/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-tiling/nr4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:07:51,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:07:51,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:07:51,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:07:51,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:07:51,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:07:51,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:07:51,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:07:51,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:07:51,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:07:51,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:07:51,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:07:51,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:07:51,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:07:51,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:07:51,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:07:51,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:07:51,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:07:51,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:07:51,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:07:51,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:07:51,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:07:51,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:07:51,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:07:51,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:07:51,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:07:51,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:07:51,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:07:51,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:07:51,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:07:51,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:07:51,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:07:51,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:07:51,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:07:51,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:07:51,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:07:51,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:07:51,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:07:51,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:07:51,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:07:51,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:07:51,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 04:07:51,830 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:07:51,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:07:51,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:07:51,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:07:51,836 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:07:51,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:07:51,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:07:51,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:07:51,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:07:51,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:07:51,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:07:51,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:07:51,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:07:51,840 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:07:51,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:07:51,841 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:07:51,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:07:51,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:07:51,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:07:51,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:07:51,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:07:51,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:07:51,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:07:51,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:07:51,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:07:51,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:07:51,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:07:51,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:07:51,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:07:51,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:07:52,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:07:52,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:07:52,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:07:52,327 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:07:52,328 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:07:52,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/nr4.c [2020-10-29 04:07:52,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20fff725b/1d39b0a03b664a04951db8e8315674fd/FLAGd08065b3b [2020-10-29 04:07:53,043 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:07:53,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/nr4.c [2020-10-29 04:07:53,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20fff725b/1d39b0a03b664a04951db8e8315674fd/FLAGd08065b3b [2020-10-29 04:07:53,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20fff725b/1d39b0a03b664a04951db8e8315674fd [2020-10-29 04:07:53,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:07:53,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:07:53,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:07:53,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:07:53,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:07:53,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:07:53" (1/1) ... [2020-10-29 04:07:53,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae908ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:53, skipping insertion in model container [2020-10-29 04:07:53,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:07:53" (1/1) ... [2020-10-29 04:07:53,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:07:53,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:07:53,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:07:53,696 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:07:53,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:07:53,767 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:07:53,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:53 WrapperNode [2020-10-29 04:07:53,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:07:53,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:07:53,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:07:53,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:07:53,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:53" (1/1) ... [2020-10-29 04:07:53,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:53" (1/1) ... [2020-10-29 04:07:53,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:53" (1/1) ... [2020-10-29 04:07:53,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:53" (1/1) ... [2020-10-29 04:07:53,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:53" (1/1) ... [2020-10-29 04:07:53,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:53" (1/1) ... [2020-10-29 04:07:53,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:53" (1/1) ... [2020-10-29 04:07:53,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:07:53,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:07:53,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:07:53,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:07:53,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:07:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:07:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:07:53,923 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:07:53,923 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 04:07:53,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 04:07:53,924 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:07:53,924 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:07:53,925 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:07:53,925 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:07:53,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:07:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 04:07:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 04:07:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:07:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:07:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:07:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:07:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:07:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:07:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:07:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:07:54,430 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:07:54,431 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 04:07:54,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:07:54 BoogieIcfgContainer [2020-10-29 04:07:54,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:07:54,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:07:54,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:07:54,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:07:54,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:07:53" (1/3) ... [2020-10-29 04:07:54,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ca2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:07:54, skipping insertion in model container [2020-10-29 04:07:54,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:53" (2/3) ... [2020-10-29 04:07:54,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ca2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:07:54, skipping insertion in model container [2020-10-29 04:07:54,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:07:54" (3/3) ... [2020-10-29 04:07:54,470 INFO L111 eAbstractionObserver]: Analyzing ICFG nr4.c [2020-10-29 04:07:54,484 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:07:54,490 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:07:54,507 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:07:54,554 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:07:54,555 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:07:54,555 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:07:54,555 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:07:54,555 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:07:54,555 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:07:54,556 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:07:54,556 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:07:54,586 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-29 04:07:54,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 04:07:54,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:54,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:54,594 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:54,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:54,604 INFO L82 PathProgramCache]: Analyzing trace with hash -71068241, now seen corresponding path program 1 times [2020-10-29 04:07:54,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:54,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634286661] [2020-10-29 04:07:54,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:54,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:55,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:55,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:55,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:07:55,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:07:55,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-10-29 04:07:55,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:55,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:55,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:55,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 04:07:55,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:55,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:07:55,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:55,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:55,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:55,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:55,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:07:55,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:55,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:55,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:55,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:55,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:55,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:55,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:55,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:55,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:55,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:07:55,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 04:07:55,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:55,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:55,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:55,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:07:55,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:55,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634286661] [2020-10-29 04:07:55,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:07:55,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 04:07:55,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954812492] [2020-10-29 04:07:55,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-29 04:07:55,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:55,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-29 04:07:55,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 04:07:55,469 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2020-10-29 04:07:55,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:55,685 INFO L93 Difference]: Finished difference Result 68 states and 89 transitions. [2020-10-29 04:07:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 04:07:55,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-29 04:07:55,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:55,696 INFO L225 Difference]: With dead ends: 68 [2020-10-29 04:07:55,696 INFO L226 Difference]: Without dead ends: 32 [2020-10-29 04:07:55,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 04:07:55,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-29 04:07:55,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-29 04:07:55,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-29 04:07:55,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-10-29 04:07:55,750 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23 [2020-10-29 04:07:55,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:55,752 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-10-29 04:07:55,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-29 04:07:55,752 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-10-29 04:07:55,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 04:07:55,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:55,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:55,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:07:55,755 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:55,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:55,762 INFO L82 PathProgramCache]: Analyzing trace with hash -2036094566, now seen corresponding path program 1 times [2020-10-29 04:07:55,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:55,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929540201] [2020-10-29 04:07:55,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:55,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:55,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:56,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:56,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:56,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:56,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:07:56,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:07:56,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1121 [2020-10-29 04:07:56,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:56,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:56,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:07:56,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:07:56,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 04:07:56,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:57,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:57,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:57,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:57,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:57,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:07:57,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:57,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:57,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:57,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:57,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:57,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:57,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:57,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:57,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:57,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 04:07:57,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:57,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:57,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:57,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:57,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18 [2020-10-29 04:07:57,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:57,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929540201] [2020-10-29 04:07:57,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:07:57,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 04:07:57,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55502047] [2020-10-29 04:07:57,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:07:57,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:57,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:07:57,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:07:57,200 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 6 states. [2020-10-29 04:07:57,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:57,576 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2020-10-29 04:07:57,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:07:57,577 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-10-29 04:07:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:57,580 INFO L225 Difference]: With dead ends: 55 [2020-10-29 04:07:57,580 INFO L226 Difference]: Without dead ends: 42 [2020-10-29 04:07:57,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:07:57,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-29 04:07:57,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2020-10-29 04:07:57,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-29 04:07:57,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-29 04:07:57,597 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 23 [2020-10-29 04:07:57,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:57,598 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-29 04:07:57,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:07:57,598 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-29 04:07:57,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-29 04:07:57,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:57,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:57,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:07:57,600 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:57,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:57,601 INFO L82 PathProgramCache]: Analyzing trace with hash -640613893, now seen corresponding path program 1 times [2020-10-29 04:07:57,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:57,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570528501] [2020-10-29 04:07:57,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:57,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:57,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-29 04:07:57,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:57,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 04:07:57,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:57,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:57,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 04:07:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:07:57,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:57,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:57,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:57,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:57,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:57,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:07:57,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:57,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:57,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:57,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:57,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:57,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:57,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:57,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:57,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:57,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:57,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:07:57,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:57,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:57,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:57,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:57,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:57,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570528501] [2020-10-29 04:07:57,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:07:57,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:07:57,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561147367] [2020-10-29 04:07:57,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:07:57,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:57,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:07:57,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:07:57,800 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2020-10-29 04:07:57,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:57,978 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2020-10-29 04:07:57,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:07:57,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-29 04:07:57,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:57,980 INFO L225 Difference]: With dead ends: 54 [2020-10-29 04:07:57,981 INFO L226 Difference]: Without dead ends: 36 [2020-10-29 04:07:57,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:07:57,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-29 04:07:57,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-10-29 04:07:57,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-29 04:07:57,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-10-29 04:07:57,992 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 26 [2020-10-29 04:07:57,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:57,992 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-10-29 04:07:57,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:07:57,993 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-10-29 04:07:57,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-29 04:07:57,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:57,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:57,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:07:57,994 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:57,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:57,995 INFO L82 PathProgramCache]: Analyzing trace with hash 113037761, now seen corresponding path program 1 times [2020-10-29 04:07:57,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:57,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380333860] [2020-10-29 04:07:57,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:58,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:58,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 04:07:58,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:07:58,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 571 [2020-10-29 04:07:58,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:58,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:58,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:07:58,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:07:58,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 04:07:58,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:58,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:58,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:58,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:58,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:58,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 04:07:58,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:58,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:58,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:58,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:07:58,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:58,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:58,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:58,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:58,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:07:58,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:58,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:58,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:58,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:58,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:58,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:58,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:58,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380333860] [2020-10-29 04:07:58,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:58,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 04:07:58,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954088096] [2020-10-29 04:07:58,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:07:58,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:58,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:07:58,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:07:58,764 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 6 states. [2020-10-29 04:07:59,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:59,007 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2020-10-29 04:07:59,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:07:59,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-29 04:07:59,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:59,009 INFO L225 Difference]: With dead ends: 56 [2020-10-29 04:07:59,009 INFO L226 Difference]: Without dead ends: 37 [2020-10-29 04:07:59,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:07:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-29 04:07:59,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-29 04:07:59,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-29 04:07:59,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2020-10-29 04:07:59,029 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 29 [2020-10-29 04:07:59,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:59,030 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2020-10-29 04:07:59,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:07:59,030 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2020-10-29 04:07:59,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-29 04:07:59,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:59,032 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:59,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:07:59,032 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:59,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:59,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1768599869, now seen corresponding path program 1 times [2020-10-29 04:07:59,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:59,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593996851] [2020-10-29 04:07:59,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:59,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:59,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:59,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:00,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 04:08:00,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:08:00,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1058 [2020-10-29 04:08:00,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:00,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:00,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:08:00,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:00,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 04:08:00,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:00,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:00,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:00,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:00,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:00,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:08:00,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:00,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:00,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:00,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:00,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:00,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:00,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:00,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:00,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:00,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:08:00,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:00,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:00,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-29 04:08:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:08:00,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1593996851] [2020-10-29 04:08:00,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:00,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 04:08:00,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828990355] [2020-10-29 04:08:00,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:08:00,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:00,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:08:00,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:08:00,301 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand 6 states. [2020-10-29 04:08:00,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:00,559 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2020-10-29 04:08:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:08:00,560 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-29 04:08:00,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:00,561 INFO L225 Difference]: With dead ends: 63 [2020-10-29 04:08:00,561 INFO L226 Difference]: Without dead ends: 41 [2020-10-29 04:08:00,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:08:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-29 04:08:00,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-10-29 04:08:00,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-29 04:08:00,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-10-29 04:08:00,578 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 32 [2020-10-29 04:08:00,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:00,579 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-10-29 04:08:00,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:08:00,581 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-10-29 04:08:00,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-29 04:08:00,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:00,584 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:00,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:08:00,584 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:00,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:00,585 INFO L82 PathProgramCache]: Analyzing trace with hash 236000387, now seen corresponding path program 2 times [2020-10-29 04:08:00,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:00,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193688142] [2020-10-29 04:08:00,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:00,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:02,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 04:08:02,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:08:02,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2009 [2020-10-29 04:08:02,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:02,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 04:08:02,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:02,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 04:08:02,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:02,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:02,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:02,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:02,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:02,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:08:02,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:02,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:02,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:02,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:02,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:02,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:02,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:02,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:02,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:02,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:02,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:08:02,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:02,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:02,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:02,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:02,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:02,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:08:02,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193688142] [2020-10-29 04:08:02,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:02,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:08:02,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718310698] [2020-10-29 04:08:02,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:08:02,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:02,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:08:02,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:08:02,796 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 7 states. [2020-10-29 04:08:03,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:03,074 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2020-10-29 04:08:03,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:08:03,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-10-29 04:08:03,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:03,076 INFO L225 Difference]: With dead ends: 68 [2020-10-29 04:08:03,076 INFO L226 Difference]: Without dead ends: 43 [2020-10-29 04:08:03,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:08:03,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-29 04:08:03,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-29 04:08:03,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-29 04:08:03,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2020-10-29 04:08:03,090 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 35 [2020-10-29 04:08:03,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:03,092 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2020-10-29 04:08:03,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:08:03,092 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2020-10-29 04:08:03,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-29 04:08:03,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:03,094 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:03,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:08:03,094 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:03,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:03,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1932811395, now seen corresponding path program 3 times [2020-10-29 04:08:03,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:03,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290975498] [2020-10-29 04:08:03,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:03,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:04,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:04,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 04:08:04,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:08:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1111 [2020-10-29 04:08:04,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:04,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:04,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 04:08:04,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:04,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 04:08:04,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:08:04,517 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-10-29 04:08:05,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:05,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:05,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:05,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:05,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:05,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:08:05,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:05,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:05,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:05,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:05,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:05,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:05,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:05,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:05,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:05,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:05,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:05,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:08:05,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:05,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:05,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:05,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:05,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:05,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:08:05,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290975498] [2020-10-29 04:08:05,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:05,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:08:05,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700932221] [2020-10-29 04:08:05,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:08:05,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:05,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:08:05,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:08:05,154 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 13 states. [2020-10-29 04:08:05,509 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2020-10-29 04:08:05,734 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-10-29 04:08:06,132 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-10-29 04:08:06,895 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-10-29 04:08:07,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:07,396 INFO L93 Difference]: Finished difference Result 87 states and 101 transitions. [2020-10-29 04:08:07,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 04:08:07,397 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2020-10-29 04:08:07,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:07,400 INFO L225 Difference]: With dead ends: 87 [2020-10-29 04:08:07,400 INFO L226 Difference]: Without dead ends: 75 [2020-10-29 04:08:07,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2020-10-29 04:08:07,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-29 04:08:07,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 45. [2020-10-29 04:08:07,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-29 04:08:07,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-10-29 04:08:07,420 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 38 [2020-10-29 04:08:07,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:07,420 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-10-29 04:08:07,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:08:07,420 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-10-29 04:08:07,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-29 04:08:07,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:07,421 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:07,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:08:07,422 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:07,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:07,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1990069697, now seen corresponding path program 1 times [2020-10-29 04:08:07,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:07,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665935463] [2020-10-29 04:08:07,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:07,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:07,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:07,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:08,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:08,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:08,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 04:08:08,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:08:08,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1513 [2020-10-29 04:08:08,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:08,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:08,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:08:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 04:08:08,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:08:09,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:09,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:09,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:09,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:09,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:09,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:09,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:09,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:09,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:09,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:09,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:09,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:09,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:09,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:09,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:09,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:09,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:09,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:09,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:09,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:09,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:09,197 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-29 04:08:09,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665935463] [2020-10-29 04:08:09,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:09,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:08:09,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062652750] [2020-10-29 04:08:09,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:08:09,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:09,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:08:09,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:08:09,200 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 11 states. [2020-10-29 04:08:09,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:09,775 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2020-10-29 04:08:09,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 04:08:09,776 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2020-10-29 04:08:09,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:09,777 INFO L225 Difference]: With dead ends: 71 [2020-10-29 04:08:09,777 INFO L226 Difference]: Without dead ends: 68 [2020-10-29 04:08:09,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2020-10-29 04:08:09,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-29 04:08:09,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 50. [2020-10-29 04:08:09,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-29 04:08:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-10-29 04:08:09,810 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 38 [2020-10-29 04:08:09,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:09,811 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-10-29 04:08:09,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:08:09,811 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-10-29 04:08:09,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-29 04:08:09,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:09,818 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:09,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:08:09,819 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:09,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:09,820 INFO L82 PathProgramCache]: Analyzing trace with hash -559234105, now seen corresponding path program 1 times [2020-10-29 04:08:09,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:09,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458824394] [2020-10-29 04:08:09,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:09,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:09,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:11,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:13,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 04:08:13,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:08:13,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3455 [2020-10-29 04:08:13,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:13,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:13,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 04:08:13,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:13,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 04:08:13,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:13,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:13,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:13,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:13,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:13,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:13,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:13,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:13,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:13,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:13,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:13,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:13,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:13,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:13,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:13,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:13,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:13,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:13,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:08:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:13,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:13,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:13,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:13,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:13,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:13,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:13,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 04:08:13,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458824394] [2020-10-29 04:08:13,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:13,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:08:13,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369827948] [2020-10-29 04:08:13,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:08:13,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:13,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:08:13,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:08:13,553 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 11 states. [2020-10-29 04:08:14,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:14,121 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2020-10-29 04:08:14,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 04:08:14,122 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 47 [2020-10-29 04:08:14,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:14,126 INFO L225 Difference]: With dead ends: 90 [2020-10-29 04:08:14,126 INFO L226 Difference]: Without dead ends: 73 [2020-10-29 04:08:14,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-10-29 04:08:14,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-29 04:08:14,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 55. [2020-10-29 04:08:14,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-29 04:08:14,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2020-10-29 04:08:14,151 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 47 [2020-10-29 04:08:14,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:14,152 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2020-10-29 04:08:14,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:08:14,152 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2020-10-29 04:08:14,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-29 04:08:14,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:14,153 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:14,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 04:08:14,154 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:14,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:14,154 INFO L82 PathProgramCache]: Analyzing trace with hash 51009213, now seen corresponding path program 2 times [2020-10-29 04:08:14,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:14,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190113553] [2020-10-29 04:08:14,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:14,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:14,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:14,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:14,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:14,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:19,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:19,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 04:08:19,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:08:19,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-29 04:08:19,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:19,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:19,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 04:08:19,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:19,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-29 04:08:19,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:19,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:19,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:19,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:19,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:19,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:19,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:08:19,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:19,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:19,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:19,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:19,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:19,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:19,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:19,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:19,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:19,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:08:19,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:19,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:19,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:19,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:08:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:19,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:19,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:19,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:19,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:19,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:19,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:19,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:19,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:19,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:19,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:19,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:19,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:08:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:19,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:19,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:19,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:19,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:19,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:19,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:19,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:19,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:19,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:19,506 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-29 04:08:19,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190113553] [2020-10-29 04:08:19,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:19,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 04:08:19,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374243468] [2020-10-29 04:08:19,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 04:08:19,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:19,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 04:08:19,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:08:19,509 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 12 states. [2020-10-29 04:08:20,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:20,488 INFO L93 Difference]: Finished difference Result 114 states and 129 transitions. [2020-10-29 04:08:20,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 04:08:20,490 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2020-10-29 04:08:20,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:20,492 INFO L225 Difference]: With dead ends: 114 [2020-10-29 04:08:20,492 INFO L226 Difference]: Without dead ends: 97 [2020-10-29 04:08:20,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2020-10-29 04:08:20,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-29 04:08:20,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 60. [2020-10-29 04:08:20,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-29 04:08:20,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2020-10-29 04:08:20,522 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 56 [2020-10-29 04:08:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:20,522 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2020-10-29 04:08:20,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 04:08:20,523 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2020-10-29 04:08:20,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-29 04:08:20,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:20,529 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:20,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 04:08:20,529 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:20,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:20,530 INFO L82 PathProgramCache]: Analyzing trace with hash -90064761, now seen corresponding path program 3 times [2020-10-29 04:08:20,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:20,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8134624] [2020-10-29 04:08:20,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:20,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:20,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:20,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:20,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:25,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 04:08:25,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-29 04:08:25,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 04:08:25,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:25,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 04:08:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:25,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 04:08:25,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:25,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:25,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:25,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:25,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:25,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:25,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:25,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:25,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:25,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:25,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:25,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:25,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:25,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:25,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:25,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:25,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:25,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:25,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:25,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:25,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:08:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:25,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:25,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:25,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:25,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:25,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:25,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:25,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:25,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:25,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:25,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:25,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:08:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:25,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:25,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:25,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:25,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:25,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:25,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:25,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:25,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:25,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:25,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:25,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 04:08:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:25,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:25,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:25,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:25,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:25,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:25,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:25,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:25,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:25,838 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-29 04:08:25,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8134624] [2020-10-29 04:08:25,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:25,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:08:25,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575870359] [2020-10-29 04:08:25,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:08:25,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:25,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:08:25,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:08:25,842 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand 14 states. [2020-10-29 04:08:26,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:26,769 INFO L93 Difference]: Finished difference Result 115 states and 133 transitions. [2020-10-29 04:08:26,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 04:08:26,770 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2020-10-29 04:08:26,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:26,774 INFO L225 Difference]: With dead ends: 115 [2020-10-29 04:08:26,774 INFO L226 Difference]: Without dead ends: 112 [2020-10-29 04:08:26,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=790, Unknown=0, NotChecked=0, Total=930 [2020-10-29 04:08:26,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-29 04:08:26,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 98. [2020-10-29 04:08:26,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-29 04:08:26,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions. [2020-10-29 04:08:26,810 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 65 [2020-10-29 04:08:26,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:26,812 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 111 transitions. [2020-10-29 04:08:26,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:08:26,812 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions. [2020-10-29 04:08:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-29 04:08:26,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:26,814 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:26,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 04:08:26,814 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:26,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:26,815 INFO L82 PathProgramCache]: Analyzing trace with hash -428765569, now seen corresponding path program 4 times [2020-10-29 04:08:26,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:26,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646504685] [2020-10-29 04:08:26,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:26,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:26,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:27,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 04:08:27,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:08:27,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-10-29 04:08:27,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:27,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:27,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 04:08:27,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:08:27,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 04:08:27,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:28,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:28,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:28,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:28,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:28,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:28,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:28,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:28,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:28,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:28,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:28,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:08:28,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:08:28,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:28,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:28,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:28,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:28,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:28,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:28,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:08:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:28,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:28,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:28,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:28,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:28,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:28,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:28,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:28,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:28,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:28,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:28,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:08:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:28,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:28,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:28,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:28,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:28,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:28,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:28,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:28,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:28,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:28,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:28,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 04:08:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:28,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:28,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:28,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:28,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:28,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:28,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:28,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:28,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:28,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:28,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:28,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 04:08:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:28,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:28,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:28,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:28,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:28,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:28,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:28,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:28,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:28,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:28,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:28,124 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-10-29 04:08:28,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646504685] [2020-10-29 04:08:28,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:28,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 04:08:28,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475787615] [2020-10-29 04:08:28,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 04:08:28,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:28,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 04:08:28,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:08:28,126 INFO L87 Difference]: Start difference. First operand 98 states and 111 transitions. Second operand 12 states. [2020-10-29 04:08:28,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:28,945 INFO L93 Difference]: Finished difference Result 137 states and 153 transitions. [2020-10-29 04:08:28,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 04:08:28,946 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 74 [2020-10-29 04:08:28,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:28,947 INFO L225 Difference]: With dead ends: 137 [2020-10-29 04:08:28,948 INFO L226 Difference]: Without dead ends: 89 [2020-10-29 04:08:28,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:08:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-29 04:08:28,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2020-10-29 04:08:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-29 04:08:28,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2020-10-29 04:08:28,965 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 74 [2020-10-29 04:08:28,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:28,966 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2020-10-29 04:08:28,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 04:08:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2020-10-29 04:08:28,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-29 04:08:28,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:28,967 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:28,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 04:08:28,967 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:28,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:28,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1304929962, now seen corresponding path program 5 times [2020-10-29 04:08:28,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:28,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956726452] [2020-10-29 04:08:28,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:29,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:29,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:29,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:29,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:29,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:29,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:29,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:30,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:31,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:31,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:31,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:34,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 04:08:34,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 04:08:34,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 04:08:34,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:34,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 04:08:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 04:08:34,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:34,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:34,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:34,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:34,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:34,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:08:34,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:34,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:34,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:34,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:34,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:34,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:34,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:34,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:34,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:34,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:34,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:34,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 04:08:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:34,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:34,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:34,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:34,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:34,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:34,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:34,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:34,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:34,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 04:08:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:34,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:34,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:34,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:34,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:34,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:34,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:34,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:34,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:34,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:34,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:34,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:08:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:34,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:34,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:34,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:34,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:34,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:34,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:34,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:34,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:34,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:34,841 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 16 proven. 105 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-29 04:08:34,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956726452] [2020-10-29 04:08:34,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:34,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 04:08:34,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705086210] [2020-10-29 04:08:34,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 04:08:34,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:34,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 04:08:34,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:08:34,851 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand 18 states. [2020-10-29 04:08:37,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:37,500 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2020-10-29 04:08:37,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 04:08:37,501 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 80 [2020-10-29 04:08:37,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:37,503 INFO L225 Difference]: With dead ends: 104 [2020-10-29 04:08:37,503 INFO L226 Difference]: Without dead ends: 101 [2020-10-29 04:08:37,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=281, Invalid=1359, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 04:08:37,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-29 04:08:37,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 85. [2020-10-29 04:08:37,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-29 04:08:37,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2020-10-29 04:08:37,523 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 80 [2020-10-29 04:08:37,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:37,524 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2020-10-29 04:08:37,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 04:08:37,524 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2020-10-29 04:08:37,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-29 04:08:37,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:37,525 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:37,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 04:08:37,525 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:37,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:37,526 INFO L82 PathProgramCache]: Analyzing trace with hash -98445380, now seen corresponding path program 6 times [2020-10-29 04:08:37,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:37,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428029856] [2020-10-29 04:08:37,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:37,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:37,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:38,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:38,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:38,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:38,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:38,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:38,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:38,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:38,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:38,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:40,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:40,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:40,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:40,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:40,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:41,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:41,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:41,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:42,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:42,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-29 04:08:42,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-29 04:08:42,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 04:08:42,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:42,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:42,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 04:08:42,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:42,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 04:08:42,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:42,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:42,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:42,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:42,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:42,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:42,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:42,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:42,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:42,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:42,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:42,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:42,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:42,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:42,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:42,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:42,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:42,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:42,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:42,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:42,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:42,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:42,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:42,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:42,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:42,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 04:08:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:42,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:42,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:42,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:42,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:42,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:42,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:42,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:42,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:42,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 04:08:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:42,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:42,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:42,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:42,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:42,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:42,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:42,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:42,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:42,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:42,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:08:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:42,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:42,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:42,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:42,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:42,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:42,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:42,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:42,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:42,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:08:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:42,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:42,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:42,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:42,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:42,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:42,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:42,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:42,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:42,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:42,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:42,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 12 proven. 112 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-10-29 04:08:42,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428029856] [2020-10-29 04:08:42,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:42,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:08:42,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887115901] [2020-10-29 04:08:42,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:08:42,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:42,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:08:42,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:08:42,950 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand 14 states. [2020-10-29 04:08:44,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:44,104 INFO L93 Difference]: Finished difference Result 139 states and 157 transitions. [2020-10-29 04:08:44,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 04:08:44,105 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 89 [2020-10-29 04:08:44,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:44,106 INFO L225 Difference]: With dead ends: 139 [2020-10-29 04:08:44,106 INFO L226 Difference]: Without dead ends: 122 [2020-10-29 04:08:44,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=700, Unknown=0, NotChecked=0, Total=812 [2020-10-29 04:08:44,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-29 04:08:44,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 90. [2020-10-29 04:08:44,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-29 04:08:44,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2020-10-29 04:08:44,128 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 89 [2020-10-29 04:08:44,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:44,128 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2020-10-29 04:08:44,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:08:44,129 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2020-10-29 04:08:44,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-29 04:08:44,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:44,130 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:44,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 04:08:44,130 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:44,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:44,130 INFO L82 PathProgramCache]: Analyzing trace with hash 455206504, now seen corresponding path program 7 times [2020-10-29 04:08:44,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:44,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380962349] [2020-10-29 04:08:44,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:44,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:45,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:45,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:49,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 04:08:49,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-29 04:08:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-29 04:08:49,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:49,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:08:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 04:08:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:49,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:49,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:49,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:49,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:49,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:49,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:49,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:49,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:49,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:49,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:49,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:49,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:49,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:49,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:49,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:49,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:49,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:49,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:49,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:49,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 04:08:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:49,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:49,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:49,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:49,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:49,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:49,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:49,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:49,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:49,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:49,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:49,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 04:08:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:49,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:49,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:49,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:49,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:49,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:49,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:49,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:08:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:49,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:49,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:49,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:49,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:49,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:49,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:49,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:49,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:08:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:49,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:49,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:49,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:49,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:49,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:49,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:49,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:49,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:08:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:49,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:49,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:49,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:49,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:49,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:49,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:49,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 15 proven. 140 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-29 04:08:49,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380962349] [2020-10-29 04:08:49,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:49,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 04:08:49,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849255708] [2020-10-29 04:08:49,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 04:08:49,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:49,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 04:08:49,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:08:49,610 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand 16 states. [2020-10-29 04:08:51,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:51,046 INFO L93 Difference]: Finished difference Result 144 states and 163 transitions. [2020-10-29 04:08:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 04:08:51,047 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 98 [2020-10-29 04:08:51,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:51,049 INFO L225 Difference]: With dead ends: 144 [2020-10-29 04:08:51,049 INFO L226 Difference]: Without dead ends: 127 [2020-10-29 04:08:51,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=1046, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 04:08:51,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-29 04:08:51,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 95. [2020-10-29 04:08:51,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-29 04:08:51,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2020-10-29 04:08:51,073 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 98 [2020-10-29 04:08:51,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:51,073 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2020-10-29 04:08:51,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 04:08:51,073 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2020-10-29 04:08:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-29 04:08:51,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:51,075 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:51,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 04:08:51,075 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:51,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:51,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1068079420, now seen corresponding path program 8 times [2020-10-29 04:08:51,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:51,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436566711] [2020-10-29 04:08:51,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:51,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:51,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:51,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:51,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:51,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:51,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:51,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:51,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:52,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:52,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:52,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:52,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:53,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:53,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:53,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:54,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:54,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:54,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:54,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-29 04:08:56,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-29 04:08:56,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 04:08:56,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:08:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 04:08:56,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:56,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:56,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:56,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:56,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:56,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:56,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:56,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:56,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:56,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:56,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:56,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 04:08:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:56,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:56,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:56,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 04:08:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:56,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:56,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:56,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:56,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:08:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:56,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:56,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:56,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:56,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:56,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:56,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:08:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:56,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:56,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:56,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:56,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:56,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:56,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:08:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:56,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:56,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:56,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:56,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:08:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:56,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:56,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:56,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:56,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:56,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:56,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,574 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 18 proven. 163 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-29 04:08:56,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436566711] [2020-10-29 04:08:56,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:56,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 04:08:56,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977477120] [2020-10-29 04:08:56,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 04:08:56,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:56,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 04:08:56,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:08:56,576 INFO L87 Difference]: Start difference. First operand 95 states and 107 transitions. Second operand 17 states. [2020-10-29 04:08:58,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:58,814 INFO L93 Difference]: Finished difference Result 168 states and 192 transitions. [2020-10-29 04:08:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 04:08:58,815 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 107 [2020-10-29 04:08:58,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:58,817 INFO L225 Difference]: With dead ends: 168 [2020-10-29 04:08:58,817 INFO L226 Difference]: Without dead ends: 151 [2020-10-29 04:08:58,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=237, Invalid=1655, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 04:08:58,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-29 04:08:58,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 100. [2020-10-29 04:08:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-29 04:08:58,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 113 transitions. [2020-10-29 04:08:58,845 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 113 transitions. Word has length 107 [2020-10-29 04:08:58,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:58,846 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 113 transitions. [2020-10-29 04:08:58,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 04:08:58,846 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 113 transitions. [2020-10-29 04:08:58,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 04:08:58,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:58,851 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:58,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 04:08:58,851 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:58,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:58,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1602497304, now seen corresponding path program 9 times [2020-10-29 04:08:58,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:58,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197726313] [2020-10-29 04:08:58,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:58,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:59,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:59,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:59,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:59,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:59,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:59,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:00,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:00,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:00,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:03,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:03,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:03,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:03,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-29 04:09:03,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-29 04:09:03,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-29 04:09:03,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:03,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 04:09:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:09:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 04:09:03,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:04,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:04,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:04,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:04,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:04,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:04,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:09:04,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:04,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:04,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:04,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:04,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:04,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:04,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:04,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:04,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:04,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:04,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:04,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:04,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 04:09:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:04,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:04,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:04,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:04,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:04,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:04,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:04,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:04,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:04,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 04:09:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:04,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:04,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:04,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:04,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:04,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:04,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:04,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:04,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:04,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:04,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:09:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:04,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:04,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:04,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:04,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:04,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:04,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:04,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:04,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:04,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:09:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:04,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:04,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:04,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:04,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:04,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:04,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:04,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:04,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:04,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:09:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:04,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:04,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:04,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:04,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:04,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:04,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:04,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:04,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:04,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:09:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:04,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:04,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:04,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:04,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:04,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:04,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:04,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:04,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:04,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:09:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:04,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:04,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:04,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:04,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:04,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:04,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 14 proven. 202 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2020-10-29 04:09:04,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197726313] [2020-10-29 04:09:04,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:04,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 04:09:04,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956794535] [2020-10-29 04:09:04,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 04:09:04,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:04,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 04:09:04,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2020-10-29 04:09:04,442 INFO L87 Difference]: Start difference. First operand 100 states and 113 transitions. Second operand 20 states. [2020-10-29 04:09:06,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:06,766 INFO L93 Difference]: Finished difference Result 180 states and 211 transitions. [2020-10-29 04:09:06,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 04:09:06,767 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 116 [2020-10-29 04:09:06,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:06,768 INFO L225 Difference]: With dead ends: 180 [2020-10-29 04:09:06,768 INFO L226 Difference]: Without dead ends: 177 [2020-10-29 04:09:06,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=254, Invalid=2098, Unknown=0, NotChecked=0, Total=2352 [2020-10-29 04:09:06,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-29 04:09:06,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 159. [2020-10-29 04:09:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-29 04:09:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 185 transitions. [2020-10-29 04:09:06,808 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 185 transitions. Word has length 116 [2020-10-29 04:09:06,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:06,809 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 185 transitions. [2020-10-29 04:09:06,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 04:09:06,809 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 185 transitions. [2020-10-29 04:09:06,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-29 04:09:06,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:06,811 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 6, 6, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:06,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 04:09:06,811 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:06,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:06,812 INFO L82 PathProgramCache]: Analyzing trace with hash -838152386, now seen corresponding path program 10 times [2020-10-29 04:09:06,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:06,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484572028] [2020-10-29 04:09:06,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:06,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:07,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:07,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-29 04:09:07,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:09:07,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1151 [2020-10-29 04:09:07,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:07,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:07,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:09:07,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:09:07,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 04:09:07,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:08,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:08,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:08,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:08,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:08,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:08,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:08,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:08,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:08,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:08,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:08,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:08,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:08,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:08,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:08,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:08,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:08,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:08,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:09:08,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:09:08,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:08,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:08,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:08,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:08,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:08,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:08,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 04:09:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:08,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:08,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:08,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:08,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:08,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:08,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:08,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:08,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 04:09:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:08,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:08,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:08,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:08,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:08,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:08,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:08,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:08,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:08,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:08,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:09:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:08,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:08,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:08,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:08,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:08,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:08,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:08,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:08,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:08,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:08,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:08,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:08,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:09:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:08,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:08,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:08,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:08,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:08,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:08,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:08,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:09:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:08,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:08,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:08,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:08,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:08,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:08,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:08,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:08,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:08,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:09:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:08,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:08,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:08,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:08,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:08,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:08,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:08,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:08,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:08,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:08,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:09:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:08,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:08,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:08,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:08,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:08,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:08,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:08,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:08,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:08,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:08,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:08,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:08,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:09:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:08,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:08,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:08,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:08,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:08,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:08,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:08,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:08,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:08,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:08,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:08,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:08,435 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 180 proven. 61 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-10-29 04:09:08,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484572028] [2020-10-29 04:09:08,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:08,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 04:09:08,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342546091] [2020-10-29 04:09:08,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 04:09:08,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:08,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 04:09:08,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:09:08,437 INFO L87 Difference]: Start difference. First operand 159 states and 185 transitions. Second operand 17 states. [2020-10-29 04:09:09,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:09,474 INFO L93 Difference]: Finished difference Result 202 states and 230 transitions. [2020-10-29 04:09:09,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 04:09:09,475 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 125 [2020-10-29 04:09:09,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:09,477 INFO L225 Difference]: With dead ends: 202 [2020-10-29 04:09:09,477 INFO L226 Difference]: Without dead ends: 129 [2020-10-29 04:09:09,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=233, Invalid=823, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 04:09:09,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-29 04:09:09,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 115. [2020-10-29 04:09:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-29 04:09:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 130 transitions. [2020-10-29 04:09:09,508 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 130 transitions. Word has length 125 [2020-10-29 04:09:09,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:09,508 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 130 transitions. [2020-10-29 04:09:09,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 04:09:09,509 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 130 transitions. [2020-10-29 04:09:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-29 04:09:09,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:09,510 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:09,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 04:09:09,511 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:09,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:09,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1633173989, now seen corresponding path program 11 times [2020-10-29 04:09:09,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:09,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882699817] [2020-10-29 04:09:09,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:09,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:09,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:09,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:09,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:11,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:13,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:13,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:14,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-29 04:09:14,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 04:09:14,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 04:09:14,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:14,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 04:09:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:09:14,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 04:09:14,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:15,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:15,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:15,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:15,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:15,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:15,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:15,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:15,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:15,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:15,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:15,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:15,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:15,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:15,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:15,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:15,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:15,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:15,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:15,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:15,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:15,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:15,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:15,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:15,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:15,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:15,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:15,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:15,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:15,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:15,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:15,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:15,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:15,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:15,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:15,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:15,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:15,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:15,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:15,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:15,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:15,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:15,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:15,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:15,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:15,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:15,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:15,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:15,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:15,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:15,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:15,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:15,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:15,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:15,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:15,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:15,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:15,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:15,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:15,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:15,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:15,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:15,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:15,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:15,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:15,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:15,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:15,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:15,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:15,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:15,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:15,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:15,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:15,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:15,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:15,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:15,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:09:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:15,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:15,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:15,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:15,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:15,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:15,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:15,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:15,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:15,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:15,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:15,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:15,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:09:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:15,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:15,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:15,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:15,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:15,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:15,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 21 proven. 329 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-29 04:09:15,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882699817] [2020-10-29 04:09:15,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:15,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 04:09:15,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222705906] [2020-10-29 04:09:15,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 04:09:15,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:15,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 04:09:15,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:09:15,451 INFO L87 Difference]: Start difference. First operand 115 states and 130 transitions. Second operand 23 states. [2020-10-29 04:09:19,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:19,650 INFO L93 Difference]: Finished difference Result 155 states and 179 transitions. [2020-10-29 04:09:19,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-29 04:09:19,651 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 131 [2020-10-29 04:09:19,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:19,653 INFO L225 Difference]: With dead ends: 155 [2020-10-29 04:09:19,653 INFO L226 Difference]: Without dead ends: 152 [2020-10-29 04:09:19,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=426, Invalid=3114, Unknown=0, NotChecked=0, Total=3540 [2020-10-29 04:09:19,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-29 04:09:19,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 125. [2020-10-29 04:09:19,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-29 04:09:19,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 142 transitions. [2020-10-29 04:09:19,683 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 142 transitions. Word has length 131 [2020-10-29 04:09:19,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:19,683 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 142 transitions. [2020-10-29 04:09:19,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 04:09:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 142 transitions. [2020-10-29 04:09:19,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-29 04:09:19,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:19,685 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:19,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 04:09:19,686 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:19,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:19,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1392726303, now seen corresponding path program 12 times [2020-10-29 04:09:19,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:19,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751192928] [2020-10-29 04:09:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:19,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:19,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:23,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:24,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:24,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-29 04:09:24,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-29 04:09:24,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-29 04:09:24,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:24,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:24,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 04:09:24,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:09:24,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 04:09:24,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:25,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:25,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:25,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:25,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:25,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:25,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:25,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:25,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:25,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:25,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:25,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:25,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:25,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:25,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:25,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:25,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:25,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:25,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:09:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:25,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:25,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:25,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:09:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:25,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:25,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:25,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:09:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:25,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:25,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:25,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,276 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 24 proven. 349 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2020-10-29 04:09:25,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751192928] [2020-10-29 04:09:25,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:25,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:09:25,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812022221] [2020-10-29 04:09:25,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:09:25,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:25,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:09:25,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:09:25,279 INFO L87 Difference]: Start difference. First operand 125 states and 142 transitions. Second operand 19 states. [2020-10-29 04:09:27,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:27,331 INFO L93 Difference]: Finished difference Result 180 states and 205 transitions. [2020-10-29 04:09:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 04:09:27,332 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 140 [2020-10-29 04:09:27,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:27,334 INFO L225 Difference]: With dead ends: 180 [2020-10-29 04:09:27,334 INFO L226 Difference]: Without dead ends: 163 [2020-10-29 04:09:27,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=166, Invalid=1556, Unknown=0, NotChecked=0, Total=1722 [2020-10-29 04:09:27,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-29 04:09:27,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 130. [2020-10-29 04:09:27,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-29 04:09:27,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 148 transitions. [2020-10-29 04:09:27,365 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 148 transitions. Word has length 140 [2020-10-29 04:09:27,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:27,365 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 148 transitions. [2020-10-29 04:09:27,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:09:27,366 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 148 transitions. [2020-10-29 04:09:27,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-29 04:09:27,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:27,368 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:27,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 04:09:27,368 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:27,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:27,368 INFO L82 PathProgramCache]: Analyzing trace with hash -98154269, now seen corresponding path program 13 times [2020-10-29 04:09:27,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:27,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259876115] [2020-10-29 04:09:27,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:27,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:29,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:29,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:29,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:29,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-29 04:09:32,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 04:09:32,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 04:09:32,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 04:09:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:09:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-29 04:09:32,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:32,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:32,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:32,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:32,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:32,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:32,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:32,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:32,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:32,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:32,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:32,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:32,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:32,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:32,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:32,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:32,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:32,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:32,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:32,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:32,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:32,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:32,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:32,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:32,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:32,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:32,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:32,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:32,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:32,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:32,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:32,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:32,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:32,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:32,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:32,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:32,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:32,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:32,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:32,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:32,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:32,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:32,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:32,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:32,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:32,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:32,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:32,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:32,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:09:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:32,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:32,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:32,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:32,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:32,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:32,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:09:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:32,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:32,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:32,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:32,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:32,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:32,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:32,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:32,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:09:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:32,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:32,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:32,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:32,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:32,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:32,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:32,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:32,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:09:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:32,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:32,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:32,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:32,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:32,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:32,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:32,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:32,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:32,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:32,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:32,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:33,046 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 27 proven. 397 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2020-10-29 04:09:33,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259876115] [2020-10-29 04:09:33,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:33,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 04:09:33,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913210664] [2020-10-29 04:09:33,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 04:09:33,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:33,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 04:09:33,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=380, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:09:33,049 INFO L87 Difference]: Start difference. First operand 130 states and 148 transitions. Second operand 21 states. [2020-10-29 04:09:35,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:35,718 INFO L93 Difference]: Finished difference Result 185 states and 211 transitions. [2020-10-29 04:09:35,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-29 04:09:35,719 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 149 [2020-10-29 04:09:35,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:35,721 INFO L225 Difference]: With dead ends: 185 [2020-10-29 04:09:35,723 INFO L226 Difference]: Without dead ends: 168 [2020-10-29 04:09:35,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=198, Invalid=2058, Unknown=0, NotChecked=0, Total=2256 [2020-10-29 04:09:35,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-29 04:09:35,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 135. [2020-10-29 04:09:35,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-29 04:09:35,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 154 transitions. [2020-10-29 04:09:35,760 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 154 transitions. Word has length 149 [2020-10-29 04:09:35,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:35,761 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 154 transitions. [2020-10-29 04:09:35,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 04:09:35,761 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 154 transitions. [2020-10-29 04:09:35,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-29 04:09:35,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:35,764 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:35,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 04:09:35,764 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:35,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:35,765 INFO L82 PathProgramCache]: Analyzing trace with hash -2118332127, now seen corresponding path program 14 times [2020-10-29 04:09:35,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:35,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [205897593] [2020-10-29 04:09:35,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:35,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:35,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:36,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:36,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:36,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:36,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:36,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:36,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:36,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:36,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:36,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:36,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-29 04:09:40,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 04:09:40,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-29 04:09:40,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 04:09:40,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:09:40,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-29 04:09:40,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:41,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:41,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:41,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:41,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:41,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:41,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:41,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:41,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:41,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:41,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:41,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:41,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:41,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:41,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:41,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:41,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:41,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:41,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:41,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:41,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:41,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:41,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:41,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:41,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:41,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:41,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:09:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:41,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:41,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:41,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:41,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:09:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:41,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:41,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:41,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:41,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:09:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:41,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:09:41,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:41,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:09:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:41,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:41,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:41,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 04:09:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:41,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:41,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:41,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:41,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:41,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:41,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:41,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:41,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:41,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:41,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:41,657 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 30 proven. 440 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-10-29 04:09:41,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [205897593] [2020-10-29 04:09:41,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:41,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 04:09:41,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86532675] [2020-10-29 04:09:41,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 04:09:41,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:41,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 04:09:41,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=420, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:09:41,659 INFO L87 Difference]: Start difference. First operand 135 states and 154 transitions. Second operand 22 states. [2020-10-29 04:09:45,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:45,481 INFO L93 Difference]: Finished difference Result 209 states and 240 transitions. [2020-10-29 04:09:45,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-29 04:09:45,485 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 158 [2020-10-29 04:09:45,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:45,486 INFO L225 Difference]: With dead ends: 209 [2020-10-29 04:09:45,486 INFO L226 Difference]: Without dead ends: 192 [2020-10-29 04:09:45,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=317, Invalid=3105, Unknown=0, NotChecked=0, Total=3422 [2020-10-29 04:09:45,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-29 04:09:45,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 140. [2020-10-29 04:09:45,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-29 04:09:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 160 transitions. [2020-10-29 04:09:45,519 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 160 transitions. Word has length 158 [2020-10-29 04:09:45,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:45,520 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 160 transitions. [2020-10-29 04:09:45,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 04:09:45,520 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 160 transitions. [2020-10-29 04:09:45,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-29 04:09:45,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:45,522 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:45,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 04:09:45,522 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:45,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:45,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1355329187, now seen corresponding path program 15 times [2020-10-29 04:09:45,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:45,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604898038] [2020-10-29 04:09:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:45,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:46,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:46,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:46,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:46,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:46,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:46,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:47,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:47,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:47,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:47,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:48,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:48,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:48,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:50,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:50,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-29 04:09:50,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-29 04:09:50,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 04:09:50,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:50,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:50,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 04:09:50,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:09:50,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-10-29 04:09:50,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:51,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:51,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:09:51,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:51,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:51,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:09:51,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:09:51,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:09:51,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:51,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:09:51,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:51,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:51,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:51,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:09:51,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:51,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:51,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:51,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:51,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:09:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:51,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:51,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:09:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:51,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:09:51,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:09:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:51,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:09:51,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:09:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:51,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:51,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 04:09:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:51,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:09:51,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 04:09:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:51,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:51,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:51,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:51,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:51,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:51,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:51,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 22 proven. 498 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2020-10-29 04:09:51,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604898038] [2020-10-29 04:09:51,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:51,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 04:09:51,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198043878] [2020-10-29 04:09:51,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 04:09:51,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:51,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 04:09:51,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=504, Unknown=0, NotChecked=0, Total=552 [2020-10-29 04:09:51,460 INFO L87 Difference]: Start difference. First operand 140 states and 160 transitions. Second operand 24 states. [2020-10-29 04:09:54,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:54,557 INFO L93 Difference]: Finished difference Result 241 states and 285 transitions. [2020-10-29 04:09:54,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-29 04:09:54,557 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 167 [2020-10-29 04:09:54,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:54,560 INFO L225 Difference]: With dead ends: 241 [2020-10-29 04:09:54,560 INFO L226 Difference]: Without dead ends: 238 [2020-10-29 04:09:54,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=285, Invalid=2795, Unknown=0, NotChecked=0, Total=3080 [2020-10-29 04:09:54,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-29 04:09:54,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 220. [2020-10-29 04:09:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-29 04:09:54,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 259 transitions. [2020-10-29 04:09:54,614 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 259 transitions. Word has length 167 [2020-10-29 04:09:54,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:54,615 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 259 transitions. [2020-10-29 04:09:54,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 04:09:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 259 transitions. [2020-10-29 04:09:54,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-29 04:09:54,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:54,618 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 9, 9, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:54,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 04:09:54,618 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:54,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:54,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1707587555, now seen corresponding path program 16 times [2020-10-29 04:09:54,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:54,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449680476] [2020-10-29 04:09:54,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:54,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:56,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:56,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-29 04:09:56,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:09:56,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2176 [2020-10-29 04:09:56,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:56,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:56,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 04:09:56,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:09:56,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-29 04:09:56,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:57,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:57,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:09:57,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:09:57,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:57,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:09:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:09:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:09:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:09:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 04:09:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 04:09:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-29 04:09:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:57,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:57,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:57,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:57,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:57,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:57,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:57,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:57,577 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 390 proven. 180 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2020-10-29 04:09:57,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449680476] [2020-10-29 04:09:57,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:57,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 04:09:57,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716320634] [2020-10-29 04:09:57,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 04:09:57,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:57,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 04:09:57,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:09:57,579 INFO L87 Difference]: Start difference. First operand 220 states and 259 transitions. Second operand 22 states. [2020-10-29 04:09:59,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:59,461 INFO L93 Difference]: Finished difference Result 267 states and 307 transitions. [2020-10-29 04:09:59,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 04:09:59,462 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 176 [2020-10-29 04:09:59,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:59,465 INFO L225 Difference]: With dead ends: 267 [2020-10-29 04:09:59,465 INFO L226 Difference]: Without dead ends: 169 [2020-10-29 04:09:59,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=394, Invalid=1412, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 04:09:59,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-29 04:09:59,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 155. [2020-10-29 04:09:59,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-29 04:09:59,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 177 transitions. [2020-10-29 04:09:59,506 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 177 transitions. Word has length 176 [2020-10-29 04:09:59,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:59,507 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 177 transitions. [2020-10-29 04:09:59,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 04:09:59,507 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 177 transitions. [2020-10-29 04:09:59,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-29 04:09:59,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:59,509 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:59,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-29 04:09:59,509 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:59,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:59,510 INFO L82 PathProgramCache]: Analyzing trace with hash -358788474, now seen corresponding path program 17 times [2020-10-29 04:09:59,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:59,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844726742] [2020-10-29 04:09:59,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:00,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:00,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:00,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:00,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:00,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:00,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:00,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:00,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:01,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:01,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:01,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:01,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:01,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:02,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:03,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:04,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:04,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 04:10:04,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-29 04:10:04,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 04:10:04,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:04,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-29 04:10:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:10:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-29 04:10:04,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:05,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:10:05,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:05,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:05,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:05,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:10:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:05,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:05,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:10:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:05,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:05,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 04:10:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:05,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:05,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:05,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 04:10:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:05,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:05,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:05,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-29 04:10:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:10:05,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:05,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 04:10:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:05,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:05,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:05,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-29 04:10:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:05,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:05,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:05,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-29 04:10:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:05,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:05,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:05,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-29 04:10:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:05,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:05,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:05,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-29 04:10:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:05,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:05,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:05,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-29 04:10:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:05,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:05,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:05,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:05,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:05,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:05,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:05,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:05,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:05,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:05,794 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 27 proven. 697 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2020-10-29 04:10:05,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844726742] [2020-10-29 04:10:05,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:05,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-29 04:10:05,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628053349] [2020-10-29 04:10:05,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-29 04:10:05,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:05,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-29 04:10:05,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2020-10-29 04:10:05,796 INFO L87 Difference]: Start difference. First operand 155 states and 177 transitions. Second operand 30 states. [2020-10-29 04:10:10,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:10,491 INFO L93 Difference]: Finished difference Result 276 states and 326 transitions. [2020-10-29 04:10:10,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-29 04:10:10,492 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 182 [2020-10-29 04:10:10,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:10,494 INFO L225 Difference]: With dead ends: 276 [2020-10-29 04:10:10,494 INFO L226 Difference]: Without dead ends: 273 [2020-10-29 04:10:10,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=278, Invalid=4278, Unknown=0, NotChecked=0, Total=4556 [2020-10-29 04:10:10,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-10-29 04:10:10,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 248. [2020-10-29 04:10:10,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-10-29 04:10:10,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 294 transitions. [2020-10-29 04:10:10,560 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 294 transitions. Word has length 182 [2020-10-29 04:10:10,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:10,561 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 294 transitions. [2020-10-29 04:10:10,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-29 04:10:10,561 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 294 transitions. [2020-10-29 04:10:10,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-29 04:10:10,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:10,563 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 13, 12, 12, 12, 11, 11, 11, 11, 11, 9, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:10:10,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-29 04:10:10,563 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:10,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:10,564 INFO L82 PathProgramCache]: Analyzing trace with hash 898216716, now seen corresponding path program 18 times [2020-10-29 04:10:10,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:10,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591785211] [2020-10-29 04:10:10,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:10,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:10,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:10,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:10,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:13,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:15,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:15,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:15,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-29 04:10:15,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-29 04:10:15,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 04:10:15,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:15,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-29 04:10:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:10:15,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-29 04:10:15,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:16,339 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2020-10-29 04:10:16,878 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2020-10-29 04:10:17,271 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-10-29 04:10:17,828 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2020-10-29 04:10:18,044 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 40 [2020-10-29 04:10:18,495 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 40 [2020-10-29 04:10:18,753 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 44 [2020-10-29 04:10:19,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:19,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:10:19,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:19,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:19,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:19,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:19,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:19,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:10:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:10:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:10:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:10:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:10:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:10:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:10:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 04:10:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:10:19,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:10:19,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 04:10:19,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 04:10:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:19,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:19,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-29 04:10:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:19,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:19,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-29 04:10:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:19,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:19,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:19,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:19,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:10:19,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 202 proven. 579 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-10-29 04:10:19,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591785211] [2020-10-29 04:10:19,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:19,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-29 04:10:19,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002886946] [2020-10-29 04:10:19,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-29 04:10:19,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:19,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-29 04:10:19,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=917, Unknown=0, NotChecked=0, Total=992 [2020-10-29 04:10:19,834 INFO L87 Difference]: Start difference. First operand 248 states and 294 transitions. Second operand 32 states. [2020-10-29 04:10:21,406 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-29 04:10:21,743 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-29 04:10:22,270 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 45 [2020-10-29 04:10:22,590 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-10-29 04:10:22,867 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 55 [2020-10-29 04:10:23,263 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2020-10-29 04:10:23,458 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-29 04:10:23,938 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2020-10-29 04:10:24,212 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2020-10-29 04:10:24,485 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2020-10-29 04:10:24,991 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2020-10-29 04:10:25,396 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 43 [2020-10-29 04:10:25,733 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2020-10-29 04:10:26,163 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 45 [2020-10-29 04:10:26,493 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 55 [2020-10-29 04:10:26,951 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 54 [2020-10-29 04:10:27,386 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2020-10-29 04:10:27,958 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2020-10-29 04:10:28,479 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 50 [2020-10-29 04:10:28,702 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2020-10-29 04:10:29,114 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2020-10-29 04:10:29,528 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2020-10-29 04:10:29,933 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 48 [2020-10-29 04:10:32,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:32,044 INFO L93 Difference]: Finished difference Result 401 states and 482 transitions. [2020-10-29 04:10:32,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-29 04:10:32,047 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 185 [2020-10-29 04:10:32,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:32,051 INFO L225 Difference]: With dead ends: 401 [2020-10-29 04:10:32,051 INFO L226 Difference]: Without dead ends: 369 [2020-10-29 04:10:32,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1193 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=445, Invalid=5105, Unknown=0, NotChecked=0, Total=5550 [2020-10-29 04:10:32,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-29 04:10:32,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 317. [2020-10-29 04:10:32,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-10-29 04:10:32,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 381 transitions. [2020-10-29 04:10:32,136 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 381 transitions. Word has length 185 [2020-10-29 04:10:32,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:32,136 INFO L481 AbstractCegarLoop]: Abstraction has 317 states and 381 transitions. [2020-10-29 04:10:32,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-29 04:10:32,137 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 381 transitions. [2020-10-29 04:10:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-29 04:10:32,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:32,139 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 13, 12, 12, 12, 11, 11, 11, 11, 11, 10, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:10:32,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-29 04:10:32,139 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:32,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:32,140 INFO L82 PathProgramCache]: Analyzing trace with hash 650070222, now seen corresponding path program 19 times [2020-10-29 04:10:32,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:32,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160607273] [2020-10-29 04:10:32,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:32,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:32,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:32,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:32,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:33,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:33,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:33,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:33,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:33,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:35,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:35,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:36,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:37,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:37,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-29 04:10:37,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-29 04:10:37,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-29 04:10:37,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:37,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-29 04:10:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:10:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 04:10:37,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:37,689 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 33 [2020-10-29 04:10:37,834 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 37 [2020-10-29 04:10:39,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:39,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:10:39,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:39,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:39,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:10:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:10:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:10:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:10:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:10:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:10:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:10:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 04:10:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:39,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:39,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 04:10:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:39,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:39,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:39,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-29 04:10:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:39,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:39,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:39,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-29 04:10:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:39,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:39,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:39,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 208 proven. 552 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2020-10-29 04:10:39,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160607273] [2020-10-29 04:10:39,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:39,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-29 04:10:39,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752704484] [2020-10-29 04:10:39,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-29 04:10:39,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:39,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-29 04:10:39,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=818, Unknown=0, NotChecked=0, Total=930 [2020-10-29 04:10:39,417 INFO L87 Difference]: Start difference. First operand 317 states and 381 transitions. Second operand 31 states. [2020-10-29 04:10:41,562 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-29 04:10:44,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:44,465 INFO L93 Difference]: Finished difference Result 388 states and 462 transitions. [2020-10-29 04:10:44,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 04:10:44,465 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 185 [2020-10-29 04:10:44,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:44,467 INFO L225 Difference]: With dead ends: 388 [2020-10-29 04:10:44,468 INFO L226 Difference]: Without dead ends: 270 [2020-10-29 04:10:44,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=613, Invalid=2693, Unknown=0, NotChecked=0, Total=3306 [2020-10-29 04:10:44,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-29 04:10:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 254. [2020-10-29 04:10:44,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-29 04:10:44,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 298 transitions. [2020-10-29 04:10:44,526 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 298 transitions. Word has length 185 [2020-10-29 04:10:44,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:44,527 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 298 transitions. [2020-10-29 04:10:44,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-29 04:10:44,527 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 298 transitions. [2020-10-29 04:10:44,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-29 04:10:44,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:44,529 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 13, 12, 12, 12, 11, 11, 11, 11, 11, 9, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:10:44,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-29 04:10:44,529 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:44,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:44,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1751105562, now seen corresponding path program 20 times [2020-10-29 04:10:44,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:44,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289323266] [2020-10-29 04:10:44,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:44,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:47,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:47,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:48,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-29 04:10:49,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 04:10:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 04:10:49,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-29 04:10:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:10:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 04:10:49,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:50,816 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 41 [2020-10-29 04:10:50,995 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2020-10-29 04:10:51,187 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-10-29 04:10:51,374 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2020-10-29 04:10:51,581 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2020-10-29 04:10:51,875 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2020-10-29 04:10:52,184 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2020-10-29 04:10:52,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:52,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:10:52,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:52,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:52,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:52,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:52,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:52,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:52,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:52,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:10:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:52,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:52,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:52,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:52,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:10:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:52,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:52,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:52,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:52,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:10:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:52,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:52,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:52,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:52,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:10:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:52,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:10:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 04:10:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:52,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:10:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:52,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:52,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:10:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:52,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:52,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:10:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:52,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:52,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 04:10:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:52,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:52,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 04:10:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:52,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:52,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:52,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:52,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-29 04:10:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:52,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:52,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:52,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:52,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-29 04:10:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:52,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:52,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:52,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:52,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:52,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:52,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:52,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:52,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:52,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 189 proven. 508 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2020-10-29 04:10:52,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289323266] [2020-10-29 04:10:52,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:52,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-29 04:10:52,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948287599] [2020-10-29 04:10:52,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-29 04:10:52,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:52,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-29 04:10:52,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2020-10-29 04:10:52,956 INFO L87 Difference]: Start difference. First operand 254 states and 298 transitions. Second operand 30 states. [2020-10-29 04:10:54,283 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-29 04:10:54,550 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-29 04:10:54,866 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-29 04:10:55,143 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-29 04:10:55,591 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-10-29 04:10:55,819 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-29 04:10:56,159 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2020-10-29 04:10:56,562 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-10-29 04:10:57,087 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 35 [2020-10-29 04:10:57,490 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-10-29 04:10:57,795 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-10-29 04:10:57,984 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2020-10-29 04:10:58,252 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-29 04:10:58,541 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 40 [2020-10-29 04:10:58,928 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2020-10-29 04:10:59,243 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-10-29 04:10:59,579 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-29 04:10:59,995 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2020-10-29 04:11:00,459 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2020-10-29 04:11:00,826 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-10-29 04:11:03,266 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-29 04:11:03,890 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2020-10-29 04:11:04,272 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-10-29 04:11:04,688 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-29 04:11:05,064 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2020-10-29 04:11:05,284 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-29 04:11:05,513 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-10-29 04:11:05,899 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-10-29 04:11:06,855 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2020-10-29 04:11:07,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:07,898 INFO L93 Difference]: Finished difference Result 429 states and 508 transitions. [2020-10-29 04:11:07,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-29 04:11:07,899 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 185 [2020-10-29 04:11:07,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:07,903 INFO L225 Difference]: With dead ends: 429 [2020-10-29 04:11:07,903 INFO L226 Difference]: Without dead ends: 373 [2020-10-29 04:11:07,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1421 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=671, Invalid=5335, Unknown=0, NotChecked=0, Total=6006 [2020-10-29 04:11:07,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-10-29 04:11:07,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 283. [2020-10-29 04:11:07,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-29 04:11:07,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 335 transitions. [2020-10-29 04:11:07,984 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 335 transitions. Word has length 185 [2020-10-29 04:11:07,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:07,984 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 335 transitions. [2020-10-29 04:11:07,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-29 04:11:07,984 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 335 transitions. [2020-10-29 04:11:07,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-29 04:11:07,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:07,987 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 13, 12, 12, 12, 11, 11, 11, 11, 11, 10, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:07,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-29 04:11:07,987 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:07,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:07,987 INFO L82 PathProgramCache]: Analyzing trace with hash 912071900, now seen corresponding path program 21 times [2020-10-29 04:11:07,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:07,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466418956] [2020-10-29 04:11:07,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:08,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:08,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:08,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:08,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:08,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:10,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:10,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:10,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:12,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:13,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:13,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-29 04:11:13,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 04:11:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 04:11:13,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:13,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-29 04:11:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 04:11:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:13,613 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 30 [2020-10-29 04:11:14,253 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2020-10-29 04:11:14,408 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-10-29 04:11:14,643 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2020-10-29 04:11:15,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:15,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:15,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:15,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:15,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:11:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:15,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:15,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:11:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:15,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:15,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:15,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:15,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:11:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:15,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:15,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:15,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:15,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:11:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:15,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:11:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:15,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:15,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:11:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:15,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:15,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:11:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:15,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 04:11:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:15,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:15,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 04:11:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:15,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:15,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-29 04:11:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:15,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-29 04:11:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:15,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:16,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 262 proven. 398 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2020-10-29 04:11:16,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466418956] [2020-10-29 04:11:16,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:16,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-29 04:11:16,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659250484] [2020-10-29 04:11:16,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-29 04:11:16,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:16,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-29 04:11:16,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2020-10-29 04:11:16,133 INFO L87 Difference]: Start difference. First operand 283 states and 335 transitions. Second operand 30 states. [2020-10-29 04:11:17,962 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 36 [2020-10-29 04:11:20,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:20,604 INFO L93 Difference]: Finished difference Result 404 states and 475 transitions. [2020-10-29 04:11:20,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 04:11:20,605 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 185 [2020-10-29 04:11:20,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:20,607 INFO L225 Difference]: With dead ends: 404 [2020-10-29 04:11:20,607 INFO L226 Difference]: Without dead ends: 285 [2020-10-29 04:11:20,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=637, Invalid=2119, Unknown=0, NotChecked=0, Total=2756 [2020-10-29 04:11:20,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-29 04:11:20,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 261. [2020-10-29 04:11:20,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-29 04:11:20,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 305 transitions. [2020-10-29 04:11:20,684 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 305 transitions. Word has length 185 [2020-10-29 04:11:20,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:20,685 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 305 transitions. [2020-10-29 04:11:20,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-29 04:11:20,685 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 305 transitions. [2020-10-29 04:11:20,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-29 04:11:20,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:20,687 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 14, 12, 12, 12, 11, 11, 11, 11, 11, 9, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:20,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-29 04:11:20,687 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:20,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:20,688 INFO L82 PathProgramCache]: Analyzing trace with hash 757955078, now seen corresponding path program 22 times [2020-10-29 04:11:20,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:20,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318469971] [2020-10-29 04:11:20,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:20,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:20,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:20,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:20,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:20,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:20,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:20,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:20,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:20,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:21,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:21,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:23,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:23,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:23,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-29 04:11:25,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-29 04:11:25,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 04:11:25,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:11:25,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:25,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 04:11:25,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:25,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:25,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:25,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:25,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:25,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:25,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:25,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:25,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:11:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:25,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:25,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:25,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:11:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:25,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:25,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:11:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:25,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:25,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:25,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:11:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:25,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:25,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:25,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 04:11:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:25,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:25,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:11:25,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-29 04:11:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:25,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:25,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:25,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 04:11:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:25,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:25,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-29 04:11:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:25,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:25,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:25,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-29 04:11:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:25,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:25,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-29 04:11:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:25,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:25,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-29 04:11:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:25,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:25,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:25,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:25,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:25,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:25,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1103 backedges. 178 proven. 144 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2020-10-29 04:11:25,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318469971] [2020-10-29 04:11:25,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:25,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:11:25,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066157625] [2020-10-29 04:11:25,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:11:25,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:25,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:11:25,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:11:25,995 INFO L87 Difference]: Start difference. First operand 261 states and 305 transitions. Second operand 8 states. [2020-10-29 04:11:26,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:26,293 INFO L93 Difference]: Finished difference Result 406 states and 473 transitions. [2020-10-29 04:11:26,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 04:11:26,294 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 188 [2020-10-29 04:11:26,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:26,296 INFO L225 Difference]: With dead ends: 406 [2020-10-29 04:11:26,296 INFO L226 Difference]: Without dead ends: 168 [2020-10-29 04:11:26,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:11:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-29 04:11:26,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 163. [2020-10-29 04:11:26,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-29 04:11:26,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 179 transitions. [2020-10-29 04:11:26,348 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 179 transitions. Word has length 188 [2020-10-29 04:11:26,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:26,349 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 179 transitions. [2020-10-29 04:11:26,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:11:26,349 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 179 transitions. [2020-10-29 04:11:26,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-29 04:11:26,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:26,351 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 13, 13, 13, 12, 12, 12, 12, 12, 12, 9, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:26,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-29 04:11:26,351 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:26,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:26,352 INFO L82 PathProgramCache]: Analyzing trace with hash -90586272, now seen corresponding path program 23 times [2020-10-29 04:11:26,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:26,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381274544] [2020-10-29 04:11:26,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:26,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking...