10-26 19:55:31,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-26 19:55:31,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:31,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-26 19:55:31,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2020-10-26 19:55:31,824 INFO L87 Difference]: Start difference. First operand 238 states and 239 transitions. Second operand 46 states. [2020-10-26 19:55:34,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:34,613 INFO L93 Difference]: Finished difference Result 422 states and 425 transitions. [2020-10-26 19:55:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-26 19:55:34,615 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 235 [2020-10-26 19:55:34,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:34,618 INFO L225 Difference]: With dead ends: 422 [2020-10-26 19:55:34,618 INFO L226 Difference]: Without dead ends: 249 [2020-10-26 19:55:34,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1038, Invalid=3518, Unknown=0, NotChecked=0, Total=4556 [2020-10-26 19:55:34,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-26 19:55:34,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 241. [2020-10-26 19:55:34,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-26 19:55:34,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 242 transitions. [2020-10-26 19:55:34,663 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 242 transitions. Word has length 235 [2020-10-26 19:55:34,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:34,663 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 242 transitions. [2020-10-26 19:55:34,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-26 19:55:34,663 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 242 transitions. [2020-10-26 19:55:34,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-26 19:55:34,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:34,665 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:34,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-26 19:55:34,665 INFO L429 AbstractCegarLoop]: === Iteration 44 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:34,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:34,666 INFO L82 PathProgramCache]: Analyzing trace with hash 548007265, now seen corresponding path program 39 times [2020-10-26 19:55:34,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:34,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485844400] [2020-10-26 19:55:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:34,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:37,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:37,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-26 19:55:37,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:37,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2804 [2020-10-26 19:55:37,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:37,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-26 19:55:37,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:37,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 272 [2020-10-26 19:55:37,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:40,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:40,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:40,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:40,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:55:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:55:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:40,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:55:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:55:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:55:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:55:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:55:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:55:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:55:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 19:55:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-26 19:55:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:40,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-26 19:55:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-26 19:55:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-26 19:55:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-26 19:55:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-26 19:55:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-10-26 19:55:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-26 19:55:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-26 19:55:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-26 19:55:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:40,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:40,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:40,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:40,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:40,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:40,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:40,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:40,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2251 backedges. 40 proven. 1451 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-10-26 19:55:40,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485844400] [2020-10-26 19:55:40,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:40,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2020-10-26 19:55:40,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726315041] [2020-10-26 19:55:40,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-10-26 19:55:40,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:40,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-10-26 19:55:40,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=2257, Unknown=0, NotChecked=0, Total=2352 [2020-10-26 19:55:40,295 INFO L87 Difference]: Start difference. First operand 241 states and 242 transitions. Second operand 49 states. [2020-10-26 19:55:50,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:50,356 INFO L93 Difference]: Finished difference Result 256 states and 257 transitions. [2020-10-26 19:55:50,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-26 19:55:50,357 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 238 [2020-10-26 19:55:50,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:50,359 INFO L225 Difference]: With dead ends: 256 [2020-10-26 19:55:50,359 INFO L226 Difference]: Without dead ends: 253 [2020-10-26 19:55:50,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=308, Invalid=8622, Unknown=0, NotChecked=0, Total=8930 [2020-10-26 19:55:50,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-26 19:55:50,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 249. [2020-10-26 19:55:50,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-26 19:55:50,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 250 transitions. [2020-10-26 19:55:50,386 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 250 transitions. Word has length 238 [2020-10-26 19:55:50,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:50,386 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 250 transitions. [2020-10-26 19:55:50,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-10-26 19:55:50,386 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 250 transitions. [2020-10-26 19:55:50,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-26 19:55:50,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:50,388 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:50,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-26 19:55:50,388 INFO L429 AbstractCegarLoop]: === Iteration 45 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:50,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:50,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1392706058, now seen corresponding path program 40 times [2020-10-26 19:55:50,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:50,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061704792] [2020-10-26 19:55:50,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:50,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:52,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:52,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-26 19:55:52,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2470 [2020-10-26 19:55:52,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-26 19:55:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-26 19:55:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:54,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:54,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:55:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:54,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:55:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:54,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:55:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:54,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-10-26 19:55:54,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:55:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:54,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:55:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:54,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:55:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:54,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:55:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:55:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:55:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 19:55:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-26 19:55:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-26 19:55:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-26 19:55:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-26 19:55:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-26 19:55:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:54,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-26 19:55:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-10-26 19:55:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:54,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-26 19:55:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-26 19:55:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-26 19:55:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-10-26 19:55:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:54,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:54,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:54,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:54,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:54,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:54,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:54,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 924 proven. 651 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-10-26 19:55:54,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061704792] [2020-10-26 19:55:54,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:54,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2020-10-26 19:55:54,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541918367] [2020-10-26 19:55:54,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-10-26 19:55:54,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:54,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-10-26 19:55:54,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=555, Invalid=1701, Unknown=0, NotChecked=0, Total=2256 [2020-10-26 19:55:54,813 INFO L87 Difference]: Start difference. First operand 249 states and 250 transitions. Second operand 48 states. [2020-10-26 19:55:57,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:57,514 INFO L93 Difference]: Finished difference Result 441 states and 444 transitions. [2020-10-26 19:55:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-10-26 19:55:57,516 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 246 [2020-10-26 19:55:57,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:57,518 INFO L225 Difference]: With dead ends: 441 [2020-10-26 19:55:57,518 INFO L226 Difference]: Without dead ends: 260 [2020-10-26 19:55:57,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1131, Invalid=3839, Unknown=0, NotChecked=0, Total=4970 [2020-10-26 19:55:57,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-26 19:55:57,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 252. [2020-10-26 19:55:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-26 19:55:57,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 253 transitions. [2020-10-26 19:55:57,549 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 253 transitions. Word has length 246 [2020-10-26 19:55:57,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:57,549 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 253 transitions. [2020-10-26 19:55:57,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-10-26 19:55:57,549 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 253 transitions. [2020-10-26 19:55:57,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-26 19:55:57,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:57,551 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:57,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-26 19:55:57,551 INFO L429 AbstractCegarLoop]: === Iteration 46 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:57,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:57,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1699254550, now seen corresponding path program 41 times [2020-10-26 19:55:57,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:57,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482144615] [2020-10-26 19:55:57,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:57,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:00,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:00,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 301 [2020-10-26 19:56:00,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:00,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3381 [2020-10-26 19:56:00,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-26 19:56:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:56:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-26 19:56:00,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:56:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:03,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:03,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:56:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:56:03,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-26 19:56:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-26 19:56:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:03,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-26 19:56:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:03,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 19:56:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:03,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-26 19:56:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:03,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-26 19:56:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:03,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 19:56:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-26 19:56:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-26 19:56:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-26 19:56:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-26 19:56:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-26 19:56:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-26 19:56:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-26 19:56:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-26 19:56:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:03,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-26 19:56:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-26 19:56:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-26 19:56:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-26 19:56:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-26 19:56:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:03,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:03,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-26 19:56:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:03,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:03,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:03,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:03,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:03,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:03,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:03,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:03,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:03,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:03,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2479 backedges. 42 proven. 1597 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-10-26 19:56:04,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482144615] [2020-10-26 19:56:04,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:56:04,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2020-10-26 19:56:04,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384283488] [2020-10-26 19:56:04,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-10-26 19:56:04,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:56:04,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-10-26 19:56:04,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=2451, Unknown=0, NotChecked=0, Total=2550 [2020-10-26 19:56:04,018 INFO L87 Difference]: Start difference. First operand 252 states and 253 transitions. Second operand 51 states.