/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-cav19/array_tripl_access_init_const.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 18:58:27,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 18:58:27,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 18:58:27,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 18:58:27,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 18:58:27,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 18:58:27,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 18:58:27,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 18:58:27,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 18:58:27,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 18:58:27,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 18:58:27,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 18:58:27,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 18:58:27,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 18:58:27,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 18:58:27,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 18:58:27,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 18:58:27,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 18:58:27,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 18:58:27,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 18:58:27,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 18:58:27,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 18:58:27,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 18:58:27,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 18:58:27,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 18:58:27,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 18:58:27,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 18:58:27,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 18:58:27,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 18:58:27,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 18:58:27,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 18:58:27,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 18:58:27,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 18:58:27,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 18:58:27,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 18:58:27,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 18:58:27,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 18:58:27,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 18:58:27,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 18:58:27,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 18:58:27,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 18:58:27,668 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 18:58:27,729 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 18:58:27,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 18:58:27,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 18:58:27,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 18:58:27,732 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 18:58:27,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 18:58:27,733 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 18:58:27,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 18:58:27,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 18:58:27,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 18:58:27,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 18:58:27,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 18:58:27,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 18:58:27,736 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 18:58:27,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 18:58:27,736 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 18:58:27,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 18:58:27,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 18:58:27,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 18:58:27,737 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 18:58:27,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 18:58:27,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 18:58:27,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 18:58:27,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 18:58:27,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 18:58:27,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 18:58:27,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 18:58:27,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 18:58:27,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 18:58:27,740 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 18:58:28,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 18:58:28,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 18:58:28,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 18:58:28,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 18:58:28,316 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 18:58:28,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-cav19/array_tripl_access_init_const.c [2020-10-26 18:58:28,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbd495c27/6d188ea5dae946f294f635cd6895a6ab/FLAGd526dea83 [2020-10-26 18:58:29,141 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 18:58:29,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-cav19/array_tripl_access_init_const.c [2020-10-26 18:58:29,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbd495c27/6d188ea5dae946f294f635cd6895a6ab/FLAGd526dea83 [2020-10-26 18:58:29,504 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbd495c27/6d188ea5dae946f294f635cd6895a6ab [2020-10-26 18:58:29,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 18:58:29,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 18:58:29,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 18:58:29,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 18:58:29,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 18:58:29,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33672ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29, skipping insertion in model container [2020-10-26 18:58:29,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 18:58:29,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 18:58:29,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 18:58:29,786 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 18:58:29,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 18:58:29,842 INFO L208 MainTranslator]: Completed translation [2020-10-26 18:58:29,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29 WrapperNode [2020-10-26 18:58:29,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 18:58:29,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 18:58:29,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 18:58:29,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 18:58:29,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 18:58:29,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 18:58:29,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 18:58:29,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 18:58:29,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 18:58:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 18:58:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 18:58:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 18:58:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-26 18:58:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-26 18:58:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 18:58:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 18:58:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 18:58:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 18:58:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 18:58:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-26 18:58:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-26 18:58:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 18:58:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 18:58:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 18:58:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 18:58:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 18:58:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 18:58:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 18:58:30,590 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 18:58:30,590 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-26 18:58:30,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:58:30 BoogieIcfgContainer [2020-10-26 18:58:30,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 18:58:30,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 18:58:30,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 18:58:30,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 18:58:30,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 06:58:29" (1/3) ... [2020-10-26 18:58:30,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6664ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 06:58:30, skipping insertion in model container [2020-10-26 18:58:30,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (2/3) ... [2020-10-26 18:58:30,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6664ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 06:58:30, skipping insertion in model container [2020-10-26 18:58:30,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:58:30" (3/3) ... [2020-10-26 18:58:30,603 INFO L111 eAbstractionObserver]: Analyzing ICFG array_tripl_access_init_const.c [2020-10-26 18:58:30,619 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 18:58:30,625 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 18:58:30,639 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 18:58:30,668 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 18:58:30,668 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 18:58:30,668 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 18:58:30,668 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 18:58:30,668 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 18:58:30,669 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 18:58:30,669 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 18:58:30,669 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 18:58:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-26 18:58:30,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-26 18:58:30,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:30,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:30,693 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:30,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:30,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1723569169, now seen corresponding path program 1 times [2020-10-26 18:58:30,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:30,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713825537] [2020-10-26 18:58:30,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:30,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:31,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:31,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 18:58:31,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:31,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-26 18:58:31,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 18:58:31,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 18:58:31,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:31,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:31,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:31,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:31,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:31,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 18:58:31,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:31,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:31,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:31,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:31,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:31,344 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 18:58:31,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713825537] [2020-10-26 18:58:31,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 18:58:31,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 18:58:31,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175743062] [2020-10-26 18:58:31,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 18:58:31,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:31,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 18:58:31,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 18:58:31,377 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2020-10-26 18:58:31,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:31,560 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2020-10-26 18:58:31,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 18:58:31,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-26 18:58:31,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:31,573 INFO L225 Difference]: With dead ends: 47 [2020-10-26 18:58:31,573 INFO L226 Difference]: Without dead ends: 22 [2020-10-26 18:58:31,577 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 18:58:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-26 18:58:31,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-10-26 18:58:31,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-26 18:58:31,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-26 18:58:31,623 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2020-10-26 18:58:31,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:31,623 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-26 18:58:31,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 18:58:31,624 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-26 18:58:31,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-26 18:58:31,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:31,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:31,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 18:58:31,625 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:31,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:31,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1613601485, now seen corresponding path program 1 times [2020-10-26 18:58:31,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:31,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146485392] [2020-10-26 18:58:31,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:31,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:31,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:32,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:32,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 18:58:32,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:32,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 821 [2020-10-26 18:58:32,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 18:58:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 18:58:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:58:32,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:32,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:32,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:32,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:32,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:32,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 18:58:32,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:32,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:32,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:32,642 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 18:58:32,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146485392] [2020-10-26 18:58:32,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:32,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 18:58:32,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153911855] [2020-10-26 18:58:32,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 18:58:32,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:32,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 18:58:32,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-26 18:58:32,647 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 9 states. [2020-10-26 18:58:32,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:32,967 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-10-26 18:58:32,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 18:58:32,969 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-26 18:58:32,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:32,970 INFO L225 Difference]: With dead ends: 33 [2020-10-26 18:58:32,970 INFO L226 Difference]: Without dead ends: 30 [2020-10-26 18:58:32,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-26 18:58:32,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-26 18:58:32,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-10-26 18:58:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-26 18:58:32,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-26 18:58:32,982 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2020-10-26 18:58:32,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:32,983 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-26 18:58:32,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 18:58:32,983 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-26 18:58:32,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-26 18:58:32,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:32,984 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:32,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 18:58:32,985 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:32,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:32,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1182044057, now seen corresponding path program 1 times [2020-10-26 18:58:32,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:32,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701032724] [2020-10-26 18:58:32,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:33,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:33,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:33,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:33,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-26 18:58:33,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:33,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 561 [2020-10-26 18:58:33,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 18:58:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 18:58:33,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:33,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:33,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:33,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:33,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:33,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:33,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 18:58:33,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:33,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:33,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-26 18:58:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:33,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:33,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:33,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:33,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:33,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 18:58:33,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:33,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:33,729 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 18:58:33,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701032724] [2020-10-26 18:58:33,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:33,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-26 18:58:33,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956733059] [2020-10-26 18:58:33,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 18:58:33,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:33,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 18:58:33,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-26 18:58:33,733 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2020-10-26 18:58:34,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:34,106 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2020-10-26 18:58:34,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 18:58:34,107 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-26 18:58:34,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:34,108 INFO L225 Difference]: With dead ends: 44 [2020-10-26 18:58:34,108 INFO L226 Difference]: Without dead ends: 41 [2020-10-26 18:58:34,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-10-26 18:58:34,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-26 18:58:34,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2020-10-26 18:58:34,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-26 18:58:34,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-26 18:58:34,119 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2020-10-26 18:58:34,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:34,120 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-26 18:58:34,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 18:58:34,120 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-26 18:58:34,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-26 18:58:34,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:34,122 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:34,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 18:58:34,122 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:34,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:34,123 INFO L82 PathProgramCache]: Analyzing trace with hash 2022765567, now seen corresponding path program 2 times [2020-10-26 18:58:34,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:34,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133530805] [2020-10-26 18:58:34,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:34,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:34,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:34,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:34,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 18:58:34,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:34,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-10-26 18:58:34,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:34,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-26 18:58:34,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:34,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-26 18:58:34,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:34,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:34,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:34,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:34,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:34,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:34,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 18:58:34,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:34,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:34,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:34,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:34,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:58:34,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-26 18:58:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:34,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:34,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:34,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:34,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:34,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:34,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:34,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:34,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:34,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:34,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:58:34,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 18:58:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:34,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:34,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:34,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:34,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:34,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 18:58:34,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:34,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:34,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:34,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:34,805 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 18:58:34,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133530805] [2020-10-26 18:58:34,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:34,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 18:58:34,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407020804] [2020-10-26 18:58:34,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 18:58:34,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:34,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 18:58:34,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 18:58:34,811 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 5 states. [2020-10-26 18:58:34,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:34,937 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2020-10-26 18:58:34,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 18:58:34,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-26 18:58:34,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:34,944 INFO L225 Difference]: With dead ends: 64 [2020-10-26 18:58:34,945 INFO L226 Difference]: Without dead ends: 38 [2020-10-26 18:58:34,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 18:58:34,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-26 18:58:34,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-10-26 18:58:34,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-26 18:58:34,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-10-26 18:58:34,977 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 32 [2020-10-26 18:58:34,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:34,977 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-10-26 18:58:34,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 18:58:34,977 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-10-26 18:58:34,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-26 18:58:34,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:34,979 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:34,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 18:58:34,979 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:34,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:34,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1117159585, now seen corresponding path program 3 times [2020-10-26 18:58:34,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:34,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797366682] [2020-10-26 18:58:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:35,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:35,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:35,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:35,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-26 18:58:35,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:35,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-10-26 18:58:35,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 18:58:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:35,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:35,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:35,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:35,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:35,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:35,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:35,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 18:58:35,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:35,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:35,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:35,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-26 18:58:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:35,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:35,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:35,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:35,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:35,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:35,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:35,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:35,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 18:58:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:35,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:35,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:35,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:35,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:35,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:58:35,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:35,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:35,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:35,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:35,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 18:58:35,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797366682] [2020-10-26 18:58:35,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:35,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 18:58:35,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120276275] [2020-10-26 18:58:35,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 18:58:35,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:35,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 18:58:35,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 18:58:35,897 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 6 states. [2020-10-26 18:58:36,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:36,004 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2020-10-26 18:58:36,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 18:58:36,005 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-10-26 18:58:36,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:36,006 INFO L225 Difference]: With dead ends: 66 [2020-10-26 18:58:36,006 INFO L226 Difference]: Without dead ends: 40 [2020-10-26 18:58:36,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 18:58:36,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-26 18:58:36,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2020-10-26 18:58:36,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-26 18:58:36,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-26 18:58:36,017 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 34 [2020-10-26 18:58:36,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:36,017 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-26 18:58:36,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 18:58:36,018 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-26 18:58:36,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-26 18:58:36,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:36,019 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:36,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 18:58:36,020 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:36,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:36,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1586795325, now seen corresponding path program 4 times [2020-10-26 18:58:36,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:36,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573130529] [2020-10-26 18:58:36,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:36,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:36,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:36,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:36,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 18:58:36,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:36,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 708 [2020-10-26 18:58:36,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 18:58:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 18:58:36,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:36,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:36,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:36,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:36,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:36,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:36,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 18:58:36,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:36,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:36,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:36,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:36,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 18:58:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:36,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:36,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:36,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:36,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:58:36,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:58:36,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-26 18:58:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:36,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:36,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:36,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:36,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:36,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:58:36,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:36,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:36,867 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 18:58:36,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573130529] [2020-10-26 18:58:36,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:36,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 18:58:36,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757753165] [2020-10-26 18:58:36,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 18:58:36,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:36,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 18:58:36,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 18:58:36,870 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 7 states. [2020-10-26 18:58:36,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:36,980 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2020-10-26 18:58:36,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 18:58:36,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-10-26 18:58:36,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:36,982 INFO L225 Difference]: With dead ends: 68 [2020-10-26 18:58:36,982 INFO L226 Difference]: Without dead ends: 42 [2020-10-26 18:58:36,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 18:58:36,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-26 18:58:36,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-10-26 18:58:36,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-26 18:58:36,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-26 18:58:36,991 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 36 [2020-10-26 18:58:36,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:36,992 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-26 18:58:36,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 18:58:36,992 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-26 18:58:36,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-26 18:58:36,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:36,993 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:36,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 18:58:36,994 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:36,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:36,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1632249755, now seen corresponding path program 5 times [2020-10-26 18:58:36,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:36,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6704801] [2020-10-26 18:58:36,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:37,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:37,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:38,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:38,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 18:58:38,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:38,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1203 [2020-10-26 18:58:38,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:38,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 18:58:38,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:38,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 18:58:38,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:58:38,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:38,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:38,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:38,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:38,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:38,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 18:58:38,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:38,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:38,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:38,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 18:58:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:38,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:38,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:38,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:38,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:38,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:58:38,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:38,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:38,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:38,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:38,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:58:38,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-26 18:58:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:38,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:38,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:38,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:38,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:38,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:58:38,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:38,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:38,363 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 18:58:38,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6704801] [2020-10-26 18:58:38,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:38,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 18:58:38,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239008822] [2020-10-26 18:58:38,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 18:58:38,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:38,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 18:58:38,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 18:58:38,368 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2020-10-26 18:58:38,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:38,509 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-10-26 18:58:38,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 18:58:38,509 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-10-26 18:58:38,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:38,511 INFO L225 Difference]: With dead ends: 70 [2020-10-26 18:58:38,512 INFO L226 Difference]: Without dead ends: 44 [2020-10-26 18:58:38,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 18:58:38,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-26 18:58:38,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2020-10-26 18:58:38,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-26 18:58:38,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-10-26 18:58:38,527 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 38 [2020-10-26 18:58:38,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:38,529 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-10-26 18:58:38,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 18:58:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-10-26 18:58:38,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-26 18:58:38,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:38,533 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:38,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 18:58:38,533 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:38,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:38,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1930683271, now seen corresponding path program 6 times [2020-10-26 18:58:38,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:38,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394486398] [2020-10-26 18:58:38,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:38,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:38,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:39,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:39,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-26 18:58:39,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:39,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1411 [2020-10-26 18:58:39,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 18:58:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 18:58:39,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:40,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:40,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:40,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:40,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:40,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:40,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 18:58:40,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:40,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:40,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:40,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:40,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:58:40,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 18:58:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:40,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:40,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:40,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:40,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:40,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:40,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:40,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:40,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 18:58:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:40,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:40,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:40,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:40,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:40,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 18:58:40,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:40,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:40,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:40,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:40,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-26 18:58:40,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394486398] [2020-10-26 18:58:40,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:40,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-26 18:58:40,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530039100] [2020-10-26 18:58:40,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 18:58:40,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:40,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 18:58:40,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-26 18:58:40,213 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 11 states. [2020-10-26 18:58:40,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:40,703 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-10-26 18:58:40,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 18:58:40,703 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2020-10-26 18:58:40,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:40,705 INFO L225 Difference]: With dead ends: 56 [2020-10-26 18:58:40,705 INFO L226 Difference]: Without dead ends: 53 [2020-10-26 18:58:40,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-10-26 18:58:40,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-26 18:58:40,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2020-10-26 18:58:40,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-26 18:58:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-26 18:58:40,715 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 40 [2020-10-26 18:58:40,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:40,715 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-26 18:58:40,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 18:58:40,715 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-26 18:58:40,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-26 18:58:40,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:40,716 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:40,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 18:58:40,717 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:40,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:40,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1647543827, now seen corresponding path program 7 times [2020-10-26 18:58:40,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:40,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893633603] [2020-10-26 18:58:40,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:40,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:40,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:42,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:42,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 18:58:42,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:42,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1596 [2020-10-26 18:58:42,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:42,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 18:58:42,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:42,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-26 18:58:42,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:42,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:42,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:42,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:42,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:42,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:42,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 18:58:42,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:42,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:42,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:42,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:42,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:42,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 18:58:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:42,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:42,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:42,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:42,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:42,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 18:58:42,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:42,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:42,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:42,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:42,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:42,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 18:58:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:42,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:42,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:42,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:42,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:42,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:42,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:42,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:42,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:42,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:42,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:42,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 18:58:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:42,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:42,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:42,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:42,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:42,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 18:58:42,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:42,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:42,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:42,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:42,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:42,637 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-26 18:58:42,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893633603] [2020-10-26 18:58:42,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:42,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-26 18:58:42,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335651759] [2020-10-26 18:58:42,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-26 18:58:42,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:42,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-26 18:58:42,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-26 18:58:42,649 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 13 states. [2020-10-26 18:58:43,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:43,309 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-26 18:58:43,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-26 18:58:43,310 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2020-10-26 18:58:43,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:43,312 INFO L225 Difference]: With dead ends: 64 [2020-10-26 18:58:43,312 INFO L226 Difference]: Without dead ends: 61 [2020-10-26 18:58:43,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2020-10-26 18:58:43,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-26 18:58:43,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-10-26 18:58:43,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-26 18:58:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-26 18:58:43,331 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 48 [2020-10-26 18:58:43,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:43,334 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-26 18:58:43,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-26 18:58:43,334 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-26 18:58:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-26 18:58:43,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:43,336 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:43,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 18:58:43,336 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:43,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:43,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1127003565, now seen corresponding path program 8 times [2020-10-26 18:58:43,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:43,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674850582] [2020-10-26 18:58:43,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:43,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:43,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:45,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:45,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 18:58:45,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:45,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1648 [2020-10-26 18:58:45,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:45,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 18:58:45,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:45,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 18:58:45,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:45,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:45,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:45,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:45,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:45,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:45,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 18:58:45,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:45,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:45,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:45,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:45,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:45,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 18:58:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:45,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:45,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:45,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:45,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:45,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:58:45,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:45,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:45,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 18:58:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:45,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:45,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:45,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:45,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:45,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 18:58:45,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:45,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:45,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:45,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:45,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:45,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 18:58:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:45,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:45,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:45,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:45,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:45,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:58:45,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:45,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:45,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:45,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:45,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:58:45,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 18:58:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:45,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:45,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:45,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:45,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:45,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:58:45,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:45,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:45,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:58:45,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:45,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:45,189 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-26 18:58:45,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674850582] [2020-10-26 18:58:45,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:45,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 18:58:45,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700101570] [2020-10-26 18:58:45,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 18:58:45,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:45,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 18:58:45,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-26 18:58:45,193 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 9 states. [2020-10-26 18:58:45,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:45,302 INFO L93 Difference]: Finished difference Result 104 states and 106 transitions. [2020-10-26 18:58:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 18:58:45,303 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-10-26 18:58:45,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:45,304 INFO L225 Difference]: With dead ends: 104 [2020-10-26 18:58:45,304 INFO L226 Difference]: Without dead ends: 62 [2020-10-26 18:58:45,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-26 18:58:45,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-26 18:58:45,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2020-10-26 18:58:45,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-26 18:58:45,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-10-26 18:58:45,328 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 56 [2020-10-26 18:58:45,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:45,329 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-10-26 18:58:45,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 18:58:45,329 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-10-26 18:58:45,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-26 18:58:45,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:45,333 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:45,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 18:58:45,334 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:45,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:45,334 INFO L82 PathProgramCache]: Analyzing trace with hash 411406581, now seen corresponding path program 9 times [2020-10-26 18:58:45,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:45,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970127122] [2020-10-26 18:58:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:45,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:45,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:47,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:47,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-26 18:58:47,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:47,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2345 [2020-10-26 18:58:47,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-26 18:58:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-26 18:58:47,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:58:47,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:47,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:47,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:47,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:47,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:47,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 18:58:47,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:47,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:47,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:47,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:47,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:47,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 18:58:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:47,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:47,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:47,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:47,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:47,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:47,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:47,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:47,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:47,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:47,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:47,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 18:58:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:47,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:47,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:47,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:47,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:47,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:47,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:47,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:47,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:47,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:47,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:47,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 18:58:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:47,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:48,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:48,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:48,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:48,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 18:58:48,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:48,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:48,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:48,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:48,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:48,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 18:58:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:48,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:48,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:48,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:48,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:48,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:48,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:48,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:48,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:48,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:48,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-26 18:58:48,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970127122] [2020-10-26 18:58:48,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:48,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-26 18:58:48,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995088439] [2020-10-26 18:58:48,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-26 18:58:48,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:48,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-26 18:58:48,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-26 18:58:48,034 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 14 states. [2020-10-26 18:58:49,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:49,116 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-10-26 18:58:49,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-26 18:58:49,117 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 58 [2020-10-26 18:58:49,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:49,119 INFO L225 Difference]: With dead ends: 75 [2020-10-26 18:58:49,119 INFO L226 Difference]: Without dead ends: 72 [2020-10-26 18:58:49,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=125, Invalid=687, Unknown=0, NotChecked=0, Total=812 [2020-10-26 18:58:49,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-26 18:58:49,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2020-10-26 18:58:49,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-26 18:58:49,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-10-26 18:58:49,138 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 58 [2020-10-26 18:58:49,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:49,139 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-10-26 18:58:49,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-26 18:58:49,139 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-10-26 18:58:49,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-26 18:58:49,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:49,143 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:49,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 18:58:49,143 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:49,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:49,144 INFO L82 PathProgramCache]: Analyzing trace with hash 917035355, now seen corresponding path program 10 times [2020-10-26 18:58:49,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:49,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670194429] [2020-10-26 18:58:49,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:49,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:49,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:51,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:51,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 18:58:51,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:51,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2570 [2020-10-26 18:58:51,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-26 18:58:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:51,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 18:58:51,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:58:51,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:51,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:51,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:51,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:51,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:51,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 18:58:51,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:51,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:51,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:51,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:51,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 18:58:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:51,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:52,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:52,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:52,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:52,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 18:58:52,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:52,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:52,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:52,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:52,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:52,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 18:58:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:52,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:52,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:52,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:52,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:52,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:52,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:52,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:52,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:52,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:52,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:52,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 18:58:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:52,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:52,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:52,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:52,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:52,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:58:52,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:52,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:52,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:52,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:52,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 18:58:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:52,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:52,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:52,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:52,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:52,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:52,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:52,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:52,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-26 18:58:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:52,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:52,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:52,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:52,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:52,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:52,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:52,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:52,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:52,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:52,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 10 proven. 66 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-26 18:58:52,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670194429] [2020-10-26 18:58:52,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:52,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-26 18:58:52,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379083149] [2020-10-26 18:58:52,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-26 18:58:52,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:52,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 18:58:52,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-26 18:58:52,059 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 15 states. [2020-10-26 18:58:53,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:53,098 INFO L93 Difference]: Finished difference Result 83 states and 84 transitions. [2020-10-26 18:58:53,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-26 18:58:53,106 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 66 [2020-10-26 18:58:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:53,107 INFO L225 Difference]: With dead ends: 83 [2020-10-26 18:58:53,107 INFO L226 Difference]: Without dead ends: 80 [2020-10-26 18:58:53,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2020-10-26 18:58:53,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-26 18:58:53,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2020-10-26 18:58:53,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-26 18:58:53,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2020-10-26 18:58:53,124 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 66 [2020-10-26 18:58:53,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:53,124 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2020-10-26 18:58:53,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-26 18:58:53,124 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2020-10-26 18:58:53,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-26 18:58:53,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:53,127 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:53,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 18:58:53,127 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:53,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:53,131 INFO L82 PathProgramCache]: Analyzing trace with hash -733455423, now seen corresponding path program 11 times [2020-10-26 18:58:53,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:53,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203109662] [2020-10-26 18:58:53,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:53,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:53,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:55,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:55,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-26 18:58:55,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:58:55,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2813 [2020-10-26 18:58:55,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:55,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-26 18:58:55,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:58:55,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 18:58:55,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:56,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:56,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:56,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:56,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:56,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:56,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 18:58:56,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:56,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:56,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:56,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:56,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:56,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 18:58:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:56,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:56,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:56,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:56,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:56,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:58:56,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:56,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:56,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 18:58:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:56,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:56,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:56,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:56,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:56,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:56,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:56,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:56,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:56,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:56,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:56,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 18:58:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:56,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:56,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:56,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:56,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:56,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:56,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:56,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:56,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:56,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:56,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:56,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 18:58:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:56,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:56,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:56,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:56,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:56,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:58:56,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:56,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:56,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:56,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:56,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:56,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-26 18:58:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:56,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:56,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:56,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:56,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:58:56,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:56,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:56,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 18:58:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:56,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:56,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:56,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:56,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:56,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:58:56,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:56,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:58:56,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:56,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:58:56,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:56,345 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 12 proven. 96 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-26 18:58:56,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203109662] [2020-10-26 18:58:56,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:58:56,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-26 18:58:56,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555762301] [2020-10-26 18:58:56,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-26 18:58:56,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:56,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-26 18:58:56,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-26 18:58:56,348 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 17 states. [2020-10-26 18:58:57,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:57,818 INFO L93 Difference]: Finished difference Result 100 states and 104 transitions. [2020-10-26 18:58:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-26 18:58:57,819 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 74 [2020-10-26 18:58:57,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:57,822 INFO L225 Difference]: With dead ends: 100 [2020-10-26 18:58:57,822 INFO L226 Difference]: Without dead ends: 97 [2020-10-26 18:58:57,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2020-10-26 18:58:57,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-26 18:58:57,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 85. [2020-10-26 18:58:57,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-26 18:58:57,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 86 transitions. [2020-10-26 18:58:57,855 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 86 transitions. Word has length 74 [2020-10-26 18:58:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:57,856 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 86 transitions. [2020-10-26 18:58:57,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-26 18:58:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 86 transitions. [2020-10-26 18:58:57,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-26 18:58:57,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:57,858 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:58:57,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 18:58:57,858 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:57,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:57,860 INFO L82 PathProgramCache]: Analyzing trace with hash 915019815, now seen corresponding path program 12 times [2020-10-26 18:58:57,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:57,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964173689] [2020-10-26 18:58:57,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:57,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:58,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:00,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:00,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-26 18:59:00,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:59:00,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2861 [2020-10-26 18:59:00,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:00,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-26 18:59:00,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:59:00,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 18:59:00,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:01,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:59:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:01,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:01,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:01,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:59:01,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:01,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 18:59:01,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:01,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:01,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:01,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:01,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 18:59:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:01,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:01,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:01,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:01,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:01,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:59:01,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:01,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:01,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 18:59:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:01,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:01,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:01,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:01,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:01,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:01,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:01,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:01,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:01,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:01,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:01,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 18:59:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:01,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:01,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:01,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:01,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:01,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:59:01,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:01,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:01,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:01,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:01,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:01,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 18:59:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:01,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:01,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:01,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:01,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:01,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:01,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:01,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:01,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:01,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:01,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:01,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-26 18:59:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:01,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:01,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:01,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:01,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:01,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:01,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:01,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:01,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:01,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:01,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 18:59:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:01,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:01,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:01,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:01,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:01,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:01,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:01,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:01,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-26 18:59:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:01,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:01,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:01,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:01,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:01,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:01,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:01,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:01,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:01,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:01,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:01,145 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 14 proven. 122 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-26 18:59:01,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964173689] [2020-10-26 18:59:01,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:59:01,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-26 18:59:01,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958048167] [2020-10-26 18:59:01,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-26 18:59:01,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:59:01,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-26 18:59:01,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-10-26 18:59:01,148 INFO L87 Difference]: Start difference. First operand 85 states and 86 transitions. Second operand 18 states. [2020-10-26 18:59:02,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:59:02,686 INFO L93 Difference]: Finished difference Result 108 states and 112 transitions. [2020-10-26 18:59:02,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-26 18:59:02,687 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 82 [2020-10-26 18:59:02,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:59:02,690 INFO L225 Difference]: With dead ends: 108 [2020-10-26 18:59:02,690 INFO L226 Difference]: Without dead ends: 105 [2020-10-26 18:59:02,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=200, Invalid=1282, Unknown=0, NotChecked=0, Total=1482 [2020-10-26 18:59:02,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-26 18:59:02,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 93. [2020-10-26 18:59:02,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-26 18:59:02,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-10-26 18:59:02,710 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 82 [2020-10-26 18:59:02,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:59:02,710 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-10-26 18:59:02,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-26 18:59:02,711 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-10-26 18:59:02,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-26 18:59:02,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:59:02,712 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:59:02,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 18:59:02,715 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:59:02,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:59:02,716 INFO L82 PathProgramCache]: Analyzing trace with hash 479465101, now seen corresponding path program 13 times [2020-10-26 18:59:02,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:59:02,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265337547] [2020-10-26 18:59:02,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:59:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:02,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:03,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:05,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:05,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 18:59:05,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:59:05,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3001 [2020-10-26 18:59:05,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-26 18:59:05,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:59:05,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-26 18:59:05,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:06,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:59:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:06,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:06,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:06,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:59:06,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:06,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:59:06,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:06,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:06,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 18:59:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:06,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:06,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:06,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:06,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:06,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:06,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:06,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:06,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:06,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:06,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:06,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 18:59:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:06,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:06,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:06,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:06,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:06,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:06,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:06,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:06,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:06,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:06,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:06,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 18:59:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:06,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:06,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:06,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:06,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:06,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:06,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:06,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:06,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:06,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:06,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:06,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 18:59:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:06,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:06,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:06,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:06,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:06,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:06,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:06,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:06,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:06,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:06,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:06,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-26 18:59:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:06,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:06,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:06,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:06,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:06,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:06,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:06,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:06,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:06,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:06,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:06,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 18:59:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:06,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:06,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:06,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:06,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:06,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:06,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:06,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:06,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-26 18:59:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:06,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:06,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:06,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:06,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:06,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:06,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:06,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:06,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 18:59:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:06,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:06,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:06,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:06,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:06,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:59:06,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:06,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:06,186 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 16 proven. 152 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-26 18:59:06,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265337547] [2020-10-26 18:59:06,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:59:06,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-26 18:59:06,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309040294] [2020-10-26 18:59:06,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-26 18:59:06,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:59:06,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-26 18:59:06,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-26 18:59:06,189 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 19 states. [2020-10-26 18:59:07,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:59:07,793 INFO L93 Difference]: Finished difference Result 116 states and 120 transitions. [2020-10-26 18:59:07,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-26 18:59:07,793 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 90 [2020-10-26 18:59:07,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:59:07,795 INFO L225 Difference]: With dead ends: 116 [2020-10-26 18:59:07,796 INFO L226 Difference]: Without dead ends: 113 [2020-10-26 18:59:07,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=206, Invalid=1434, Unknown=0, NotChecked=0, Total=1640 [2020-10-26 18:59:07,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-26 18:59:07,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2020-10-26 18:59:07,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-26 18:59:07,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 102 transitions. [2020-10-26 18:59:07,810 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 102 transitions. Word has length 90 [2020-10-26 18:59:07,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:59:07,810 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 102 transitions. [2020-10-26 18:59:07,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-26 18:59:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 102 transitions. [2020-10-26 18:59:07,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-26 18:59:07,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:59:07,812 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:59:07,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 18:59:07,813 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:59:07,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:59:07,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1081327885, now seen corresponding path program 14 times [2020-10-26 18:59:07,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:59:07,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146934098] [2020-10-26 18:59:07,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:59:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:07,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:08,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:10,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:10,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-26 18:59:10,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:59:10,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2395 [2020-10-26 18:59:10,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:10,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 18:59:10,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:59:10,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 18:59:10,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:10,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:59:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:10,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:10,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:10,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:59:10,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:10,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:59:10,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:10,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:10,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:10,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:10,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:59:10,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 18:59:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:10,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:10,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:10,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:10,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:10,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:10,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:10,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:10,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:10,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:10,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:59:10,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 18:59:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:10,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:10,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:10,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:10,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:10,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:10,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:10,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:10,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:10,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:10,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:10,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 18:59:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:10,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:10,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:10,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:10,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:10,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:10,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:10,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:10,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:10,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:10,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:10,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 18:59:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:10,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:10,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:10,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:10,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:10,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:10,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:10,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:10,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:10,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:10,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-26 18:59:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:10,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:10,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:10,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:10,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:10,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:10,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:10,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:10,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:59:10,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 18:59:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:10,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:10,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:10,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:10,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:10,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:10,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-26 18:59:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:10,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:10,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:10,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:10,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:10,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:10,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:10,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:10,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:10,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:10,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:10,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 18:59:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:10,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:10,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:10,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:10,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:10,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:10,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:10,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:10,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:10,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:10,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:10,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 18:59:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:10,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:10,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:10,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:10,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:10,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 18:59:10,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:10,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:10,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 18:59:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 18 proven. 36 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2020-10-26 18:59:10,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146934098] [2020-10-26 18:59:10,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:59:10,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-26 18:59:10,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169637639] [2020-10-26 18:59:10,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 18:59:10,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:59:10,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 18:59:10,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-26 18:59:10,452 INFO L87 Difference]: Start difference. First operand 101 states and 102 transitions. Second operand 10 states. [2020-10-26 18:59:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:59:10,601 INFO L93 Difference]: Finished difference Result 186 states and 188 transitions. [2020-10-26 18:59:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 18:59:10,604 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 98 [2020-10-26 18:59:10,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:59:10,606 INFO L225 Difference]: With dead ends: 186 [2020-10-26 18:59:10,606 INFO L226 Difference]: Without dead ends: 104 [2020-10-26 18:59:10,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-26 18:59:10,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-26 18:59:10,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2020-10-26 18:59:10,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-26 18:59:10,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 104 transitions. [2020-10-26 18:59:10,627 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 104 transitions. Word has length 98 [2020-10-26 18:59:10,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:59:10,628 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 104 transitions. [2020-10-26 18:59:10,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 18:59:10,628 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 104 transitions. [2020-10-26 18:59:10,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-26 18:59:10,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:59:10,630 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:59:10,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 18:59:10,630 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:59:10,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:59:10,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1416567573, now seen corresponding path program 15 times [2020-10-26 18:59:10,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:59:10,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034900087] [2020-10-26 18:59:10,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:59:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:10,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:11,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:15,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:15,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 18:59:15,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:59:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4647 [2020-10-26 18:59:15,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-26 18:59:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:59:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-26 18:59:15,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:15,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:59:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:15,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:15,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:15,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:59:15,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:15,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:59:15,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:15,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:15,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-26 18:59:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:15,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:15,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:15,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:15,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:15,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:15,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:15,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:15,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 18:59:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:15,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:15,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:15,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:15,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:15,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:15,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:15,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:15,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-26 18:59:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:15,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:15,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:15,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:15,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:15,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:15,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:15,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:15,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 18:59:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:15,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:15,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:15,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:15,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:15,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:15,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:15,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:15,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:15,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:15,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:15,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 18:59:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:15,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:15,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:15,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:15,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:15,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:15,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:15,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:15,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-26 18:59:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:15,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:15,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:15,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:15,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:15,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:15,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:15,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:15,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 18:59:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:15,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:15,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:15,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:15,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:15,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:15,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:15,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:15,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:15,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-26 18:59:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:15,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:15,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:15,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:15,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:15,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:15,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:15,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:15,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:15,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 18:59:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:15,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:15,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:15,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:15,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:15,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:59:15,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:15,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:15,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:15,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:15,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:15,839 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 18 proven. 199 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-10-26 18:59:15,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034900087] [2020-10-26 18:59:15,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:59:15,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-26 18:59:15,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037421143] [2020-10-26 18:59:15,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-26 18:59:15,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:59:15,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-26 18:59:15,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-26 18:59:15,843 INFO L87 Difference]: Start difference. First operand 103 states and 104 transitions. Second operand 21 states. [2020-10-26 18:59:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:59:18,088 INFO L93 Difference]: Finished difference Result 132 states and 138 transitions. [2020-10-26 18:59:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-26 18:59:18,089 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 100 [2020-10-26 18:59:18,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:59:18,090 INFO L225 Difference]: With dead ends: 132 [2020-10-26 18:59:18,090 INFO L226 Difference]: Without dead ends: 129 [2020-10-26 18:59:18,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=288, Invalid=2064, Unknown=0, NotChecked=0, Total=2352 [2020-10-26 18:59:18,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-26 18:59:18,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 111. [2020-10-26 18:59:18,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-26 18:59:18,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 112 transitions. [2020-10-26 18:59:18,104 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 112 transitions. Word has length 100 [2020-10-26 18:59:18,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:59:18,105 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 112 transitions. [2020-10-26 18:59:18,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-26 18:59:18,105 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 112 transitions. [2020-10-26 18:59:18,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-26 18:59:18,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:59:18,106 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:59:18,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 18:59:18,106 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:59:18,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:59:18,107 INFO L82 PathProgramCache]: Analyzing trace with hash -436845701, now seen corresponding path program 16 times [2020-10-26 18:59:18,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:59:18,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710192763] [2020-10-26 18:59:18,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:59:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:18,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:18,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 18:59:21,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:59:21,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3292 [2020-10-26 18:59:21,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-26 18:59:21,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:59:21,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 18:59:21,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:59:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:59:21,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:21,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:59:21,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:21,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:21,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:21,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-26 18:59:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:21,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:21,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:21,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:21,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:21,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:21,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 18:59:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:21,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:21,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:21,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:21,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:21,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:21,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-26 18:59:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:21,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:21,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:21,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:21,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:21,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:21,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 18:59:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:21,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:21,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:21,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:21,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 18:59:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:21,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:21,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:21,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:21,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-26 18:59:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:21,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:21,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:21,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:21,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 18:59:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:21,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:21,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:21,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:21,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:21,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:21,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-26 18:59:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:21,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:21,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:21,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:21,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:21,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:21,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 18:59:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:21,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:21,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 18:59:21,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:21,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:21,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:21,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-26 18:59:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:21,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:21,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:21,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:21,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:21,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:21,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:21,622 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 20 proven. 49 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-26 18:59:21,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710192763] [2020-10-26 18:59:21,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:59:21,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-26 18:59:21,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190244166] [2020-10-26 18:59:21,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 18:59:21,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:59:21,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 18:59:21,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-26 18:59:21,624 INFO L87 Difference]: Start difference. First operand 111 states and 112 transitions. Second operand 11 states. [2020-10-26 18:59:21,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:59:21,774 INFO L93 Difference]: Finished difference Result 204 states and 206 transitions. [2020-10-26 18:59:21,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 18:59:21,774 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2020-10-26 18:59:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:59:21,776 INFO L225 Difference]: With dead ends: 204 [2020-10-26 18:59:21,776 INFO L226 Difference]: Without dead ends: 114 [2020-10-26 18:59:21,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-26 18:59:21,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-26 18:59:21,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2020-10-26 18:59:21,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-26 18:59:21,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 114 transitions. [2020-10-26 18:59:21,791 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 114 transitions. Word has length 108 [2020-10-26 18:59:21,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:59:21,791 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 114 transitions. [2020-10-26 18:59:21,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 18:59:21,791 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 114 transitions. [2020-10-26 18:59:21,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-26 18:59:21,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:59:21,795 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:59:21,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 18:59:21,796 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:59:21,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:59:21,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1739203299, now seen corresponding path program 17 times [2020-10-26 18:59:21,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:59:21,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378069017] [2020-10-26 18:59:21,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:59:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:21,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:22,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:25,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:25,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-26 18:59:25,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:59:25,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4095 [2020-10-26 18:59:25,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 18:59:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:59:25,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 18:59:25,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:59:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:26,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:59:26,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:26,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:59:26,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:26,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:26,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:26,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:26,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-26 18:59:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:26,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:26,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:26,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:26,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:26,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:26,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:26,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:26,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-26 18:59:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:26,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:26,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:26,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:26,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:26,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:26,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:26,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:26,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 18:59:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:26,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:26,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:26,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:26,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 18:59:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:26,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:26,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:26,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:26,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:26,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:26,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:26,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:26,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 18:59:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:26,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:26,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:26,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:26,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:26,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:26,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:26,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 18:59:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:26,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:26,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:26,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:26,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:26,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 18:59:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:26,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:26,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:26,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:26,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:26,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 18:59:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:26,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:26,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:26,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:26,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:26,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 18:59:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:26,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:26,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:26,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:26,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:26,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:26,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:26,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:26,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 18:59:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:26,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:26,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:26,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:26,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:26,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:26,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:26,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:26,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:26,124 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 20 proven. 64 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-26 18:59:26,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378069017] [2020-10-26 18:59:26,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:59:26,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-26 18:59:26,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544723175] [2020-10-26 18:59:26,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 18:59:26,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:59:26,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 18:59:26,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-26 18:59:26,127 INFO L87 Difference]: Start difference. First operand 113 states and 114 transitions. Second operand 12 states. [2020-10-26 18:59:26,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:59:26,232 INFO L93 Difference]: Finished difference Result 206 states and 208 transitions. [2020-10-26 18:59:26,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 18:59:26,233 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 110 [2020-10-26 18:59:26,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:59:26,234 INFO L225 Difference]: With dead ends: 206 [2020-10-26 18:59:26,234 INFO L226 Difference]: Without dead ends: 116 [2020-10-26 18:59:26,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-26 18:59:26,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-26 18:59:26,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2020-10-26 18:59:26,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-26 18:59:26,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 116 transitions. [2020-10-26 18:59:26,247 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 116 transitions. Word has length 110 [2020-10-26 18:59:26,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:59:26,248 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 116 transitions. [2020-10-26 18:59:26,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 18:59:26,248 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 116 transitions. [2020-10-26 18:59:26,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-26 18:59:26,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:59:26,249 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:59:26,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-26 18:59:26,249 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:59:26,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:59:26,250 INFO L82 PathProgramCache]: Analyzing trace with hash 825595455, now seen corresponding path program 18 times [2020-10-26 18:59:26,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:59:26,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744508568] [2020-10-26 18:59:26,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:59:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:26,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:26,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 18:59:31,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:59:31,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-26 18:59:31,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-26 18:59:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:59:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 18:59:31,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:59:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:59:31,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:31,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:31,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:31,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:31,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:31,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 18:59:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:31,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:31,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:31,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:31,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:31,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:31,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 18:59:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:31,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:31,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:31,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:31,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 18:59:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:31,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:31,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:31,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:31,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:31,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:31,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-26 18:59:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:31,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:31,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:31,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:31,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 18:59:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:31,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:31,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:31,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:31,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:31,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:31,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 18:59:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:31,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:31,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:31,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:31,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:31,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:31,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 18:59:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:31,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:31,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:31,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:31,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-26 18:59:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:31,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:31,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:31,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:31,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-26 18:59:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:31,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:31,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:31,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-26 18:59:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:31,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:31,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:31,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:31,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:31,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:31,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:31,485 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 20 proven. 81 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-26 18:59:31,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744508568] [2020-10-26 18:59:31,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:59:31,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-26 18:59:31,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586746135] [2020-10-26 18:59:31,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-26 18:59:31,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:59:31,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-26 18:59:31,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-26 18:59:31,488 INFO L87 Difference]: Start difference. First operand 115 states and 116 transitions. Second operand 13 states. [2020-10-26 18:59:31,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:59:31,675 INFO L93 Difference]: Finished difference Result 208 states and 210 transitions. [2020-10-26 18:59:31,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 18:59:31,676 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 112 [2020-10-26 18:59:31,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:59:31,678 INFO L225 Difference]: With dead ends: 208 [2020-10-26 18:59:31,678 INFO L226 Difference]: Without dead ends: 118 [2020-10-26 18:59:31,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-26 18:59:31,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-26 18:59:31,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2020-10-26 18:59:31,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-26 18:59:31,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 118 transitions. [2020-10-26 18:59:31,696 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 118 transitions. Word has length 112 [2020-10-26 18:59:31,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:59:31,697 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 118 transitions. [2020-10-26 18:59:31,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-26 18:59:31,697 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 118 transitions. [2020-10-26 18:59:31,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-26 18:59:31,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:59:31,698 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:59:31,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-26 18:59:31,699 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:59:31,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:59:31,699 INFO L82 PathProgramCache]: Analyzing trace with hash 285970145, now seen corresponding path program 19 times [2020-10-26 18:59:31,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:59:31,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583615924] [2020-10-26 18:59:31,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:59:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:31,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:32,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:36,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:36,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-26 18:59:36,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:59:36,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-26 18:59:36,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-26 18:59:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:59:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-26 18:59:36,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:59:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:37,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:37,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:37,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:59:37,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:37,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:59:37,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:37,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:37,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:37,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:37,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 18:59:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:37,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:37,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:37,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:37,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:37,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:37,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:37,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:37,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:37,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:37,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 18:59:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:37,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:37,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:37,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:37,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:37,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:37,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:37,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:37,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:37,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 18:59:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:37,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:37,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:37,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:37,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:37,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:37,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:37,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:37,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:37,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:37,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-26 18:59:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:37,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:37,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:37,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:37,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:37,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:37,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:37,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 18:59:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:37,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:37,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:37,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:37,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:37,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:59:37,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:37,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:37,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:37,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:37,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-26 18:59:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:37,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:37,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:37,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:37,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:37,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:37,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:37,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:37,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:37,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:37,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 18:59:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:37,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:37,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:37,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:37,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:37,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:37,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:37,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 18:59:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:37,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:37,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:37,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:37,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:37,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:37,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:37,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 18:59:37,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:37,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:37,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:37,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:37,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:37,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:37,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:37,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:37,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 18:59:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:37,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:37,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:37,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:37,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:37,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:37,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:37,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:37,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:37,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:37,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 20 proven. 258 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-26 18:59:37,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583615924] [2020-10-26 18:59:37,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:59:37,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-26 18:59:37,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362205048] [2020-10-26 18:59:37,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-26 18:59:37,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:59:37,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-26 18:59:37,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-26 18:59:37,362 INFO L87 Difference]: Start difference. First operand 117 states and 118 transitions. Second operand 22 states. [2020-10-26 18:59:39,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:59:39,734 INFO L93 Difference]: Finished difference Result 137 states and 140 transitions. [2020-10-26 18:59:39,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-26 18:59:39,735 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 114 [2020-10-26 18:59:39,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:59:39,738 INFO L225 Difference]: With dead ends: 137 [2020-10-26 18:59:39,738 INFO L226 Difference]: Without dead ends: 134 [2020-10-26 18:59:39,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=294, Invalid=2156, Unknown=0, NotChecked=0, Total=2450 [2020-10-26 18:59:39,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-26 18:59:39,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 125. [2020-10-26 18:59:39,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-26 18:59:39,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 126 transitions. [2020-10-26 18:59:39,758 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 126 transitions. Word has length 114 [2020-10-26 18:59:39,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:59:39,758 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 126 transitions. [2020-10-26 18:59:39,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-26 18:59:39,758 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 126 transitions. [2020-10-26 18:59:39,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-26 18:59:39,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:59:39,760 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:59:39,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-26 18:59:39,760 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:59:39,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:59:39,761 INFO L82 PathProgramCache]: Analyzing trace with hash 720907079, now seen corresponding path program 20 times [2020-10-26 18:59:39,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:59:39,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409106945] [2020-10-26 18:59:39,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:59:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:39,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:40,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:44,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:44,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-26 18:59:44,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:59:44,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-26 18:59:44,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:44,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-26 18:59:44,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:59:44,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-26 18:59:44,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:59:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:59:45,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:45,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:45,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 18:59:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:45,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:45,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:45,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 18:59:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:45,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:45,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:45,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 18:59:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:45,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:45,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-26 18:59:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:45,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:45,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 18:59:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:45,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:45,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-26 18:59:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:45,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:45,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:45,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 18:59:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:45,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:45,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:45,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 18:59:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:45,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:45,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 18:59:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:45,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:45,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:45,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 18:59:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:45,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-26 18:59:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:45,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:45,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:45,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:45,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:45,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:45,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:45,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 18:59:45,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:45,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 18:59:45,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:45,511 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 22 proven. 300 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2020-10-26 18:59:45,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409106945] [2020-10-26 18:59:45,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:59:45,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-26 18:59:45,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962046197] [2020-10-26 18:59:45,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-26 18:59:45,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:59:45,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-26 18:59:45,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-26 18:59:45,514 INFO L87 Difference]: Start difference. First operand 125 states and 126 transitions. Second operand 23 states. [2020-10-26 18:59:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:59:48,259 INFO L93 Difference]: Finished difference Result 145 states and 148 transitions. [2020-10-26 18:59:48,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-26 18:59:48,263 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 122 [2020-10-26 18:59:48,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:59:48,265 INFO L225 Difference]: With dead ends: 145 [2020-10-26 18:59:48,265 INFO L226 Difference]: Without dead ends: 142 [2020-10-26 18:59:48,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=305, Invalid=2451, Unknown=0, NotChecked=0, Total=2756 [2020-10-26 18:59:48,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-26 18:59:48,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 133. [2020-10-26 18:59:48,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-26 18:59:48,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 134 transitions. [2020-10-26 18:59:48,279 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 134 transitions. Word has length 122 [2020-10-26 18:59:48,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:59:48,280 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 134 transitions. [2020-10-26 18:59:48,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-26 18:59:48,280 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 134 transitions. [2020-10-26 18:59:48,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-26 18:59:48,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:59:48,282 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:59:48,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-26 18:59:48,282 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:59:48,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:59:48,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1607270829, now seen corresponding path program 21 times [2020-10-26 18:59:48,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:59:48,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245783749] [2020-10-26 18:59:48,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:59:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:48,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:49,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-26 18:59:53,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:59:53,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-26 18:59:53,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-26 18:59:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:59:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 18:59:53,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:59:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:59:53,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 18:59:53,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 18:59:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:53,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 18:59:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:53,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 18:59:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:53,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-26 18:59:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:53,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 18:59:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:53,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-26 18:59:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:53,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 18:59:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:53,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 18:59:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:53,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 18:59:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:53,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 18:59:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:53,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-26 18:59:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:53,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 18:59:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:53,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:53,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:53,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:53,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:53,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:53,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 24 proven. 100 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-10-26 18:59:53,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245783749] [2020-10-26 18:59:53,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:59:53,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-26 18:59:53,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665020582] [2020-10-26 18:59:53,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-26 18:59:53,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:59:53,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-26 18:59:53,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-26 18:59:53,563 INFO L87 Difference]: Start difference. First operand 133 states and 134 transitions. Second operand 14 states. [2020-10-26 18:59:53,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:59:53,769 INFO L93 Difference]: Finished difference Result 242 states and 244 transitions. [2020-10-26 18:59:53,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 18:59:53,771 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 130 [2020-10-26 18:59:53,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:59:53,773 INFO L225 Difference]: With dead ends: 242 [2020-10-26 18:59:53,773 INFO L226 Difference]: Without dead ends: 136 [2020-10-26 18:59:53,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-26 18:59:53,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-26 18:59:53,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 135. [2020-10-26 18:59:53,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-26 18:59:53,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 136 transitions. [2020-10-26 18:59:53,800 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 136 transitions. Word has length 130 [2020-10-26 18:59:53,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:59:53,800 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 136 transitions. [2020-10-26 18:59:53,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-26 18:59:53,800 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 136 transitions. [2020-10-26 18:59:53,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-26 18:59:53,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:59:53,802 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:59:53,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-26 18:59:53,802 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:59:53,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:59:53,803 INFO L82 PathProgramCache]: Analyzing trace with hash 149345743, now seen corresponding path program 22 times [2020-10-26 18:59:53,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:59:53,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641823911] [2020-10-26 18:59:53,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:59:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:53,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:54,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:58,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:58,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-26 18:59:58,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 18:59:58,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-26 18:59:58,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 18:59:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 18:59:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-26 18:59:58,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:59:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:59:59,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 18:59:59,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:59:59,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 18:59:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:59,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-26 18:59:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:59,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 18:59:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:59,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 18:59:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:59,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-26 18:59:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:59,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 18:59:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:59,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-26 18:59:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:59,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 18:59:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 18:59:59,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-26 18:59:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:59,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-26 18:59:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:59,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-26 18:59:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:59,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-26 18:59:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:59:59,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:59:59,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:59:59,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:59:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 18:59:59,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:59:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:59:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 18:59:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:59:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:59:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 24 proven. 121 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-10-26 18:59:59,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641823911] [2020-10-26 18:59:59,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 18:59:59,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-26 18:59:59,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267668271] [2020-10-26 18:59:59,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-26 18:59:59,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:59:59,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 18:59:59,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-26 18:59:59,125 INFO L87 Difference]: Start difference. First operand 135 states and 136 transitions. Second operand 15 states. [2020-10-26 18:59:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:59:59,270 INFO L93 Difference]: Finished difference Result 244 states and 246 transitions. [2020-10-26 18:59:59,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 18:59:59,270 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 132 [2020-10-26 18:59:59,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:59:59,271 INFO L225 Difference]: With dead ends: 244 [2020-10-26 18:59:59,271 INFO L226 Difference]: Without dead ends: 138 [2020-10-26 18:59:59,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-26 18:59:59,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-26 18:59:59,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2020-10-26 18:59:59,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-26 18:59:59,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 138 transitions. [2020-10-26 18:59:59,286 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 138 transitions. Word has length 132 [2020-10-26 18:59:59,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:59:59,286 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 138 transitions. [2020-10-26 18:59:59,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-26 18:59:59,286 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 138 transitions. [2020-10-26 18:59:59,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-26 18:59:59,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:59:59,288 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 18:59:59,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-26 18:59:59,288 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:59:59,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:59:59,289 INFO L82 PathProgramCache]: Analyzing trace with hash -757323407, now seen corresponding path program 23 times [2020-10-26 18:59:59,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:59:59,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774042531] [2020-10-26 18:59:59,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:59:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:59:59,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:00,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:04,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:04,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-26 19:00:04,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:00:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-26 19:00:04,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-26 19:00:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:00:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-26 19:00:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:00:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:00:05,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:00:05,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:00:05,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:00:05,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-26 19:00:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:05,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:00:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:05,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 19:00:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:05,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:00:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:05,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 19:00:05,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:00:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:05,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:00:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:05,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:00:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:05,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:00:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:05,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:00:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:00:05,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:00:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:05,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:00:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:05,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:00:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:05,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:05,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:05,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:05,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:05,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:05,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:05,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 24 proven. 376 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2020-10-26 19:00:05,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774042531] [2020-10-26 19:00:05,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:00:05,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-26 19:00:05,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750403509] [2020-10-26 19:00:05,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-26 19:00:05,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:00:05,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-26 19:00:05,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-26 19:00:05,136 INFO L87 Difference]: Start difference. First operand 137 states and 138 transitions. Second operand 25 states. [2020-10-26 19:00:08,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:00:08,571 INFO L93 Difference]: Finished difference Result 160 states and 164 transitions. [2020-10-26 19:00:08,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-26 19:00:08,572 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 134 [2020-10-26 19:00:08,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:00:08,574 INFO L225 Difference]: With dead ends: 160 [2020-10-26 19:00:08,574 INFO L226 Difference]: Without dead ends: 157 [2020-10-26 19:00:08,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=398, Invalid=3142, Unknown=0, NotChecked=0, Total=3540 [2020-10-26 19:00:08,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-26 19:00:08,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2020-10-26 19:00:08,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-26 19:00:08,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 146 transitions. [2020-10-26 19:00:08,591 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 146 transitions. Word has length 134 [2020-10-26 19:00:08,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:00:08,592 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 146 transitions. [2020-10-26 19:00:08,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-26 19:00:08,592 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 146 transitions. [2020-10-26 19:00:08,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-26 19:00:08,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:00:08,593 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:00:08,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-26 19:00:08,594 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:00:08,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:00:08,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1374865961, now seen corresponding path program 24 times [2020-10-26 19:00:08,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:00:08,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799463410] [2020-10-26 19:00:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:00:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:08,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:13,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:13,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 19:00:13,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:00:13,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-26 19:00:13,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-26 19:00:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:00:13,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-26 19:00:13,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:00:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:00:14,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:14,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:00:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:00:14,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-26 19:00:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:14,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:00:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:14,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 19:00:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:14,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:00:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:14,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:00:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:14,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:00:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:14,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:00:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:14,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:00:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:14,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:00:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:14,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:00:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:14,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:00:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:14,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:00:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:14,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:00:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:14,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:14,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:14,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:14,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:14,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:14,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:14,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:14,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:14,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:14,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:14,476 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 26 proven. 426 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2020-10-26 19:00:14,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799463410] [2020-10-26 19:00:14,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:00:14,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-26 19:00:14,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424756950] [2020-10-26 19:00:14,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-26 19:00:14,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:00:14,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-26 19:00:14,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=599, Unknown=0, NotChecked=0, Total=650 [2020-10-26 19:00:14,479 INFO L87 Difference]: Start difference. First operand 145 states and 146 transitions. Second operand 26 states. [2020-10-26 19:00:17,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:00:17,951 INFO L93 Difference]: Finished difference Result 168 states and 172 transitions. [2020-10-26 19:00:17,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-26 19:00:17,953 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 142 [2020-10-26 19:00:17,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:00:17,955 INFO L225 Difference]: With dead ends: 168 [2020-10-26 19:00:17,955 INFO L226 Difference]: Without dead ends: 165 [2020-10-26 19:00:17,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=404, Invalid=3256, Unknown=0, NotChecked=0, Total=3660 [2020-10-26 19:00:17,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-26 19:00:17,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 153. [2020-10-26 19:00:17,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-26 19:00:17,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 154 transitions. [2020-10-26 19:00:17,973 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 154 transitions. Word has length 142 [2020-10-26 19:00:17,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:00:17,974 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 154 transitions. [2020-10-26 19:00:17,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-26 19:00:17,974 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 154 transitions. [2020-10-26 19:00:17,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-26 19:00:17,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:00:17,976 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:00:17,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-26 19:00:17,976 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:00:17,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:00:17,977 INFO L82 PathProgramCache]: Analyzing trace with hash 280394813, now seen corresponding path program 25 times [2020-10-26 19:00:17,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:00:17,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807856939] [2020-10-26 19:00:17,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:00:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:18,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:18,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-26 19:00:23,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:00:23,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-26 19:00:23,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-26 19:00:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:00:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-26 19:00:23,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:00:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:00:23,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:00:23,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:00:23,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:00:23,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-26 19:00:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:00:23,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:00:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:23,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 19:00:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:00:23,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:00:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:23,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:00:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:23,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:00:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:23,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:00:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:23,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:00:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:23,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:00:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:23,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:00:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:23,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:00:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:23,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:00:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:23,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:00:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:23,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:00:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:23,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:23,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:23,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:23,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:23,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:23,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:23,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:23,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:23,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:23,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 28 proven. 480 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-26 19:00:23,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807856939] [2020-10-26 19:00:23,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:00:23,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-26 19:00:23,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381234982] [2020-10-26 19:00:23,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-26 19:00:23,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:00:23,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-26 19:00:23,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-26 19:00:23,932 INFO L87 Difference]: Start difference. First operand 153 states and 154 transitions. Second operand 27 states. [2020-10-26 19:00:27,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:00:27,802 INFO L93 Difference]: Finished difference Result 176 states and 180 transitions. [2020-10-26 19:00:27,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-26 19:00:27,803 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 150 [2020-10-26 19:00:27,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:00:27,805 INFO L225 Difference]: With dead ends: 176 [2020-10-26 19:00:27,805 INFO L226 Difference]: Without dead ends: 173 [2020-10-26 19:00:27,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=415, Invalid=3617, Unknown=0, NotChecked=0, Total=4032 [2020-10-26 19:00:27,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-10-26 19:00:27,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 161. [2020-10-26 19:00:27,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-26 19:00:27,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 162 transitions. [2020-10-26 19:00:27,825 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 162 transitions. Word has length 150 [2020-10-26 19:00:27,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:00:27,825 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 162 transitions. [2020-10-26 19:00:27,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-26 19:00:27,826 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 162 transitions. [2020-10-26 19:00:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-26 19:00:27,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:00:27,827 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:00:27,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-26 19:00:27,827 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:00:27,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:00:27,828 INFO L82 PathProgramCache]: Analyzing trace with hash -2080506717, now seen corresponding path program 26 times [2020-10-26 19:00:27,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:00:27,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923047179] [2020-10-26 19:00:27,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:00:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:27,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:28,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:32,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:32,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-26 19:00:32,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:00:32,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-26 19:00:32,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:32,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-26 19:00:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:00:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-26 19:00:32,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:00:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:00:33,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:33,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:00:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:00:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-26 19:00:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:33,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:00:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:33,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 19:00:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:33,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:00:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:33,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:00:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:33,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:00:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:33,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:00:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:33,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:00:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:33,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:00:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:33,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:00:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:33,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:00:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:33,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:00:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:33,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:00:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:33,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:00:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:33,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 19:00:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:33,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:33,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:33,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:33,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:33,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:33,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:33,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:33,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 30 proven. 552 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2020-10-26 19:00:33,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923047179] [2020-10-26 19:00:33,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:00:33,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-26 19:00:33,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627467717] [2020-10-26 19:00:33,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-26 19:00:33,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:00:33,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-26 19:00:33,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-10-26 19:00:33,804 INFO L87 Difference]: Start difference. First operand 161 states and 162 transitions. Second operand 29 states. [2020-10-26 19:00:34,907 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-26 19:00:38,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:00:38,680 INFO L93 Difference]: Finished difference Result 193 states and 200 transitions. [2020-10-26 19:00:38,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-26 19:00:38,682 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 158 [2020-10-26 19:00:38,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:00:38,684 INFO L225 Difference]: With dead ends: 193 [2020-10-26 19:00:38,684 INFO L226 Difference]: Without dead ends: 190 [2020-10-26 19:00:38,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=524, Invalid=4446, Unknown=0, NotChecked=0, Total=4970 [2020-10-26 19:00:38,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-26 19:00:38,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 169. [2020-10-26 19:00:38,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-26 19:00:38,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 170 transitions. [2020-10-26 19:00:38,705 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 170 transitions. Word has length 158 [2020-10-26 19:00:38,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:00:38,705 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 170 transitions. [2020-10-26 19:00:38,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-26 19:00:38,705 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 170 transitions. [2020-10-26 19:00:38,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-26 19:00:38,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:00:38,707 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:00:38,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-26 19:00:38,707 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:00:38,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:00:38,708 INFO L82 PathProgramCache]: Analyzing trace with hash 185186057, now seen corresponding path program 27 times [2020-10-26 19:00:38,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:00:38,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279051966] [2020-10-26 19:00:38,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:00:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:38,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:40,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:43,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:43,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-26 19:00:43,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:00:43,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-26 19:00:43,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-26 19:00:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:00:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-26 19:00:43,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:00:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:00:44,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:00:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:00:44,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-26 19:00:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:44,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:00:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 19:00:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:00:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:00:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:00:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:00:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:00:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:00:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:00:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:00:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:00:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:00:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:00:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 19:00:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:44,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-26 19:00:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:44,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:44,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:44,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:44,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:44,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:44,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:44,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:44,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:44,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:44,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:44,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 32 proven. 614 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2020-10-26 19:00:44,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279051966] [2020-10-26 19:00:44,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:00:44,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-26 19:00:44,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771952979] [2020-10-26 19:00:44,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-26 19:00:44,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:00:44,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-26 19:00:44,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2020-10-26 19:00:44,833 INFO L87 Difference]: Start difference. First operand 169 states and 170 transitions. Second operand 30 states. [2020-10-26 19:00:46,050 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-26 19:00:50,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:00:50,115 INFO L93 Difference]: Finished difference Result 201 states and 208 transitions. [2020-10-26 19:00:50,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-26 19:00:50,122 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 166 [2020-10-26 19:00:50,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:00:50,124 INFO L225 Difference]: With dead ends: 201 [2020-10-26 19:00:50,124 INFO L226 Difference]: Without dead ends: 198 [2020-10-26 19:00:50,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 895 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=533, Invalid=4723, Unknown=0, NotChecked=0, Total=5256 [2020-10-26 19:00:50,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-26 19:00:50,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 177. [2020-10-26 19:00:50,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-26 19:00:50,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 178 transitions. [2020-10-26 19:00:50,151 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 178 transitions. Word has length 166 [2020-10-26 19:00:50,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:00:50,152 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 178 transitions. [2020-10-26 19:00:50,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-26 19:00:50,152 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 178 transitions. [2020-10-26 19:00:50,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-26 19:00:50,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:00:50,154 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:00:50,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-26 19:00:50,154 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:00:50,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:00:50,154 INFO L82 PathProgramCache]: Analyzing trace with hash 587180911, now seen corresponding path program 28 times [2020-10-26 19:00:50,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:00:50,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413274705] [2020-10-26 19:00:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:00:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:50,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:51,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:55,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:55,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-26 19:00:55,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:00:55,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5397 [2020-10-26 19:00:55,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-26 19:00:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:00:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-26 19:00:55,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:00:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:00:56,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:56,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:00:56,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:00:56,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-26 19:00:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:56,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:00:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:56,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 19:00:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:56,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:00:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:56,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:00:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:56,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:00:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:56,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:00:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:56,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:00:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:56,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:00:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:56,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:00:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:56,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:00:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:56,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:00:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:56,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:00:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:56,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:00:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:56,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 19:00:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:00:56,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-26 19:00:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:56,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-26 19:00:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:00:56,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:00:56,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:00:56,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:00:56,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:00:56,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:00:56,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:00:56,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:00:56,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:00:56,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:00:56,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:00:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 34 proven. 680 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2020-10-26 19:00:56,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413274705] [2020-10-26 19:00:56,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:00:56,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-26 19:00:56,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828460922] [2020-10-26 19:00:56,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-26 19:00:56,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:00:56,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-26 19:00:56,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=869, Unknown=0, NotChecked=0, Total=930 [2020-10-26 19:00:56,694 INFO L87 Difference]: Start difference. First operand 177 states and 178 transitions. Second operand 31 states. [2020-10-26 19:00:57,872 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-26 19:01:02,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:01:02,178 INFO L93 Difference]: Finished difference Result 209 states and 216 transitions. [2020-10-26 19:01:02,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-26 19:01:02,179 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 174 [2020-10-26 19:01:02,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:01:02,181 INFO L225 Difference]: With dead ends: 209 [2020-10-26 19:01:02,181 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 19:01:02,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 959 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=538, Invalid=4864, Unknown=0, NotChecked=0, Total=5402 [2020-10-26 19:01:02,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 19:01:02,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 185. [2020-10-26 19:01:02,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-26 19:01:02,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 186 transitions. [2020-10-26 19:01:02,203 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 186 transitions. Word has length 174 [2020-10-26 19:01:02,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:01:02,204 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 186 transitions. [2020-10-26 19:01:02,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-26 19:01:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 186 transitions. [2020-10-26 19:01:02,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-26 19:01:02,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:01:02,205 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:01:02,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-26 19:01:02,206 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:01:02,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:01:02,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1023026731, now seen corresponding path program 29 times [2020-10-26 19:01:02,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:01:02,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286819976] [2020-10-26 19:01:02,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:01:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:02,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:03,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-26 19:01:07,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:01:07,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-26 19:01:07,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 19:01:07,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:01:07,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 19:01:07,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:01:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-26 19:01:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-26 19:01:07,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:01:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 19:01:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:01:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:01:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:01:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:01:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:01:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:01:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:01:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:01:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:01:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:01:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:01:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 19:01:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-26 19:01:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-26 19:01:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-26 19:01:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:07,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:07,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:07,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:07,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:07,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:07,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:07,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:07,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:01:07,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:07,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:07,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 36 proven. 144 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2020-10-26 19:01:07,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286819976] [2020-10-26 19:01:07,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:01:07,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-26 19:01:07,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852450476] [2020-10-26 19:01:07,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-26 19:01:07,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:01:07,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-26 19:01:07,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-26 19:01:07,664 INFO L87 Difference]: Start difference. First operand 185 states and 186 transitions. Second operand 16 states. [2020-10-26 19:01:07,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:01:07,977 INFO L93 Difference]: Finished difference Result 342 states and 344 transitions. [2020-10-26 19:01:07,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-26 19:01:07,979 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 182 [2020-10-26 19:01:07,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:01:07,983 INFO L225 Difference]: With dead ends: 342 [2020-10-26 19:01:07,983 INFO L226 Difference]: Without dead ends: 188 [2020-10-26 19:01:07,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-26 19:01:07,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-26 19:01:08,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 187. [2020-10-26 19:01:08,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-26 19:01:08,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 188 transitions. [2020-10-26 19:01:08,031 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 188 transitions. Word has length 182 [2020-10-26 19:01:08,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:01:08,032 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 188 transitions. [2020-10-26 19:01:08,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-26 19:01:08,032 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 188 transitions. [2020-10-26 19:01:08,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-26 19:01:08,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:01:08,037 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:01:08,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-26 19:01:08,038 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:01:08,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:01:08,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1637269257, now seen corresponding path program 30 times [2020-10-26 19:01:08,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:01:08,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697991406] [2020-10-26 19:01:08,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:01:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:08,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:11,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:13,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:13,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-26 19:01:13,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:01:13,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-26 19:01:13,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:13,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-26 19:01:13,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:01:13,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 215 [2020-10-26 19:01:13,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:01:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:01:14,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:14,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:14,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:01:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 19:01:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-26 19:01:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 19:01:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:01:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:01:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-26 19:01:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-26 19:01:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:14,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-26 19:01:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:14,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 19:01:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:14,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-26 19:01:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 19:01:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-26 19:01:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 19:01:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-26 19:01:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 19:01:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:14,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-26 19:01:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-26 19:01:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:14,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:14,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:14,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:14,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:14,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:14,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:14,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:14,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:14,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:14,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:14,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 36 proven. 775 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2020-10-26 19:01:14,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697991406] [2020-10-26 19:01:14,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:01:14,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-26 19:01:14,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712316996] [2020-10-26 19:01:14,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-26 19:01:14,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:01:14,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-26 19:01:14,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=991, Unknown=0, NotChecked=0, Total=1056 [2020-10-26 19:01:14,359 INFO L87 Difference]: Start difference. First operand 187 states and 188 transitions. Second operand 33 states. [2020-10-26 19:01:15,963 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-10-26 19:01:21,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:01:21,021 INFO L93 Difference]: Finished difference Result 225 states and 234 transitions. [2020-10-26 19:01:21,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-26 19:01:21,022 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 184 [2020-10-26 19:01:21,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:01:21,025 INFO L225 Difference]: With dead ends: 225 [2020-10-26 19:01:21,025 INFO L226 Difference]: Without dead ends: 222 [2020-10-26 19:01:21,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1189 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=663, Invalid=5817, Unknown=0, NotChecked=0, Total=6480 [2020-10-26 19:01:21,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-10-26 19:01:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 195. [2020-10-26 19:01:21,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-26 19:01:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 196 transitions. [2020-10-26 19:01:21,049 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 196 transitions. Word has length 184 [2020-10-26 19:01:21,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:01:21,049 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 196 transitions. [2020-10-26 19:01:21,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-26 19:01:21,049 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 196 transitions. [2020-10-26 19:01:21,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-26 19:01:21,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:01:21,050 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:01:21,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-26 19:01:21,050 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:01:21,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:01:21,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1583703901, now seen corresponding path program 31 times [2020-10-26 19:01:21,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:01:21,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541194570] [2020-10-26 19:01:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:01:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:21,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:22,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:26,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:26,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-26 19:01:26,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:01:26,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-26 19:01:26,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-26 19:01:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:01:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 225 [2020-10-26 19:01:26,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:01:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:01:27,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:01:27,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:27,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:01:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 19:01:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-26 19:01:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 19:01:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:01:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:01:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-26 19:01:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-26 19:01:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-26 19:01:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 19:01:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-26 19:01:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 19:01:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-26 19:01:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 19:01:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-26 19:01:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 19:01:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-26 19:01:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-26 19:01:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 19:01:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:27,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:27,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:27,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:27,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:27,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:27,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:27,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:27,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 38 proven. 849 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2020-10-26 19:01:27,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541194570] [2020-10-26 19:01:27,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:01:27,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-26 19:01:27,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984177630] [2020-10-26 19:01:27,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-26 19:01:27,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:01:27,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-26 19:01:27,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1055, Unknown=0, NotChecked=0, Total=1122 [2020-10-26 19:01:27,602 INFO L87 Difference]: Start difference. First operand 195 states and 196 transitions. Second operand 34 states. [2020-10-26 19:01:29,329 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-10-26 19:01:34,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:01:34,929 INFO L93 Difference]: Finished difference Result 233 states and 242 transitions. [2020-10-26 19:01:34,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-26 19:01:34,931 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 192 [2020-10-26 19:01:34,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:01:34,933 INFO L225 Difference]: With dead ends: 233 [2020-10-26 19:01:34,933 INFO L226 Difference]: Without dead ends: 230 [2020-10-26 19:01:34,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1239 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=672, Invalid=6134, Unknown=0, NotChecked=0, Total=6806 [2020-10-26 19:01:34,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-26 19:01:34,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 203. [2020-10-26 19:01:34,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-26 19:01:34,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 204 transitions. [2020-10-26 19:01:34,959 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 204 transitions. Word has length 192 [2020-10-26 19:01:34,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:01:34,960 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 204 transitions. [2020-10-26 19:01:34,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-26 19:01:34,960 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 204 transitions. [2020-10-26 19:01:34,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-26 19:01:34,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:01:34,962 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:01:34,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-26 19:01:34,962 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:01:34,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:01:34,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1642084413, now seen corresponding path program 32 times [2020-10-26 19:01:34,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:01:34,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002921717] [2020-10-26 19:01:34,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:01:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:35,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:37,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:40,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:40,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-26 19:01:40,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:01:40,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-26 19:01:40,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:40,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-26 19:01:40,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:01:40,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-26 19:01:40,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:01:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:01:41,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:01:41,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:01:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:41,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 19:01:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:41,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-26 19:01:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:41,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 19:01:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:01:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:41,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:01:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-26 19:01:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-26 19:01:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-26 19:01:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 19:01:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-26 19:01:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:41,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 19:01:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:41,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-26 19:01:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:41,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 19:01:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-26 19:01:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 19:01:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-26 19:01:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-26 19:01:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 19:01:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-26 19:01:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:41,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:41,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:41,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:41,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:41,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:41,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:41,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:41,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 40 proven. 927 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2020-10-26 19:01:41,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002921717] [2020-10-26 19:01:41,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:01:41,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-26 19:01:41,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360766261] [2020-10-26 19:01:41,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-26 19:01:41,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:01:41,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-26 19:01:41,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-26 19:01:41,575 INFO L87 Difference]: Start difference. First operand 203 states and 204 transitions. Second operand 35 states. [2020-10-26 19:01:43,337 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-10-26 19:01:49,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:01:49,423 INFO L93 Difference]: Finished difference Result 241 states and 250 transitions. [2020-10-26 19:01:49,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-10-26 19:01:49,425 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 200 [2020-10-26 19:01:49,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:01:49,427 INFO L225 Difference]: With dead ends: 241 [2020-10-26 19:01:49,427 INFO L226 Difference]: Without dead ends: 238 [2020-10-26 19:01:49,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1266 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=683, Invalid=6627, Unknown=0, NotChecked=0, Total=7310 [2020-10-26 19:01:49,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-26 19:01:49,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 211. [2020-10-26 19:01:49,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-26 19:01:49,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 212 transitions. [2020-10-26 19:01:49,460 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 212 transitions. Word has length 200 [2020-10-26 19:01:49,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:01:49,460 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 212 transitions. [2020-10-26 19:01:49,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-26 19:01:49,460 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 212 transitions. [2020-10-26 19:01:49,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-26 19:01:49,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:01:49,462 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:01:49,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-26 19:01:49,462 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:01:49,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:01:49,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1086218793, now seen corresponding path program 33 times [2020-10-26 19:01:49,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:01:49,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235996047] [2020-10-26 19:01:49,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:01:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:49,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:52,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:54,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:54,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-26 19:01:54,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:01:54,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-26 19:01:54,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:54,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-26 19:01:54,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:01:54,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-26 19:01:54,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:01:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:01:56,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:56,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:01:56,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:01:56,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:01:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:56,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 19:01:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-26 19:01:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 19:01:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:01:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:01:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-26 19:01:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:56,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-26 19:01:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:56,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-26 19:01:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:56,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 19:01:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:56,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-26 19:01:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:56,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 19:01:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:56,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-26 19:01:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:01:56,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 19:01:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-26 19:01:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 19:01:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-26 19:01:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-26 19:01:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 19:01:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-26 19:01:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 19:01:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:01:56,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:01:56,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:01:56,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:01:56,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:01:56,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:01:56,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:01:56,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:01:56,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:01:56,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:01:56,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:01:56,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1933 backedges. 42 proven. 1021 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2020-10-26 19:01:56,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235996047] [2020-10-26 19:01:56,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:01:56,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-26 19:01:56,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798906588] [2020-10-26 19:01:56,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-26 19:01:56,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:01:56,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-26 19:01:56,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1259, Unknown=0, NotChecked=0, Total=1332 [2020-10-26 19:01:56,227 INFO L87 Difference]: Start difference. First operand 211 states and 212 transitions. Second operand 37 states. [2020-10-26 19:01:58,530 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-10-26 19:02:05,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:02:05,512 INFO L93 Difference]: Finished difference Result 258 states and 270 transitions. [2020-10-26 19:02:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-26 19:02:05,514 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 208 [2020-10-26 19:02:05,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:02:05,516 INFO L225 Difference]: With dead ends: 258 [2020-10-26 19:02:05,516 INFO L226 Difference]: Without dead ends: 255 [2020-10-26 19:02:05,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=821, Invalid=7551, Unknown=0, NotChecked=0, Total=8372 [2020-10-26 19:02:05,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-26 19:02:05,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 219. [2020-10-26 19:02:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-10-26 19:02:05,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 220 transitions. [2020-10-26 19:02:05,545 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 220 transitions. Word has length 208 [2020-10-26 19:02:05,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:02:05,546 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 220 transitions. [2020-10-26 19:02:05,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-26 19:02:05,546 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 220 transitions. [2020-10-26 19:02:05,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-26 19:02:05,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:02:05,547 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:02:05,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-26 19:02:05,548 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:02:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:02:05,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1553516913, now seen corresponding path program 34 times [2020-10-26 19:02:05,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:02:05,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353275682] [2020-10-26 19:02:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:02:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:05,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:08,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:10,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:10,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-26 19:02:10,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:02:10,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5233 [2020-10-26 19:02:10,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:10,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-26 19:02:10,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 19:02:10,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 19:02:10,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:02:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:02:11,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:02:11,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:02:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:02:11,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:02:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 19:02:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-26 19:02:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 19:02:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:02:11,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:02:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:02:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-26 19:02:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-26 19:02:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-26 19:02:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:02:11,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 19:02:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-26 19:02:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 19:02:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-26 19:02:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 19:02:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:02:11,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-26 19:02:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 19:02:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-26 19:02:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-26 19:02:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:02:11,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 19:02:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:02:11,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-26 19:02:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:02:11,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 19:02:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:02:11,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-26 19:02:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:02:11,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:02:11,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:02:11,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:02:11,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:02:11,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:02:11,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:02:11,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 19:02:11,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:02:11,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:02:11,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2105 backedges. 44 proven. 169 refuted. 0 times theorem prover too weak. 1892 trivial. 0 not checked. [2020-10-26 19:02:11,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353275682] [2020-10-26 19:02:11,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:02:11,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-26 19:02:11,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981923571] [2020-10-26 19:02:11,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-26 19:02:11,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:02:11,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-26 19:02:11,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-26 19:02:11,387 INFO L87 Difference]: Start difference. First operand 219 states and 220 transitions. Second operand 17 states. [2020-10-26 19:02:11,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:02:11,670 INFO L93 Difference]: Finished difference Result 408 states and 410 transitions. [2020-10-26 19:02:11,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-26 19:02:11,671 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 216 [2020-10-26 19:02:11,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:02:11,674 INFO L225 Difference]: With dead ends: 408 [2020-10-26 19:02:11,674 INFO L226 Difference]: Without dead ends: 222 [2020-10-26 19:02:11,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-26 19:02:11,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-10-26 19:02:11,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 221. [2020-10-26 19:02:11,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-26 19:02:11,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 222 transitions. [2020-10-26 19:02:11,713 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 222 transitions. Word has length 216 [2020-10-26 19:02:11,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:02:11,714 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 222 transitions. [2020-10-26 19:02:11,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-26 19:02:11,714 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 222 transitions. [2020-10-26 19:02:11,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-26 19:02:11,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:02:11,720 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:02:11,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-26 19:02:11,720 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:02:11,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:02:11,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1007004367, now seen corresponding path program 35 times [2020-10-26 19:02:11,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:02:11,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283217009] [2020-10-26 19:02:11,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:02:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:02:11,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking...