/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/loop-lit/mcmillan2006.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:42:20,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:42:20,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:42:20,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:42:20,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:42:20,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:42:20,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:42:20,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:42:20,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:42:20,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:42:20,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:42:20,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:42:20,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:42:20,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:42:20,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:42:20,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:42:20,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:42:20,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:42:20,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:42:20,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:42:20,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:42:20,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:42:20,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:42:20,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:42:20,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:42:20,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:42:20,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:42:21,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:42:21,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:42:21,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:42:21,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:42:21,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:42:21,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:42:21,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:42:21,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:42:21,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:42:21,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:42:21,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:42:21,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:42:21,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:42:21,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:42:21,022 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 [2020-10-27 01:42:21,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:42:21,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:42:21,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:42:21,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:42:21,077 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:42:21,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:42:21,078 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:42:21,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:42:21,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:42:21,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:42:21,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:42:21,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:42:21,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:42:21,080 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:42:21,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:42:21,081 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:42:21,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:42:21,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:42:21,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:42:21,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:42:21,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:42:21,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:42:21,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:42:21,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:42:21,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:42:21,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:42:21,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:42:21,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:42:21,084 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:42:21,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:42:21,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:42:21,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:42:21,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:42:21,545 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:42:21,546 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:42:21,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/mcmillan2006.i [2020-10-27 01:42:21,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52772f910/ceef3c786b1d4e72803545a80c57990c/FLAG7bc0c7136 [2020-10-27 01:42:22,416 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:42:22,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/mcmillan2006.i [2020-10-27 01:42:22,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52772f910/ceef3c786b1d4e72803545a80c57990c/FLAG7bc0c7136 [2020-10-27 01:42:22,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52772f910/ceef3c786b1d4e72803545a80c57990c [2020-10-27 01:42:22,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:42:22,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:42:22,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:42:22,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:42:22,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:42:22,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:42:22" (1/1) ... [2020-10-27 01:42:22,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2572bbeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:42:22, skipping insertion in model container [2020-10-27 01:42:22,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:42:22" (1/1) ... [2020-10-27 01:42:22,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:42:22,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:42:22,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:42:22,984 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:42:23,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:42:23,020 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:42:23,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:42:23 WrapperNode [2020-10-27 01:42:23,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:42:23,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:42:23,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:42:23,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:42:23,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:42:23" (1/1) ... [2020-10-27 01:42:23,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:42:23" (1/1) ... [2020-10-27 01:42:23,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:42:23" (1/1) ... [2020-10-27 01:42:23,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:42:23" (1/1) ... [2020-10-27 01:42:23,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:42:23" (1/1) ... [2020-10-27 01:42:23,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:42:23" (1/1) ... [2020-10-27 01:42:23,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:42:23" (1/1) ... [2020-10-27 01:42:23,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:42:23,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:42:23,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:42:23,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:42:23,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:42:23" (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 [2020-10-27 01:42:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:42:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:42:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:42:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 01:42:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 01:42:23,132 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:42:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 01:42:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:42:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:42:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 01:42:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 01:42:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:42:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:42:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 01:42:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 01:42:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 01:42:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:42:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 01:42:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:42:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:42:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:42:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:42:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:42:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:42:23,428 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:42:23,429 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-27 01:42:23,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:42:23 BoogieIcfgContainer [2020-10-27 01:42:23,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:42:23,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:42:23,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:42:23,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:42:23,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:42:22" (1/3) ... [2020-10-27 01:42:23,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68895f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:42:23, skipping insertion in model container [2020-10-27 01:42:23,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:42:23" (2/3) ... [2020-10-27 01:42:23,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68895f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:42:23, skipping insertion in model container [2020-10-27 01:42:23,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:42:23" (3/3) ... [2020-10-27 01:42:23,442 INFO L111 eAbstractionObserver]: Analyzing ICFG mcmillan2006.i [2020-10-27 01:42:23,456 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:42:23,461 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:42:23,475 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:42:23,507 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:42:23,508 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:42:23,508 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:42:23,508 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:42:23,508 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:42:23,508 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:42:23,509 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:42:23,509 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:42:23,532 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-27 01:42:23,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 01:42:23,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:23,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:23,550 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:23,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:23,568 INFO L82 PathProgramCache]: Analyzing trace with hash -10485535, now seen corresponding path program 1 times [2020-10-27 01:42:23,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:23,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326474037] [2020-10-27 01:42:23,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:23,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:23,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:23,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 01:42:23,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:23,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-27 01:42:23,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:23,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 01:42:23,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:23,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:42:23,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:23,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:24,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:24,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:24,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:24,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 01:42:24,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:24,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:24,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:24,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:24,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:42:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:42:24,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326474037] [2020-10-27 01:42:24,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:42:24,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 01:42:24,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441701307] [2020-10-27 01:42:24,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 01:42:24,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:24,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 01:42:24,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 01:42:24,095 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2020-10-27 01:42:24,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:24,242 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2020-10-27 01:42:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:42:24,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-27 01:42:24,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:24,252 INFO L225 Difference]: With dead ends: 50 [2020-10-27 01:42:24,252 INFO L226 Difference]: Without dead ends: 22 [2020-10-27 01:42:24,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 01:42:24,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-27 01:42:24,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-27 01:42:24,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-27 01:42:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-10-27 01:42:24,304 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-10-27 01:42:24,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:24,305 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-10-27 01:42:24,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 01:42:24,305 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-10-27 01:42:24,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 01:42:24,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:24,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:24,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:42:24,307 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:24,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:24,308 INFO L82 PathProgramCache]: Analyzing trace with hash -2050660645, now seen corresponding path program 1 times [2020-10-27 01:42:24,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:24,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794094725] [2020-10-27 01:42:24,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:24,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:24,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:24,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 01:42:24,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:24,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-27 01:42:24,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:24,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:42:24,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:24,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 01:42:24,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:24,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:24,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:24,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:24,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:24,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:24,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 01:42:24,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:24,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:42:24,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794094725] [2020-10-27 01:42:24,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:42:24,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:42:24,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198912330] [2020-10-27 01:42:24,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:42:24,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:24,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:42:24,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:42:24,686 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 6 states. [2020-10-27 01:42:24,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:24,809 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2020-10-27 01:42:24,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:42:24,810 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-27 01:42:24,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:24,811 INFO L225 Difference]: With dead ends: 38 [2020-10-27 01:42:24,812 INFO L226 Difference]: Without dead ends: 24 [2020-10-27 01:42:24,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:42:24,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-27 01:42:24,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-10-27 01:42:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-27 01:42:24,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-10-27 01:42:24,822 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-10-27 01:42:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:24,822 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-10-27 01:42:24,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:42:24,823 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-10-27 01:42:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 01:42:24,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:24,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:24,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:42:24,825 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:24,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:24,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1708164217, now seen corresponding path program 1 times [2020-10-27 01:42:24,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:24,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959039140] [2020-10-27 01:42:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:24,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:25,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:25,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 01:42:25,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:25,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-27 01:42:25,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:25,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:42:25,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:25,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 01:42:25,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:25,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:25,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:25,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:25,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:25,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:25,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:42:25,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:25,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:25,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:25,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:25,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:42:25,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959039140] [2020-10-27 01:42:25,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:25,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 01:42:25,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765481497] [2020-10-27 01:42:25,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 01:42:25,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:25,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 01:42:25,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:42:25,351 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 9 states. [2020-10-27 01:42:25,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:25,665 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-10-27 01:42:25,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 01:42:25,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-27 01:42:25,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:25,667 INFO L225 Difference]: With dead ends: 36 [2020-10-27 01:42:25,668 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 01:42:25,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-27 01:42:25,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 01:42:25,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2020-10-27 01:42:25,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-27 01:42:25,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-27 01:42:25,678 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 18 [2020-10-27 01:42:25,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:25,679 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-27 01:42:25,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 01:42:25,679 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-27 01:42:25,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-27 01:42:25,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:25,680 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:25,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:42:25,680 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:25,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:25,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1689481005, now seen corresponding path program 1 times [2020-10-27 01:42:25,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:25,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697743243] [2020-10-27 01:42:25,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:25,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:25,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:25,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 01:42:25,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:25,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-27 01:42:25,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:25,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:42:25,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:25,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 01:42:25,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:25,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:25,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:25,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:25,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:25,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:25,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:42:25,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:25,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:25,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:25,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:25,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:25,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 01:42:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:25,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:25,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:25,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:25,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:25,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:42:25,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:25,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:25,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:25,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:25,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:25,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:42:25,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697743243] [2020-10-27 01:42:25,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:25,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 01:42:25,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150379383] [2020-10-27 01:42:25,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:42:25,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:25,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:42:25,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:42:25,952 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 8 states. [2020-10-27 01:42:26,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:26,092 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2020-10-27 01:42:26,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:42:26,092 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-10-27 01:42:26,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:26,095 INFO L225 Difference]: With dead ends: 50 [2020-10-27 01:42:26,096 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 01:42:26,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-27 01:42:26,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 01:42:26,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-10-27 01:42:26,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-27 01:42:26,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-10-27 01:42:26,108 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 26 [2020-10-27 01:42:26,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:26,108 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-10-27 01:42:26,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:42:26,109 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-10-27 01:42:26,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 01:42:26,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:26,110 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:26,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 01:42:26,110 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:26,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:26,111 INFO L82 PathProgramCache]: Analyzing trace with hash -151142159, now seen corresponding path program 2 times [2020-10-27 01:42:26,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:26,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840309685] [2020-10-27 01:42:26,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:26,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:26,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:26,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 01:42:26,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:26,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-27 01:42:26,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:26,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 01:42:26,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:26,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 01:42:26,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:26,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:26,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:26,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:26,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:26,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:26,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:26,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:26,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:26,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 01:42:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:26,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:26,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:26,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:26,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:26,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 01:42:26,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:26,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:26,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:26,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:26,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:42:26,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840309685] [2020-10-27 01:42:26,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:26,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 01:42:26,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227404943] [2020-10-27 01:42:26,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 01:42:26,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:26,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 01:42:26,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-27 01:42:26,495 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 11 states. [2020-10-27 01:42:26,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:26,881 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-27 01:42:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 01:42:26,882 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2020-10-27 01:42:26,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:26,883 INFO L225 Difference]: With dead ends: 46 [2020-10-27 01:42:26,883 INFO L226 Difference]: Without dead ends: 42 [2020-10-27 01:42:26,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2020-10-27 01:42:26,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-27 01:42:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2020-10-27 01:42:26,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-27 01:42:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-27 01:42:26,893 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 28 [2020-10-27 01:42:26,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:26,893 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-27 01:42:26,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 01:42:26,894 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-27 01:42:26,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-27 01:42:26,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:26,895 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:26,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 01:42:26,895 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:26,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:26,896 INFO L82 PathProgramCache]: Analyzing trace with hash 965858635, now seen corresponding path program 3 times [2020-10-27 01:42:26,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:26,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557385935] [2020-10-27 01:42:26,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:26,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:27,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:27,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 01:42:27,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:27,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-27 01:42:27,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 01:42:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 01:42:27,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:27,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:27,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:27,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:27,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:27,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:27,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:42:27,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:27,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 01:42:27,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 01:42:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:27,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:27,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:27,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:27,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:27,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 01:42:27,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:27,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:27,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 01:42:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:27,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:27,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:27,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:27,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:27,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:42:27,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:27,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:27,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:27,225 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 01:42:27,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557385935] [2020-10-27 01:42:27,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:27,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 01:42:27,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840681566] [2020-10-27 01:42:27,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 01:42:27,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:27,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 01:42:27,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 01:42:27,229 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 10 states. [2020-10-27 01:42:27,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:27,405 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2020-10-27 01:42:27,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 01:42:27,406 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2020-10-27 01:42:27,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:27,407 INFO L225 Difference]: With dead ends: 64 [2020-10-27 01:42:27,407 INFO L226 Difference]: Without dead ends: 42 [2020-10-27 01:42:27,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-10-27 01:42:27,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-27 01:42:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-10-27 01:42:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 01:42:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-27 01:42:27,417 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 36 [2020-10-27 01:42:27,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:27,417 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-27 01:42:27,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 01:42:27,417 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-27 01:42:27,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-27 01:42:27,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:27,419 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:27,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 01:42:27,419 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:27,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:27,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1068238871, now seen corresponding path program 4 times [2020-10-27 01:42:27,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:27,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972955376] [2020-10-27 01:42:27,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:27,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:27,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:27,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 01:42:27,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:27,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-27 01:42:27,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:27,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 01:42:27,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:27,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 01:42:27,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:27,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:27,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:27,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:27,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:27,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:27,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:27,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:27,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:27,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:27,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:27,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:27,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 01:42:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:27,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:27,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:27,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:27,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:27,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:27,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:27,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:27,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:27,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:27,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 01:42:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:27,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:27,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:27,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:27,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:27,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:27,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:27,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:27,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:27,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:27,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:27,841 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 01:42:27,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972955376] [2020-10-27 01:42:27,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:27,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 01:42:27,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602371918] [2020-10-27 01:42:27,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 01:42:27,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:27,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 01:42:27,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-27 01:42:27,844 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 13 states. [2020-10-27 01:42:28,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:28,289 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-10-27 01:42:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 01:42:28,289 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2020-10-27 01:42:28,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:28,293 INFO L225 Difference]: With dead ends: 56 [2020-10-27 01:42:28,293 INFO L226 Difference]: Without dead ends: 52 [2020-10-27 01:42:28,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2020-10-27 01:42:28,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-27 01:42:28,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2020-10-27 01:42:28,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-27 01:42:28,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2020-10-27 01:42:28,310 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 38 [2020-10-27 01:42:28,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:28,311 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2020-10-27 01:42:28,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 01:42:28,312 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2020-10-27 01:42:28,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-27 01:42:28,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:28,313 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:28,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 01:42:28,314 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:28,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:28,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1587385411, now seen corresponding path program 5 times [2020-10-27 01:42:28,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:28,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025340591] [2020-10-27 01:42:28,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:28,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:28,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:28,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-27 01:42:28,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:28,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-27 01:42:28,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:28,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 01:42:28,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:28,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 01:42:28,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:28,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:28,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:28,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:28,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:28,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:28,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:28,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:28,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:28,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:28,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:28,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:28,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 01:42:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:28,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:28,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:28,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:28,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:28,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:28,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:28,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:28,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:28,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 01:42:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:28,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:28,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:28,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:28,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:28,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 01:42:28,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:28,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 01:42:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:28,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:28,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:28,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:28,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:28,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:28,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:28,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:28,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 01:42:28,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025340591] [2020-10-27 01:42:28,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:28,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 01:42:28,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937837119] [2020-10-27 01:42:28,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 01:42:28,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:28,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 01:42:28,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:42:28,731 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 12 states. [2020-10-27 01:42:28,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:28,949 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2020-10-27 01:42:28,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 01:42:28,950 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-10-27 01:42:28,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:28,951 INFO L225 Difference]: With dead ends: 78 [2020-10-27 01:42:28,951 INFO L226 Difference]: Without dead ends: 52 [2020-10-27 01:42:28,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-27 01:42:28,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-27 01:42:28,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2020-10-27 01:42:28,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-27 01:42:28,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-27 01:42:28,962 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 46 [2020-10-27 01:42:28,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:28,963 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-27 01:42:28,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 01:42:28,963 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-27 01:42:28,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-27 01:42:28,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:28,964 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:28,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 01:42:28,965 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:28,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:28,965 INFO L82 PathProgramCache]: Analyzing trace with hash 532908385, now seen corresponding path program 6 times [2020-10-27 01:42:28,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:28,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396214809] [2020-10-27 01:42:28,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:28,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:29,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:29,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 01:42:29,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:29,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-27 01:42:29,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 01:42:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 01:42:29,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:29,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:29,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:29,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:29,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:29,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:29,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:29,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:29,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-10-27 01:42:29,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 01:42:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:29,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:29,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:29,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:29,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:29,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:29,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:29,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:29,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 01:42:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:29,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:29,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:29,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:29,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:29,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:29,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:29,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:29,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 01:42:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:29,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:29,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:29,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:29,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:29,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:29,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:29,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:29,493 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 01:42:29,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396214809] [2020-10-27 01:42:29,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:29,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 01:42:29,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760074086] [2020-10-27 01:42:29,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 01:42:29,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:29,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 01:42:29,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-27 01:42:29,496 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 15 states. [2020-10-27 01:42:30,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:30,012 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-10-27 01:42:30,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 01:42:30,014 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2020-10-27 01:42:30,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:30,016 INFO L225 Difference]: With dead ends: 66 [2020-10-27 01:42:30,016 INFO L226 Difference]: Without dead ends: 62 [2020-10-27 01:42:30,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2020-10-27 01:42:30,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-27 01:42:30,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2020-10-27 01:42:30,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-27 01:42:30,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-27 01:42:30,035 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 48 [2020-10-27 01:42:30,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:30,039 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-27 01:42:30,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 01:42:30,039 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-27 01:42:30,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-27 01:42:30,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:30,043 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:30,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 01:42:30,043 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:30,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:30,044 INFO L82 PathProgramCache]: Analyzing trace with hash 570437051, now seen corresponding path program 7 times [2020-10-27 01:42:30,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:30,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440377800] [2020-10-27 01:42:30,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:30,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:30,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:30,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 01:42:30,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:30,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-27 01:42:30,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:30,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 01:42:30,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:30,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 01:42:30,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:30,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:30,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:30,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:30,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:30,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:30,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:30,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:30,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:30,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 01:42:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:30,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:30,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:30,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:30,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:30,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:30,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:30,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:30,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:30,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:30,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:30,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 01:42:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:30,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:30,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:30,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:30,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:30,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:30,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:30,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:30,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:30,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:30,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:30,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 01:42:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:30,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:30,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:30,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:30,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:30,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:42:30,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:30,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:30,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:30,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:30,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:30,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:42:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:30,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:30,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:30,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:30,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:30,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:42:30,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:30,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:30,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:30,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:30,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:30,576 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 40 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-27 01:42:30,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440377800] [2020-10-27 01:42:30,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:30,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 01:42:30,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680590405] [2020-10-27 01:42:30,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 01:42:30,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:30,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 01:42:30,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-27 01:42:30,578 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 14 states. [2020-10-27 01:42:30,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:30,835 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2020-10-27 01:42:30,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 01:42:30,835 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2020-10-27 01:42:30,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:30,837 INFO L225 Difference]: With dead ends: 92 [2020-10-27 01:42:30,837 INFO L226 Difference]: Without dead ends: 62 [2020-10-27 01:42:30,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-10-27 01:42:30,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-27 01:42:30,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2020-10-27 01:42:30,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-27 01:42:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-10-27 01:42:30,865 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 56 [2020-10-27 01:42:30,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:30,866 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-10-27 01:42:30,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 01:42:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-10-27 01:42:30,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-27 01:42:30,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:30,867 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:30,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 01:42:30,867 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:30,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:30,868 INFO L82 PathProgramCache]: Analyzing trace with hash -893069991, now seen corresponding path program 8 times [2020-10-27 01:42:30,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:30,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509187102] [2020-10-27 01:42:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:30,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:31,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:31,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 01:42:31,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:31,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-10-27 01:42:31,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:31,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 01:42:31,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:31,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 01:42:31,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:31,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:31,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:31,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:31,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:31,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:31,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:31,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:31,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:31,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:42:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:31,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:31,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:31,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:31,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:31,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:31,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:31,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:31,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:31,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:31,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:31,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:42:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:31,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:31,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:31,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:31,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:31,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:31,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:31,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:31,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:31,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:31,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:42:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:31,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:31,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:31,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:31,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:31,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:42:31,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:31,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:31,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:31,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:31,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:31,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:42:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:31,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:31,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:31,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:31,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:31,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:31,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:31,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:31,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:31,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:31,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:31,559 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 8 proven. 57 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-27 01:42:31,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509187102] [2020-10-27 01:42:31,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:31,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 01:42:31,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292654820] [2020-10-27 01:42:31,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 01:42:31,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:31,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 01:42:31,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-10-27 01:42:31,562 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 17 states. [2020-10-27 01:42:32,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:32,286 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-27 01:42:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 01:42:32,286 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-10-27 01:42:32,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:32,288 INFO L225 Difference]: With dead ends: 76 [2020-10-27 01:42:32,288 INFO L226 Difference]: Without dead ends: 72 [2020-10-27 01:42:32,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2020-10-27 01:42:32,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-27 01:42:32,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2020-10-27 01:42:32,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-27 01:42:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-10-27 01:42:32,315 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 58 [2020-10-27 01:42:32,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:32,318 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-10-27 01:42:32,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 01:42:32,319 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-10-27 01:42:32,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 01:42:32,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:32,320 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:32,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 01:42:32,320 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:32,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:32,324 INFO L82 PathProgramCache]: Analyzing trace with hash -355335757, now seen corresponding path program 9 times [2020-10-27 01:42:32,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:32,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739992894] [2020-10-27 01:42:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:32,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:32,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:32,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-27 01:42:32,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:32,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-27 01:42:32,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:32,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 01:42:32,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:32,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 01:42:32,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:32,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:32,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:32,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:32,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:32,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:32,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:32,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:32,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:32,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:32,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:32,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:32,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 01:42:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:32,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:32,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:32,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:32,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:32,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:32,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:42:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:32,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:32,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:32,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:32,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:32,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:32,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:42:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:32,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:32,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:32,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:32,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:32,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:32,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:32,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:42:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:32,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:32,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:32,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:32,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:32,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:32,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:32,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:32,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:42:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:32,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:32,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:32,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:32,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:32,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:32,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:32,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:32,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:32,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:32,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 60 proven. 25 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 01:42:33,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739992894] [2020-10-27 01:42:33,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:33,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 01:42:33,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361782316] [2020-10-27 01:42:33,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 01:42:33,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:33,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 01:42:33,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-10-27 01:42:33,005 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 16 states. [2020-10-27 01:42:33,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:33,320 INFO L93 Difference]: Finished difference Result 106 states and 113 transitions. [2020-10-27 01:42:33,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 01:42:33,320 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 66 [2020-10-27 01:42:33,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:33,321 INFO L225 Difference]: With dead ends: 106 [2020-10-27 01:42:33,321 INFO L226 Difference]: Without dead ends: 72 [2020-10-27 01:42:33,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2020-10-27 01:42:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-27 01:42:33,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2020-10-27 01:42:33,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-27 01:42:33,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-10-27 01:42:33,334 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 66 [2020-10-27 01:42:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:33,334 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-10-27 01:42:33,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 01:42:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-10-27 01:42:33,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 01:42:33,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:33,337 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:33,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 01:42:33,337 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:33,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:33,338 INFO L82 PathProgramCache]: Analyzing trace with hash -2074592303, now seen corresponding path program 10 times [2020-10-27 01:42:33,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:33,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398597012] [2020-10-27 01:42:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:33,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:33,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:33,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 01:42:33,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:33,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-10-27 01:42:33,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 01:42:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 01:42:33,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:34,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:34,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:34,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:34,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:34,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:34,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:34,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:34,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:34,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 01:42:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:34,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:34,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:34,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:34,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:34,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:34,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:34,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:34,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:34,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:34,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:34,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 01:42:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:34,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:34,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:34,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:34,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:34,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:34,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:34,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:34,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:34,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:34,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:42:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:34,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:34,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:34,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:34,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:34,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:34,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:34,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:34,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:34,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:34,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:34,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:42:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:34,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:34,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:34,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:34,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:34,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:34,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:34,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:42:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:34,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:34,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:34,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:34,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:34,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:42:34,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:34,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:34,237 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 10 proven. 86 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 01:42:34,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398597012] [2020-10-27 01:42:34,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:34,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 01:42:34,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167439262] [2020-10-27 01:42:34,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 01:42:34,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:34,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 01:42:34,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-27 01:42:34,242 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 19 states. [2020-10-27 01:42:34,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:34,987 INFO L93 Difference]: Finished difference Result 86 states and 87 transitions. [2020-10-27 01:42:34,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 01:42:34,988 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 68 [2020-10-27 01:42:34,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:34,989 INFO L225 Difference]: With dead ends: 86 [2020-10-27 01:42:34,989 INFO L226 Difference]: Without dead ends: 82 [2020-10-27 01:42:34,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=786, Unknown=0, NotChecked=0, Total=870 [2020-10-27 01:42:34,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-27 01:42:34,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2020-10-27 01:42:35,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-27 01:42:35,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2020-10-27 01:42:35,001 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 68 [2020-10-27 01:42:35,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:35,001 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2020-10-27 01:42:35,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 01:42:35,001 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2020-10-27 01:42:35,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-27 01:42:35,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:35,003 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:35,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 01:42:35,003 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:35,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:35,003 INFO L82 PathProgramCache]: Analyzing trace with hash 632516651, now seen corresponding path program 11 times [2020-10-27 01:42:35,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:35,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829998880] [2020-10-27 01:42:35,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:35,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:35,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:35,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 01:42:35,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:35,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-27 01:42:35,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:35,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 01:42:35,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:35,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 01:42:35,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:35,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:35,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:35,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:35,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:35,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:35,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:42:35,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:35,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:35,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 01:42:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:35,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:35,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:35,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:35,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:35,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:42:35,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:35,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:35,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:35,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:35,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:35,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 01:42:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:35,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:35,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:35,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:35,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:35,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:35,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:35,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:35,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:42:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:35,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:35,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:35,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:35,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:35,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:35,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:35,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:35,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:35,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:35,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:35,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:42:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:35,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:35,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:35,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:35,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:35,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:35,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:35,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:35,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:35,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:35,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:35,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:42:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:35,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:35,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:35,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:35,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:35,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 01:42:35,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:35,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:35,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:42:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:35,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:35,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:35,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:35,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:35,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:35,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:35,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:42:35,830 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 84 proven. 36 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-27 01:42:35,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829998880] [2020-10-27 01:42:35,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:35,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 01:42:35,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378483760] [2020-10-27 01:42:35,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 01:42:35,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:35,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 01:42:35,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2020-10-27 01:42:35,835 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand 18 states. [2020-10-27 01:42:36,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:36,368 INFO L93 Difference]: Finished difference Result 120 states and 128 transitions. [2020-10-27 01:42:36,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 01:42:36,368 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 76 [2020-10-27 01:42:36,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:36,370 INFO L225 Difference]: With dead ends: 120 [2020-10-27 01:42:36,370 INFO L226 Difference]: Without dead ends: 82 [2020-10-27 01:42:36,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-10-27 01:42:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-27 01:42:36,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2020-10-27 01:42:36,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-27 01:42:36,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 82 transitions. [2020-10-27 01:42:36,397 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 82 transitions. Word has length 76 [2020-10-27 01:42:36,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:36,399 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 82 transitions. [2020-10-27 01:42:36,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 01:42:36,399 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 82 transitions. [2020-10-27 01:42:36,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-27 01:42:36,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:36,411 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:36,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 01:42:36,415 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:36,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:36,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1392909513, now seen corresponding path program 12 times [2020-10-27 01:42:36,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:36,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951264946] [2020-10-27 01:42:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:36,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:37,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:37,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 01:42:37,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:37,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 590 [2020-10-27 01:42:37,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:37,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 01:42:37,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:37,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-27 01:42:37,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:37,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:37,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:37,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:37,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:37,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:37,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:37,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:37,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 01:42:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:37,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:37,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:37,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:37,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:37,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:37,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:37,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:37,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:37,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:37,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:37,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 01:42:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:37,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:37,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:37,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:37,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:37,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:37,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:37,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:37,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:42:37,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:42:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:37,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:37,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:37,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:37,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:37,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:37,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:37,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:37,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:37,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:37,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:37,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:42:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:37,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:37,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:37,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:37,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:37,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:37,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:37,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:37,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:37,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:37,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:37,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:42:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:37,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:37,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:37,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:37,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:37,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:37,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:37,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:37,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:37,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:37,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:37,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:42:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:37,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:37,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:37,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:37,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:37,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:37,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:37,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:37,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:37,471 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 12 proven. 121 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-27 01:42:37,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951264946] [2020-10-27 01:42:37,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:37,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-27 01:42:37,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658382773] [2020-10-27 01:42:37,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 01:42:37,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:37,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 01:42:37,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-27 01:42:37,475 INFO L87 Difference]: Start difference. First operand 81 states and 82 transitions. Second operand 21 states. [2020-10-27 01:42:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:38,473 INFO L93 Difference]: Finished difference Result 96 states and 97 transitions. [2020-10-27 01:42:38,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 01:42:38,473 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 78 [2020-10-27 01:42:38,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:38,475 INFO L225 Difference]: With dead ends: 96 [2020-10-27 01:42:38,475 INFO L226 Difference]: Without dead ends: 92 [2020-10-27 01:42:38,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2020-10-27 01:42:38,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-27 01:42:38,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 89. [2020-10-27 01:42:38,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-27 01:42:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 90 transitions. [2020-10-27 01:42:38,500 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 90 transitions. Word has length 78 [2020-10-27 01:42:38,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:38,500 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 90 transitions. [2020-10-27 01:42:38,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 01:42:38,501 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 90 transitions. [2020-10-27 01:42:38,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-27 01:42:38,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:38,505 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:38,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 01:42:38,505 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:38,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:38,505 INFO L82 PathProgramCache]: Analyzing trace with hash 2060245283, now seen corresponding path program 13 times [2020-10-27 01:42:38,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:38,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322465692] [2020-10-27 01:42:38,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:38,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:39,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:39,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 01:42:39,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:39,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 542 [2020-10-27 01:42:39,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:39,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 01:42:39,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:39,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 01:42:39,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:39,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:39,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:39,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:39,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:39,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:39,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:39,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:39,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:39,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:39,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:39,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:39,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 01:42:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:39,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:39,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:39,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:39,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:39,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:39,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:39,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:39,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:39,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:39,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:39,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 01:42:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:39,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:39,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:39,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:39,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:39,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:39,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:39,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:39,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:39,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:42:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:39,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:39,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:39,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:39,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:39,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:39,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:39,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:39,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:39,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:39,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:39,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:42:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:39,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:39,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:39,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:39,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:39,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 01:42:39,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:39,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:39,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:42:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:39,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:39,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:39,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:39,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:39,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:39,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:39,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:39,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:42:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:39,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:39,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:39,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:39,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:39,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:39,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:39,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:39,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:39,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:42:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:39,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:39,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:39,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:39,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:39,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:39,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:39,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:39,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:39,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:39,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 112 proven. 49 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-27 01:42:39,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322465692] [2020-10-27 01:42:39,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:39,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 01:42:39,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153941192] [2020-10-27 01:42:39,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 01:42:39,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:39,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 01:42:39,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2020-10-27 01:42:39,390 INFO L87 Difference]: Start difference. First operand 89 states and 90 transitions. Second operand 20 states. [2020-10-27 01:42:39,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:39,796 INFO L93 Difference]: Finished difference Result 134 states and 143 transitions. [2020-10-27 01:42:39,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 01:42:39,798 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 86 [2020-10-27 01:42:39,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:39,800 INFO L225 Difference]: With dead ends: 134 [2020-10-27 01:42:39,802 INFO L226 Difference]: Without dead ends: 92 [2020-10-27 01:42:39,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2020-10-27 01:42:39,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-27 01:42:39,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-10-27 01:42:39,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-27 01:42:39,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 92 transitions. [2020-10-27 01:42:39,824 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 92 transitions. Word has length 86 [2020-10-27 01:42:39,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:39,825 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 92 transitions. [2020-10-27 01:42:39,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 01:42:39,825 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 92 transitions. [2020-10-27 01:42:39,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 01:42:39,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:39,826 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:39,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 01:42:39,826 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:39,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:39,827 INFO L82 PathProgramCache]: Analyzing trace with hash 920574017, now seen corresponding path program 14 times [2020-10-27 01:42:39,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:39,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759451374] [2020-10-27 01:42:39,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:39,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:40,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:40,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 01:42:40,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:40,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 769 [2020-10-27 01:42:40,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 01:42:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 01:42:40,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:40,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:41,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:41,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:41,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:41,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:41,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:41,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:41,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:41,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:41,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:41,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:41,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 01:42:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:41,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:41,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:41,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:41,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:41,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:41,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:41,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:41,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:41,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 01:42:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:41,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:41,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:41,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:41,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:41,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:41,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:41,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:41,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:42:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:41,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:41,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:41,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:41,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:41,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:41,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:41,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:41,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:42:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:41,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:41,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:41,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:41,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:41,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:41,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:41,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:41,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:41,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:41,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:41,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:42:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:41,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:41,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:41,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:41,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:41,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:41,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:41,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:41,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:41,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:42:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:41,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:41,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:41,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:41,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:41,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:41,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:41,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:41,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:41,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:41,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:41,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:42:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:41,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:41,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:41,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:41,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:41,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:41,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:41,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:41,085 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 14 proven. 162 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-27 01:42:41,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759451374] [2020-10-27 01:42:41,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:41,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-27 01:42:41,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380522645] [2020-10-27 01:42:41,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 01:42:41,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:41,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 01:42:41,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=462, Unknown=0, NotChecked=0, Total=506 [2020-10-27 01:42:41,088 INFO L87 Difference]: Start difference. First operand 91 states and 92 transitions. Second operand 23 states. [2020-10-27 01:42:42,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:42,153 INFO L93 Difference]: Finished difference Result 106 states and 107 transitions. [2020-10-27 01:42:42,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 01:42:42,154 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 88 [2020-10-27 01:42:42,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:42,155 INFO L225 Difference]: With dead ends: 106 [2020-10-27 01:42:42,155 INFO L226 Difference]: Without dead ends: 102 [2020-10-27 01:42:42,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 01:42:42,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-27 01:42:42,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 99. [2020-10-27 01:42:42,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-27 01:42:42,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2020-10-27 01:42:42,166 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 100 transitions. Word has length 88 [2020-10-27 01:42:42,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:42,166 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 100 transitions. [2020-10-27 01:42:42,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 01:42:42,167 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 100 transitions. [2020-10-27 01:42:42,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-27 01:42:42,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:42,168 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:42,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 01:42:42,168 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:42,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:42,169 INFO L82 PathProgramCache]: Analyzing trace with hash -2083611493, now seen corresponding path program 15 times [2020-10-27 01:42:42,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:42,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569566001] [2020-10-27 01:42:42,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:42,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:42,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:42,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-27 01:42:42,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:42,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-10-27 01:42:42,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 01:42:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:42,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-27 01:42:42,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:43,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:43,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:43,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:43,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:43,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:43,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:43,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:43,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:43,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:43,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:43,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:43,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 01:42:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:43,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:43,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:43,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:43,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:43,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:43,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:43,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:43,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:43,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:43,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:43,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 01:42:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:43,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:43,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:43,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:43,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:43,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:43,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:43,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:42:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:43,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:43,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:43,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:43,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:43,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:43,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:43,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:43,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:43,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:42:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:43,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:43,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:43,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:43,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:43,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:43,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:43,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:43,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:42:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:43,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:43,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:43,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:43,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:43,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:43,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:43,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:43,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:42:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:43,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:43,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:43,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:43,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:43,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:43,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:43,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:43,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:43,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:43,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:43,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:42:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:43,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:43,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:43,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:43,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:43,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:43,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:43,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:43,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:43,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:43,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:43,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:42:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:43,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:43,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:43,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:43,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:43,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:43,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:43,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 115 proven. 93 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-27 01:42:43,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569566001] [2020-10-27 01:42:43,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:43,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-27 01:42:43,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896110679] [2020-10-27 01:42:43,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 01:42:43,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:43,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 01:42:43,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2020-10-27 01:42:43,146 INFO L87 Difference]: Start difference. First operand 99 states and 100 transitions. Second operand 22 states. [2020-10-27 01:42:43,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:43,652 INFO L93 Difference]: Finished difference Result 148 states and 158 transitions. [2020-10-27 01:42:43,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 01:42:43,653 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 96 [2020-10-27 01:42:43,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:43,654 INFO L225 Difference]: With dead ends: 148 [2020-10-27 01:42:43,654 INFO L226 Difference]: Without dead ends: 102 [2020-10-27 01:42:43,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=220, Invalid=772, Unknown=0, NotChecked=0, Total=992 [2020-10-27 01:42:43,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-27 01:42:43,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2020-10-27 01:42:43,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-27 01:42:43,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 102 transitions. [2020-10-27 01:42:43,667 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 102 transitions. Word has length 96 [2020-10-27 01:42:43,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:43,667 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 102 transitions. [2020-10-27 01:42:43,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 01:42:43,667 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 102 transitions. [2020-10-27 01:42:43,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 01:42:43,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:43,669 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:43,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 01:42:43,669 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:43,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:43,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1601883705, now seen corresponding path program 16 times [2020-10-27 01:42:43,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:43,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521475224] [2020-10-27 01:42:43,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:43,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:44,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:44,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 01:42:44,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:44,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 774 [2020-10-27 01:42:44,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:44,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 01:42:44,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:44,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 01:42:44,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:44,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:44,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:44,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:44,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:44,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:44,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:44,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:44,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:44,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:44,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:44,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:44,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:42:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:44,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:44,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:44,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:44,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:44,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:44,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:44,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:44,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:44,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:44,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:44,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:42:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:44,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:44,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:44,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:44,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:44,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:44,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:44,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:44,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:44,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:42:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:44,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:44,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:44,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:44,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:44,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:44,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:44,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:44,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:44,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:44,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:44,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:42:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:44,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:44,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:44,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:44,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:44,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:44,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:44,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:44,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:44,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:44,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:44,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:42:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:44,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:45,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:45,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:45,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:45,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:42:45,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:45,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:45,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:42:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:45,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:45,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:45,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:45,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:45,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:42:45,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:45,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:45,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:45,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:45,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:42:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:45,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:45,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:45,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:45,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:45,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:45,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:45,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:45,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:45,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:45,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:45,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:42:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:45,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:45,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:45,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:45,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:45,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:45,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:45,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:45,082 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 16 proven. 209 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-27 01:42:45,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521475224] [2020-10-27 01:42:45,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:45,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 01:42:45,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134453008] [2020-10-27 01:42:45,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 01:42:45,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:45,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 01:42:45,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-27 01:42:45,086 INFO L87 Difference]: Start difference. First operand 101 states and 102 transitions. Second operand 25 states. [2020-10-27 01:42:46,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:46,347 INFO L93 Difference]: Finished difference Result 116 states and 117 transitions. [2020-10-27 01:42:46,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 01:42:46,347 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 98 [2020-10-27 01:42:46,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:46,348 INFO L225 Difference]: With dead ends: 116 [2020-10-27 01:42:46,349 INFO L226 Difference]: Without dead ends: 112 [2020-10-27 01:42:46,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=1374, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 01:42:46,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-27 01:42:46,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2020-10-27 01:42:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-27 01:42:46,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2020-10-27 01:42:46,361 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 98 [2020-10-27 01:42:46,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:46,362 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2020-10-27 01:42:46,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 01:42:46,362 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2020-10-27 01:42:46,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-27 01:42:46,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:46,364 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:46,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 01:42:46,364 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:46,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:46,365 INFO L82 PathProgramCache]: Analyzing trace with hash 32578195, now seen corresponding path program 17 times [2020-10-27 01:42:46,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:46,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730886717] [2020-10-27 01:42:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:46,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:47,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:47,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-27 01:42:47,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:47,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-10-27 01:42:47,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:47,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 01:42:47,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:47,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-27 01:42:47,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:47,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:47,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:47,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:47,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:47,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:47,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:47,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:47,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:47,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:47,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:47,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:47,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 01:42:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:47,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:47,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:47,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:47,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:47,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:47,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:47,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:47,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:47,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:47,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:47,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:42:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:47,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:47,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:47,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:47,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:47,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:47,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:47,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:47,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:47,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:47,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:47,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:42:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:47,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:47,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:47,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:47,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:47,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:47,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:47,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:47,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:47,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:47,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:47,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:42:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:47,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:47,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:47,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:47,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:47,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:47,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:47,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:47,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:42:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:47,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:47,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:47,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:47,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:47,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:42:47,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:47,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:47,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:47,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:47,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:47,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:42:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:47,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:47,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:47,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:47,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:47,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:47,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:47,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:47,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:47,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:47,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:47,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:42:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:47,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:47,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:47,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:47,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:47,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:47,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:47,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:47,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:47,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:42:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:47,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:47,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:47,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:47,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:47,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:47,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:47,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:47,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:47,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:47,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:47,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:42:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:47,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:47,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:47,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:47,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:47,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:47,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:47,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:47,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:47,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:47,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 180 proven. 81 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-27 01:42:47,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730886717] [2020-10-27 01:42:47,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:47,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-27 01:42:47,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226569773] [2020-10-27 01:42:47,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-27 01:42:47,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:47,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-27 01:42:47,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2020-10-27 01:42:47,457 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand 24 states. [2020-10-27 01:42:48,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:48,057 INFO L93 Difference]: Finished difference Result 162 states and 173 transitions. [2020-10-27 01:42:48,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 01:42:48,058 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 106 [2020-10-27 01:42:48,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:48,059 INFO L225 Difference]: With dead ends: 162 [2020-10-27 01:42:48,059 INFO L226 Difference]: Without dead ends: 112 [2020-10-27 01:42:48,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=289, Invalid=901, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 01:42:48,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-27 01:42:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2020-10-27 01:42:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-27 01:42:48,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 112 transitions. [2020-10-27 01:42:48,072 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 112 transitions. Word has length 106 [2020-10-27 01:42:48,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:48,072 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 112 transitions. [2020-10-27 01:42:48,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-27 01:42:48,073 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 112 transitions. [2020-10-27 01:42:48,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-27 01:42:48,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:48,074 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:48,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 01:42:48,074 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:48,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:48,075 INFO L82 PathProgramCache]: Analyzing trace with hash -503685455, now seen corresponding path program 18 times [2020-10-27 01:42:48,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:48,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667556722] [2020-10-27 01:42:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:48,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:49,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:49,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 01:42:49,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:49,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 970 [2020-10-27 01:42:49,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 01:42:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 01:42:49,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:49,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:49,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:49,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:49,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:49,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:49,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:49,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 01:42:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:49,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:49,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:49,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:49,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:49,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:49,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:49,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:49,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:49,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:49,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:49,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:42:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:49,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:49,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:49,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:49,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:49,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:49,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:49,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:49,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:49,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:49,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:42:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:49,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:49,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:49,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:49,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:49,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:49,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:49,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:49,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:49,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:49,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:49,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:42:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:49,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:49,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:49,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:49,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:49,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:49,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:49,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:42:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:49,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:49,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:49,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:49,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:49,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:42:49,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:49,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:49,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:49,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:49,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:42:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:49,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:49,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:49,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:49,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:49,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:49,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:49,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:49,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:49,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:42:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:49,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:49,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:49,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:49,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:49,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:49,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:49,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:49,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:42:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:49,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:49,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:49,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:49,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:49,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:49,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:49,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:49,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:49,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:49,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:49,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:42:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:49,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:49,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:49,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:49,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:49,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:49,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:49,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:49,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:49,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:49,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 18 proven. 262 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-27 01:42:49,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667556722] [2020-10-27 01:42:49,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:49,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-27 01:42:49,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127991458] [2020-10-27 01:42:49,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-27 01:42:49,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:49,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-27 01:42:49,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-27 01:42:49,754 INFO L87 Difference]: Start difference. First operand 111 states and 112 transitions. Second operand 27 states. [2020-10-27 01:42:51,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:51,338 INFO L93 Difference]: Finished difference Result 126 states and 127 transitions. [2020-10-27 01:42:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 01:42:51,339 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 108 [2020-10-27 01:42:51,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:51,341 INFO L225 Difference]: With dead ends: 126 [2020-10-27 01:42:51,341 INFO L226 Difference]: Without dead ends: 122 [2020-10-27 01:42:51,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=116, Invalid=1606, Unknown=0, NotChecked=0, Total=1722 [2020-10-27 01:42:51,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-27 01:42:51,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 119. [2020-10-27 01:42:51,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-27 01:42:51,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 120 transitions. [2020-10-27 01:42:51,354 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 120 transitions. Word has length 108 [2020-10-27 01:42:51,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:51,354 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 120 transitions. [2020-10-27 01:42:51,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-27 01:42:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 120 transitions. [2020-10-27 01:42:51,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-27 01:42:51,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:51,356 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:51,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 01:42:51,356 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:51,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:51,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1812679925, now seen corresponding path program 19 times [2020-10-27 01:42:51,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:51,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836353979] [2020-10-27 01:42:51,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:51,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 01:42:52,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 793 [2020-10-27 01:42:52,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-27 01:42:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-27 01:42:52,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:52,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:52,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:52,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:52,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:52,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:52,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 01:42:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:52,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:52,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:52,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:52,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:42:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:52,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:52,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:52,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:52,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:52,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:52,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:42:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:52,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:52,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:52,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:42:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:52,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:52,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:52,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:52,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:42:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:52,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:52,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:52,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:52,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:42:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:52,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:52,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:52,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:52,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:52,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:52,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:42:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:52,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:52,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:52,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:42:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:52,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:52,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:52,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:52,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:52,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:42:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:52,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:52,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:52,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:52,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:52,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:52,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:42:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:52,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:52,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:52,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:52,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:52,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:52,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:52,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:52,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 220 proven. 100 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-27 01:42:52,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836353979] [2020-10-27 01:42:52,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:52,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-27 01:42:52,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327790184] [2020-10-27 01:42:52,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-27 01:42:52,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:52,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-27 01:42:52,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2020-10-27 01:42:52,611 INFO L87 Difference]: Start difference. First operand 119 states and 120 transitions. Second operand 26 states. [2020-10-27 01:42:53,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:53,110 INFO L93 Difference]: Finished difference Result 176 states and 188 transitions. [2020-10-27 01:42:53,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 01:42:53,111 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 116 [2020-10-27 01:42:53,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:53,112 INFO L225 Difference]: With dead ends: 176 [2020-10-27 01:42:53,112 INFO L226 Difference]: Without dead ends: 122 [2020-10-27 01:42:53,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 01:42:53,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-27 01:42:53,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2020-10-27 01:42:53,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-27 01:42:53,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 122 transitions. [2020-10-27 01:42:53,127 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 122 transitions. Word has length 116 [2020-10-27 01:42:53,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:53,127 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 122 transitions. [2020-10-27 01:42:53,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-27 01:42:53,128 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 122 transitions. [2020-10-27 01:42:53,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-27 01:42:53,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:53,129 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:53,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 01:42:53,130 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:53,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:53,130 INFO L82 PathProgramCache]: Analyzing trace with hash -284825175, now seen corresponding path program 20 times [2020-10-27 01:42:53,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:53,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875789407] [2020-10-27 01:42:53,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:53,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-27 01:42:54,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1058 [2020-10-27 01:42:54,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 01:42:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-27 01:42:54,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:54,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:54,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:54,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:54,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 01:42:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:54,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:54,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:54,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:54,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:42:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:54,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:54,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:54,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:54,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:42:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:54,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:54,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:54,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:54,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:54,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:54,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:42:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:54,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:54,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:54,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:54,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:42:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:54,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:54,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:54,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:54,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:42:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:54,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:54,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:54,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:54,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:42:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:54,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:54,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:54,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:54,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:42:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:54,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:54,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:54,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:54,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:54,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:54,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:42:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:54,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:54,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:54,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:54,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:42:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:54,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:54,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:54,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:54,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:54,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:42:54,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:54,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:54,954 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 20 proven. 321 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-27 01:42:54,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875789407] [2020-10-27 01:42:54,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:54,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-27 01:42:54,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313007331] [2020-10-27 01:42:54,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-27 01:42:54,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:54,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-27 01:42:54,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-10-27 01:42:54,964 INFO L87 Difference]: Start difference. First operand 121 states and 122 transitions. Second operand 29 states. [2020-10-27 01:42:56,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:56,810 INFO L93 Difference]: Finished difference Result 136 states and 137 transitions. [2020-10-27 01:42:56,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-27 01:42:56,811 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 118 [2020-10-27 01:42:56,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:56,812 INFO L225 Difference]: With dead ends: 136 [2020-10-27 01:42:56,812 INFO L226 Difference]: Without dead ends: 132 [2020-10-27 01:42:56,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=1773, Unknown=0, NotChecked=0, Total=1892 [2020-10-27 01:42:56,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-27 01:42:56,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2020-10-27 01:42:56,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-27 01:42:56,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 130 transitions. [2020-10-27 01:42:56,826 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 130 transitions. Word has length 118 [2020-10-27 01:42:56,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:56,826 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 130 transitions. [2020-10-27 01:42:56,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-27 01:42:56,827 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 130 transitions. [2020-10-27 01:42:56,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-27 01:42:56,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:56,828 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:56,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 01:42:56,828 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:56,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:56,829 INFO L82 PathProgramCache]: Analyzing trace with hash -333330941, now seen corresponding path program 21 times [2020-10-27 01:42:56,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:56,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891556554] [2020-10-27 01:42:56,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:56,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:57,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:57,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-27 01:42:57,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:57,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 893 [2020-10-27 01:42:57,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 01:42:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:42:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-27 01:42:57,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:42:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:42:58,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:42:58,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:42:58,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 01:42:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:58,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:58,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:58,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:42:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:58,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:58,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:42:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:58,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:58,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:58,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:42:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:58,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:58,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:42:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:58,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:58,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:58,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:42:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:58,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:58,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:58,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:42:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:58,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:58,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:58,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:42:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:58,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:58,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:58,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:42:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:58,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:58,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:42:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:58,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:58,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:42:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:58,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:42:58,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:42:58,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:42:58,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:42:58,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:42:58,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:42:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:42:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:42:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:42:58,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:42:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 264 proven. 121 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-27 01:42:58,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891556554] [2020-10-27 01:42:58,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:42:58,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 01:42:58,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53776312] [2020-10-27 01:42:58,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 01:42:58,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:42:58,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 01:42:58,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2020-10-27 01:42:58,184 INFO L87 Difference]: Start difference. First operand 129 states and 130 transitions. Second operand 28 states. [2020-10-27 01:42:58,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:42:58,992 INFO L93 Difference]: Finished difference Result 190 states and 203 transitions. [2020-10-27 01:42:58,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-27 01:42:58,993 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 126 [2020-10-27 01:42:58,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:42:58,995 INFO L225 Difference]: With dead ends: 190 [2020-10-27 01:42:58,995 INFO L226 Difference]: Without dead ends: 132 [2020-10-27 01:42:58,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=393, Invalid=1247, Unknown=0, NotChecked=0, Total=1640 [2020-10-27 01:42:58,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-27 01:42:59,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2020-10-27 01:42:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-27 01:42:59,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 132 transitions. [2020-10-27 01:42:59,016 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 132 transitions. Word has length 126 [2020-10-27 01:42:59,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:42:59,019 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 132 transitions. [2020-10-27 01:42:59,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 01:42:59,019 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 132 transitions. [2020-10-27 01:42:59,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-27 01:42:59,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:42:59,022 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:42:59,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-27 01:42:59,025 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:42:59,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:42:59,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1999778015, now seen corresponding path program 22 times [2020-10-27 01:42:59,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:42:59,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347976185] [2020-10-27 01:42:59,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:42:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:42:59,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:00,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:00,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-27 01:43:00,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:00,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1137 [2020-10-27 01:43:00,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:00,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 01:43:00,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:00,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 01:43:00,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:00,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:00,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:00,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:00,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:00,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:00,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:00,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:00,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:00,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:00,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:00,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:00,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 01:43:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:00,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:00,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:00,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:00,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:00,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:00,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:00,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:00,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:00,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:00,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:00,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:43:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:00,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:00,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:00,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:00,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:00,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:00,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:00,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:00,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:00,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:00,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:00,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:43:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:00,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:00,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:00,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:00,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:00,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:43:00,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:00,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:43:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:00,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:00,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:00,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:00,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:00,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:00,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:00,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:00,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:00,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:00,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:00,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:43:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:00,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:00,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:00,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:00,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:01,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:01,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:01,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:43:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:01,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:01,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:01,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:01,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:01,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:01,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:01,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:01,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:01,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:01,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:01,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:43:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:01,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:01,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:01,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:01,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:01,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:01,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:01,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:01,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:43:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:01,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:01,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:01,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:01,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:01,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:01,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:01,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:01,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:43:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:01,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:01,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:01,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:01,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:01,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:01,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:01,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:01,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:01,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:01,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:01,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:43:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:01,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:01,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:01,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:01,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:01,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:43:01,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:01,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:01,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:43:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:01,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:01,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:01,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:01,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:01,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:01,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:01,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:01,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:01,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:01,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:01,096 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 22 proven. 386 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-27 01:43:01,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347976185] [2020-10-27 01:43:01,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:01,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-27 01:43:01,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513912968] [2020-10-27 01:43:01,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-27 01:43:01,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:01,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-27 01:43:01,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-10-27 01:43:01,099 INFO L87 Difference]: Start difference. First operand 131 states and 132 transitions. Second operand 31 states. [2020-10-27 01:43:03,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:03,203 INFO L93 Difference]: Finished difference Result 146 states and 147 transitions. [2020-10-27 01:43:03,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-27 01:43:03,204 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 128 [2020-10-27 01:43:03,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:03,205 INFO L225 Difference]: With dead ends: 146 [2020-10-27 01:43:03,206 INFO L226 Difference]: Without dead ends: 142 [2020-10-27 01:43:03,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=132, Invalid=2124, Unknown=0, NotChecked=0, Total=2256 [2020-10-27 01:43:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-27 01:43:03,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 139. [2020-10-27 01:43:03,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-27 01:43:03,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 140 transitions. [2020-10-27 01:43:03,220 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 140 transitions. Word has length 128 [2020-10-27 01:43:03,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:03,220 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 140 transitions. [2020-10-27 01:43:03,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-27 01:43:03,221 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 140 transitions. [2020-10-27 01:43:03,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-27 01:43:03,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:03,223 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:03,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-27 01:43:03,223 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:03,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:03,223 INFO L82 PathProgramCache]: Analyzing trace with hash -2042055813, now seen corresponding path program 23 times [2020-10-27 01:43:03,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:03,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072245303] [2020-10-27 01:43:03,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:03,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-27 01:43:04,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1133 [2020-10-27 01:43:04,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-27 01:43:04,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:04,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-27 01:43:04,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:04,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:04,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:04,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 01:43:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:43:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:43:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:43:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:43:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:43:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:43:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:43:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:43:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:43:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:43:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:43:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:04,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:04,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:04,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:04,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:04,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:04,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:04,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 312 proven. 144 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-27 01:43:04,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072245303] [2020-10-27 01:43:04,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:04,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-27 01:43:04,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891023408] [2020-10-27 01:43:04,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 01:43:04,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:04,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 01:43:04,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2020-10-27 01:43:04,860 INFO L87 Difference]: Start difference. First operand 139 states and 140 transitions. Second operand 30 states. [2020-10-27 01:43:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:05,767 INFO L93 Difference]: Finished difference Result 204 states and 218 transitions. [2020-10-27 01:43:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-27 01:43:05,767 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 136 [2020-10-27 01:43:05,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:05,769 INFO L225 Difference]: With dead ends: 204 [2020-10-27 01:43:05,769 INFO L226 Difference]: Without dead ends: 142 [2020-10-27 01:43:05,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=451, Invalid=1441, Unknown=0, NotChecked=0, Total=1892 [2020-10-27 01:43:05,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-27 01:43:05,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2020-10-27 01:43:05,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-10-27 01:43:05,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 142 transitions. [2020-10-27 01:43:05,785 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 142 transitions. Word has length 136 [2020-10-27 01:43:05,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:05,785 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 142 transitions. [2020-10-27 01:43:05,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 01:43:05,785 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 142 transitions. [2020-10-27 01:43:05,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-27 01:43:05,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:05,787 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:05,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-27 01:43:05,787 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:05,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:05,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1190498535, now seen corresponding path program 24 times [2020-10-27 01:43:05,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:05,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177730198] [2020-10-27 01:43:05,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:05,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:07,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:07,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 01:43:07,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:07,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1398 [2020-10-27 01:43:07,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:07,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 01:43:07,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:07,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-27 01:43:07,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:07,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:07,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:07,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:07,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:07,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:07,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:07,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:07,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:07,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:43:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:07,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:07,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:07,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:07,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:07,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:07,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:07,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:07,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:43:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:07,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:08,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:08,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:08,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:08,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:08,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:08,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:08,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:08,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:43:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:08,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:08,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:08,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:08,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:08,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:08,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:08,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:08,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:43:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:08,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:08,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:08,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:08,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:08,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:08,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:08,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:08,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:08,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:43:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:08,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:08,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:08,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:08,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:08,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:08,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:08,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:08,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:43:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:08,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:08,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:08,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:08,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:08,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:08,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:08,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:08,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:08,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:08,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:08,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:43:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:08,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:08,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:08,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:08,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:08,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:08,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:08,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:08,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:08,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:08,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:43:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:08,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:08,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:08,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:08,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:08,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:08,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:08,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:08,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:08,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:08,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:08,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:43:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:08,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:08,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:08,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:08,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:08,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:08,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:08,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:08,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:08,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:08,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:08,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:43:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:08,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:08,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:08,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:08,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:08,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:08,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:08,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:08,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:08,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:08,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:08,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:43:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:08,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:08,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:08,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:08,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:08,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:08,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:08,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:08,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:43:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:08,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:08,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:08,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:08,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:08,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:08,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:08,116 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 24 proven. 457 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-27 01:43:08,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177730198] [2020-10-27 01:43:08,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:08,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-27 01:43:08,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141478675] [2020-10-27 01:43:08,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-27 01:43:08,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:08,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-27 01:43:08,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 01:43:08,119 INFO L87 Difference]: Start difference. First operand 141 states and 142 transitions. Second operand 33 states. [2020-10-27 01:43:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:10,534 INFO L93 Difference]: Finished difference Result 156 states and 157 transitions. [2020-10-27 01:43:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-27 01:43:10,535 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 138 [2020-10-27 01:43:10,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:10,538 INFO L225 Difference]: With dead ends: 156 [2020-10-27 01:43:10,538 INFO L226 Difference]: Without dead ends: 152 [2020-10-27 01:43:10,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=140, Invalid=2410, Unknown=0, NotChecked=0, Total=2550 [2020-10-27 01:43:10,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-27 01:43:10,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 149. [2020-10-27 01:43:10,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-27 01:43:10,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 150 transitions. [2020-10-27 01:43:10,553 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 150 transitions. Word has length 138 [2020-10-27 01:43:10,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:10,554 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 150 transitions. [2020-10-27 01:43:10,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-27 01:43:10,554 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 150 transitions. [2020-10-27 01:43:10,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-27 01:43:10,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:10,555 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:10,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-27 01:43:10,555 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:10,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:10,556 INFO L82 PathProgramCache]: Analyzing trace with hash -574497933, now seen corresponding path program 25 times [2020-10-27 01:43:10,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:10,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804995796] [2020-10-27 01:43:10,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:10,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:11,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:11,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-27 01:43:11,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:11,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1230 [2020-10-27 01:43:11,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:11,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 01:43:11,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:11,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-27 01:43:11,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:12,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:43:12,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:12,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 01:43:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:43:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:43:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:43:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:43:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:43:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:43:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:43:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:43:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:43:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:43:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:43:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:43:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:12,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:12,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:12,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:12,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:12,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:12,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:12,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:12,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:12,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:12,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:12,422 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 364 proven. 169 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-27 01:43:12,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804995796] [2020-10-27 01:43:12,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:12,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-27 01:43:12,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675547998] [2020-10-27 01:43:12,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-27 01:43:12,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:12,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-27 01:43:12,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=749, Unknown=0, NotChecked=0, Total=992 [2020-10-27 01:43:12,425 INFO L87 Difference]: Start difference. First operand 149 states and 150 transitions. Second operand 32 states. [2020-10-27 01:43:13,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:13,460 INFO L93 Difference]: Finished difference Result 218 states and 233 transitions. [2020-10-27 01:43:13,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-27 01:43:13,461 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 146 [2020-10-27 01:43:13,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:13,463 INFO L225 Difference]: With dead ends: 218 [2020-10-27 01:43:13,463 INFO L226 Difference]: Without dead ends: 152 [2020-10-27 01:43:13,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=513, Invalid=1649, Unknown=0, NotChecked=0, Total=2162 [2020-10-27 01:43:13,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-27 01:43:13,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2020-10-27 01:43:13,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-27 01:43:13,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 152 transitions. [2020-10-27 01:43:13,480 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 152 transitions. Word has length 146 [2020-10-27 01:43:13,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:13,480 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 152 transitions. [2020-10-27 01:43:13,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-27 01:43:13,480 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 152 transitions. [2020-10-27 01:43:13,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 01:43:13,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:13,481 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:13,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-27 01:43:13,482 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:13,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:13,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1190930833, now seen corresponding path program 26 times [2020-10-27 01:43:13,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:13,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57555507] [2020-10-27 01:43:13,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:13,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:14,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:14,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 01:43:14,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:14,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1386 [2020-10-27 01:43:14,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:14,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 01:43:14,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:14,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-27 01:43:14,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:15,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:15,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:43:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:43:15,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:43:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:15,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:43:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:15,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:43:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:15,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:43:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:15,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:43:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:15,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:43:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:15,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:43:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:15,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:43:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:15,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:43:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:15,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:43:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:15,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:43:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:15,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:15,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:43:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:15,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:15,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:15,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:15,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:15,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:15,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:15,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:16,001 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 26 proven. 534 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-27 01:43:16,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57555507] [2020-10-27 01:43:16,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:16,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-27 01:43:16,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580257215] [2020-10-27 01:43:16,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-27 01:43:16,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:16,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-27 01:43:16,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 01:43:16,003 INFO L87 Difference]: Start difference. First operand 151 states and 152 transitions. Second operand 35 states. [2020-10-27 01:43:18,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:18,666 INFO L93 Difference]: Finished difference Result 166 states and 167 transitions. [2020-10-27 01:43:18,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-27 01:43:18,666 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 148 [2020-10-27 01:43:18,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:18,669 INFO L225 Difference]: With dead ends: 166 [2020-10-27 01:43:18,669 INFO L226 Difference]: Without dead ends: 162 [2020-10-27 01:43:18,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=143, Invalid=2613, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 01:43:18,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-27 01:43:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 159. [2020-10-27 01:43:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-27 01:43:18,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 160 transitions. [2020-10-27 01:43:18,685 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 160 transitions. Word has length 148 [2020-10-27 01:43:18,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:18,685 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 160 transitions. [2020-10-27 01:43:18,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-27 01:43:18,686 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 160 transitions. [2020-10-27 01:43:18,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-27 01:43:18,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:18,687 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:18,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-27 01:43:18,687 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:18,688 INFO L82 PathProgramCache]: Analyzing trace with hash 594386411, now seen corresponding path program 27 times [2020-10-27 01:43:18,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:18,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023413789] [2020-10-27 01:43:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:18,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:19,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:19,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-27 01:43:19,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:19,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1285 [2020-10-27 01:43:19,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 01:43:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-27 01:43:19,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:20,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:20,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:20,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:20,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 01:43:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:20,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:43:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 01:43:20,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:43:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:20,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:43:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:20,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:43:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:20,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:43:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:20,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:43:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:20,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:43:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:20,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:43:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:20,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:43:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:20,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:43:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:20,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:43:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:20,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:43:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:20,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 01:43:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:20,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:20,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:20,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:20,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:20,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:20,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:20,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:20,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:20,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:20,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 420 proven. 196 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-27 01:43:20,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023413789] [2020-10-27 01:43:20,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:20,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-27 01:43:20,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010489161] [2020-10-27 01:43:20,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-27 01:43:20,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:20,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-27 01:43:20,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 01:43:20,693 INFO L87 Difference]: Start difference. First operand 159 states and 160 transitions. Second operand 34 states. [2020-10-27 01:43:21,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:21,815 INFO L93 Difference]: Finished difference Result 232 states and 248 transitions. [2020-10-27 01:43:21,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 01:43:21,816 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 156 [2020-10-27 01:43:21,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:21,818 INFO L225 Difference]: With dead ends: 232 [2020-10-27 01:43:21,818 INFO L226 Difference]: Without dead ends: 162 [2020-10-27 01:43:21,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=579, Invalid=1871, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 01:43:21,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-27 01:43:21,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2020-10-27 01:43:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-27 01:43:21,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 162 transitions. [2020-10-27 01:43:21,838 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 162 transitions. Word has length 156 [2020-10-27 01:43:21,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:21,839 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 162 transitions. [2020-10-27 01:43:21,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-27 01:43:21,839 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 162 transitions. [2020-10-27 01:43:21,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-27 01:43:21,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:21,840 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:21,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-27 01:43:21,840 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:21,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:21,841 INFO L82 PathProgramCache]: Analyzing trace with hash -311730551, now seen corresponding path program 28 times [2020-10-27 01:43:21,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:21,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40284222] [2020-10-27 01:43:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:21,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:23,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:23,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-27 01:43:23,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:23,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1579 [2020-10-27 01:43:23,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:23,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 01:43:23,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:23,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-27 01:43:23,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:24,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:24,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:24,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:43:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:43:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:43:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:43:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:43:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:43:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:43:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:43:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:43:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:43:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:43:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:43:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:43:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:43:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:24,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:24,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:24,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:24,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:24,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:24,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:24,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:24,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:24,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:24,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:24,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 28 proven. 617 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-27 01:43:24,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40284222] [2020-10-27 01:43:24,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:24,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-27 01:43:24,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16485622] [2020-10-27 01:43:24,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-27 01:43:24,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:24,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-27 01:43:24,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2020-10-27 01:43:24,657 INFO L87 Difference]: Start difference. First operand 161 states and 162 transitions. Second operand 37 states. [2020-10-27 01:43:27,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:27,703 INFO L93 Difference]: Finished difference Result 176 states and 177 transitions. [2020-10-27 01:43:27,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-27 01:43:27,704 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 158 [2020-10-27 01:43:27,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:27,706 INFO L225 Difference]: With dead ends: 176 [2020-10-27 01:43:27,706 INFO L226 Difference]: Without dead ends: 172 [2020-10-27 01:43:27,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=3036, Unknown=0, NotChecked=0, Total=3192 [2020-10-27 01:43:27,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-27 01:43:27,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2020-10-27 01:43:27,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-27 01:43:27,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 170 transitions. [2020-10-27 01:43:27,723 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 170 transitions. Word has length 158 [2020-10-27 01:43:27,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:27,723 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 170 transitions. [2020-10-27 01:43:27,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-27 01:43:27,723 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 170 transitions. [2020-10-27 01:43:27,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-27 01:43:27,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:27,724 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:27,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-27 01:43:27,725 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:27,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:27,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1941199587, now seen corresponding path program 29 times [2020-10-27 01:43:27,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:27,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130310806] [2020-10-27 01:43:27,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:27,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-27 01:43:29,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1357 [2020-10-27 01:43:29,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 01:43:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 184 [2020-10-27 01:43:29,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:29,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:29,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:29,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:29,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 01:43:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:29,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:43:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:29,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:43:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:29,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:43:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:29,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:43:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:29,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:43:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:29,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:43:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:29,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:43:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:29,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:43:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:29,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:43:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:29,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:43:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:29,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:43:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:29,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:43:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:29,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:43:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:29,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 01:43:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:29,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:29,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:29,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:29,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:29,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:29,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:29,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:29,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:29,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:29,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:29,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 480 proven. 225 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-27 01:43:29,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130310806] [2020-10-27 01:43:29,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:29,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-27 01:43:29,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36753819] [2020-10-27 01:43:29,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-27 01:43:29,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:29,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-27 01:43:29,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2020-10-27 01:43:29,860 INFO L87 Difference]: Start difference. First operand 169 states and 170 transitions. Second operand 36 states. [2020-10-27 01:43:30,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:30,838 INFO L93 Difference]: Finished difference Result 246 states and 263 transitions. [2020-10-27 01:43:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-27 01:43:30,839 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 166 [2020-10-27 01:43:30,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:30,841 INFO L225 Difference]: With dead ends: 246 [2020-10-27 01:43:30,841 INFO L226 Difference]: Without dead ends: 172 [2020-10-27 01:43:30,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=649, Invalid=2107, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 01:43:30,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-27 01:43:30,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 171. [2020-10-27 01:43:30,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-27 01:43:30,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 172 transitions. [2020-10-27 01:43:30,873 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 172 transitions. Word has length 166 [2020-10-27 01:43:30,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:30,874 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 172 transitions. [2020-10-27 01:43:30,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-27 01:43:30,874 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 172 transitions. [2020-10-27 01:43:30,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-27 01:43:30,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:30,875 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:30,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-27 01:43:30,876 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:30,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:30,876 INFO L82 PathProgramCache]: Analyzing trace with hash 279473665, now seen corresponding path program 30 times [2020-10-27 01:43:30,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:30,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713193302] [2020-10-27 01:43:30,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:30,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:32,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:32,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-27 01:43:32,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:32,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1704 [2020-10-27 01:43:32,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 01:43:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-27 01:43:32,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:33,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:43:33,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:33,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:43:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:33,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:43:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:43:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:43:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:43:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:43:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:43:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:43:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:43:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:43:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:43:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:43:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:33,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:43:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:33,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:43:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 01:43:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:33,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:33,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:33,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:33,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:33,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:33,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:33,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:33,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 30 proven. 706 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-27 01:43:33,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713193302] [2020-10-27 01:43:33,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:33,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-27 01:43:33,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704636962] [2020-10-27 01:43:33,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-27 01:43:33,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:33,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-27 01:43:33,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 01:43:33,930 INFO L87 Difference]: Start difference. First operand 171 states and 172 transitions. Second operand 39 states. [2020-10-27 01:43:37,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:37,290 INFO L93 Difference]: Finished difference Result 186 states and 187 transitions. [2020-10-27 01:43:37,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-27 01:43:37,291 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 168 [2020-10-27 01:43:37,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:37,292 INFO L225 Difference]: With dead ends: 186 [2020-10-27 01:43:37,293 INFO L226 Difference]: Without dead ends: 182 [2020-10-27 01:43:37,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=164, Invalid=3376, Unknown=0, NotChecked=0, Total=3540 [2020-10-27 01:43:37,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-27 01:43:37,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 179. [2020-10-27 01:43:37,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-27 01:43:37,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 180 transitions. [2020-10-27 01:43:37,312 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 180 transitions. Word has length 168 [2020-10-27 01:43:37,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:37,312 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 180 transitions. [2020-10-27 01:43:37,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-27 01:43:37,313 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 180 transitions. [2020-10-27 01:43:37,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-27 01:43:37,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:37,314 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:37,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-27 01:43:37,314 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:37,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:37,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1937345957, now seen corresponding path program 31 times [2020-10-27 01:43:37,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:37,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646856600] [2020-10-27 01:43:37,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:37,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:38,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:38,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-27 01:43:38,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:38,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1092 [2020-10-27 01:43:38,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:38,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-27 01:43:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-27 01:43:38,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:39,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:39,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:39,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:39,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 01:43:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:43:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:39,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:43:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:43:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:39,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:43:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:43:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:39,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:43:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:43:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:43:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:43:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:43:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:43:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:43:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:43:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 01:43:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 01:43:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:39,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:39,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:39,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:39,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:39,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:39,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:39,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:39,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:39,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 544 proven. 256 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-27 01:43:39,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646856600] [2020-10-27 01:43:39,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:39,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-27 01:43:39,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480934957] [2020-10-27 01:43:39,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-27 01:43:39,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:39,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-27 01:43:39,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 01:43:39,188 INFO L87 Difference]: Start difference. First operand 179 states and 180 transitions. Second operand 38 states. [2020-10-27 01:43:40,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:40,554 INFO L93 Difference]: Finished difference Result 260 states and 278 transitions. [2020-10-27 01:43:40,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-27 01:43:40,555 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 176 [2020-10-27 01:43:40,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:40,556 INFO L225 Difference]: With dead ends: 260 [2020-10-27 01:43:40,556 INFO L226 Difference]: Without dead ends: 182 [2020-10-27 01:43:40,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=723, Invalid=2357, Unknown=0, NotChecked=0, Total=3080 [2020-10-27 01:43:40,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-27 01:43:40,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2020-10-27 01:43:40,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-27 01:43:40,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 182 transitions. [2020-10-27 01:43:40,577 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 182 transitions. Word has length 176 [2020-10-27 01:43:40,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:40,577 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 182 transitions. [2020-10-27 01:43:40,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-27 01:43:40,577 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 182 transitions. [2020-10-27 01:43:40,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-27 01:43:40,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:40,579 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:40,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-27 01:43:40,579 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:40,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:40,579 INFO L82 PathProgramCache]: Analyzing trace with hash -192169991, now seen corresponding path program 32 times [2020-10-27 01:43:40,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:40,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798282622] [2020-10-27 01:43:40,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:40,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:42,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:42,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-27 01:43:42,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:42,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1429 [2020-10-27 01:43:42,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 01:43:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-27 01:43:42,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:43,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:43,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:43,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:43,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:43:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:43,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:43:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:43,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:43:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:43,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:43:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:43,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:43:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:43,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:43:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:43,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:43:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:43,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:43:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:43,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:43:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:43,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:43:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:43,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:43:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:43,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:43:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:43,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 01:43:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:43,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 01:43:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:43,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 01:43:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:43,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 01:43:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:43,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:43,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:43,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:43,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:43,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:43,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:43,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:43,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 32 proven. 801 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-27 01:43:43,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798282622] [2020-10-27 01:43:43,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:43,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-27 01:43:43,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452105363] [2020-10-27 01:43:43,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-27 01:43:43,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:43,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-27 01:43:43,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-10-27 01:43:43,540 INFO L87 Difference]: Start difference. First operand 181 states and 182 transitions. Second operand 41 states. [2020-10-27 01:43:47,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:47,300 INFO L93 Difference]: Finished difference Result 196 states and 197 transitions. [2020-10-27 01:43:47,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-27 01:43:47,300 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 178 [2020-10-27 01:43:47,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:47,302 INFO L225 Difference]: With dead ends: 196 [2020-10-27 01:43:47,302 INFO L226 Difference]: Without dead ends: 192 [2020-10-27 01:43:47,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=167, Invalid=3615, Unknown=0, NotChecked=0, Total=3782 [2020-10-27 01:43:47,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-27 01:43:47,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2020-10-27 01:43:47,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-27 01:43:47,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 190 transitions. [2020-10-27 01:43:47,322 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 190 transitions. Word has length 178 [2020-10-27 01:43:47,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:47,322 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 190 transitions. [2020-10-27 01:43:47,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-27 01:43:47,322 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 190 transitions. [2020-10-27 01:43:47,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-27 01:43:47,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:47,324 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:47,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-27 01:43:47,324 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:47,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:47,325 INFO L82 PathProgramCache]: Analyzing trace with hash 56378451, now seen corresponding path program 33 times [2020-10-27 01:43:47,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:47,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163379747] [2020-10-27 01:43:47,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:47,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:48,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:48,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-27 01:43:48,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:48,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1417 [2020-10-27 01:43:48,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 01:43:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:48,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 208 [2020-10-27 01:43:48,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:49,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:43:49,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:49,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 01:43:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:43:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:43:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:43:49,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:43:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:43:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:43:49,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:43:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:43:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:43:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:43:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:43:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:43:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:43:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 01:43:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:49,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 01:43:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 01:43:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:49,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 01:43:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:43:49,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 01:43:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:49,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:49,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:49,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:49,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:49,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:49,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:49,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:49,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 547 proven. 354 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-27 01:43:49,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163379747] [2020-10-27 01:43:49,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:49,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-27 01:43:49,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817161091] [2020-10-27 01:43:49,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-27 01:43:49,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:49,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-27 01:43:49,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1193, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 01:43:49,726 INFO L87 Difference]: Start difference. First operand 189 states and 190 transitions. Second operand 40 states. [2020-10-27 01:43:51,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:51,349 INFO L93 Difference]: Finished difference Result 274 states and 293 transitions. [2020-10-27 01:43:51,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-27 01:43:51,350 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 186 [2020-10-27 01:43:51,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:51,352 INFO L225 Difference]: With dead ends: 274 [2020-10-27 01:43:51,352 INFO L226 Difference]: Without dead ends: 192 [2020-10-27 01:43:51,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=751, Invalid=2671, Unknown=0, NotChecked=0, Total=3422 [2020-10-27 01:43:51,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-27 01:43:51,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2020-10-27 01:43:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-27 01:43:51,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 192 transitions. [2020-10-27 01:43:51,377 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 192 transitions. Word has length 186 [2020-10-27 01:43:51,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:51,377 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 192 transitions. [2020-10-27 01:43:51,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-27 01:43:51,378 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 192 transitions. [2020-10-27 01:43:51,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-27 01:43:51,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:51,379 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:51,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-27 01:43:51,379 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:51,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:51,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1920310385, now seen corresponding path program 34 times [2020-10-27 01:43:51,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:51,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628205620] [2020-10-27 01:43:51,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:51,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:53,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:53,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-27 01:43:53,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:53,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1821 [2020-10-27 01:43:53,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 01:43:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:43:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 215 [2020-10-27 01:43:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:43:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:43:54,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:54,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:43:54,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:43:54,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:43:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:43:54,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:43:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:43:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:43:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:43:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:43:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:43:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:43:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:43:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:43:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:43:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:43:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 01:43:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 01:43:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 01:43:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 01:43:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 01:43:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:54,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:43:54,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:43:54,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:43:54,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:43:54,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:43:54,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:43:54,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:43:54,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:43:54,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:43:54,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:43:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 34 proven. 902 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-27 01:43:54,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628205620] [2020-10-27 01:43:54,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:43:54,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-10-27 01:43:54,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853937242] [2020-10-27 01:43:54,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-10-27 01:43:54,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:43:54,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-10-27 01:43:54,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1722, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 01:43:54,831 INFO L87 Difference]: Start difference. First operand 191 states and 192 transitions. Second operand 43 states. [2020-10-27 01:43:58,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:43:58,833 INFO L93 Difference]: Finished difference Result 206 states and 207 transitions. [2020-10-27 01:43:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-27 01:43:58,834 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 188 [2020-10-27 01:43:58,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:43:58,836 INFO L225 Difference]: With dead ends: 206 [2020-10-27 01:43:58,836 INFO L226 Difference]: Without dead ends: 202 [2020-10-27 01:43:58,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=177, Invalid=3983, Unknown=0, NotChecked=0, Total=4160 [2020-10-27 01:43:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-27 01:43:58,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2020-10-27 01:43:58,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-27 01:43:58,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 200 transitions. [2020-10-27 01:43:58,859 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 200 transitions. Word has length 188 [2020-10-27 01:43:58,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:43:58,860 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 200 transitions. [2020-10-27 01:43:58,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-10-27 01:43:58,860 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 200 transitions. [2020-10-27 01:43:58,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-27 01:43:58,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:43:58,861 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:43:58,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-27 01:43:58,862 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:43:58,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:43:58,862 INFO L82 PathProgramCache]: Analyzing trace with hash -80334645, now seen corresponding path program 35 times [2020-10-27 01:43:58,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:43:58,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868180184] [2020-10-27 01:43:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:43:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:43:58,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:00,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:00,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-27 01:44:00,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:00,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1409 [2020-10-27 01:44:00,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:00,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-27 01:44:00,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:44:00,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-27 01:44:00,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:44:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:44:01,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:01,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:44:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:44:01,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 01:44:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:01,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:44:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:01,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:44:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:01,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:44:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:01,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:44:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:01,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:44:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:01,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:44:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:01,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:44:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:01,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:44:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:01,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:44:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:01,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:44:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:01,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:44:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:01,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 01:44:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:01,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 01:44:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:01,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 01:44:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:01,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 01:44:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:01,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 01:44:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:01,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-27 01:44:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:01,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:01,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:01,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:01,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:01,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:01,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:01,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:01,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:01,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:01,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 684 proven. 324 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-10-27 01:44:01,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868180184] [2020-10-27 01:44:01,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:44:01,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-27 01:44:01,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355675254] [2020-10-27 01:44:01,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-27 01:44:01,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:44:01,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-27 01:44:01,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=1299, Unknown=0, NotChecked=0, Total=1722 [2020-10-27 01:44:01,326 INFO L87 Difference]: Start difference. First operand 199 states and 200 transitions. Second operand 42 states. [2020-10-27 01:44:03,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:44:03,032 INFO L93 Difference]: Finished difference Result 288 states and 308 transitions. [2020-10-27 01:44:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-27 01:44:03,036 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 196 [2020-10-27 01:44:03,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:44:03,037 INFO L225 Difference]: With dead ends: 288 [2020-10-27 01:44:03,037 INFO L226 Difference]: Without dead ends: 202 [2020-10-27 01:44:03,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=883, Invalid=2899, Unknown=0, NotChecked=0, Total=3782 [2020-10-27 01:44:03,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-27 01:44:03,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 201. [2020-10-27 01:44:03,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-27 01:44:03,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 202 transitions. [2020-10-27 01:44:03,057 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 202 transitions. Word has length 196 [2020-10-27 01:44:03,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:44:03,057 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 202 transitions. [2020-10-27 01:44:03,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-27 01:44:03,058 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 202 transitions. [2020-10-27 01:44:03,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-27 01:44:03,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:44:03,059 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:44:03,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-27 01:44:03,059 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:44:03,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:44:03,060 INFO L82 PathProgramCache]: Analyzing trace with hash 793672553, now seen corresponding path program 36 times [2020-10-27 01:44:03,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:44:03,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49636948] [2020-10-27 01:44:03,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:44:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:03,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:04,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:04,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 01:44:04,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:04,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1808 [2020-10-27 01:44:04,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:04,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 01:44:04,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:44:04,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 227 [2020-10-27 01:44:04,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:44:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:44:06,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:44:06,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:44:06,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:44:06,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:44:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:44:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:44:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:06,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:44:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:44:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:44:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:44:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:44:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:06,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:44:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:44:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:44:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:06,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:44:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:06,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:44:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:06,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 01:44:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-27 01:44:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-27 01:44:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-27 01:44:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-27 01:44:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:06,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:06,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:06,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:06,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:06,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:06,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:06,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:06,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 36 proven. 1009 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-10-27 01:44:06,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49636948] [2020-10-27 01:44:06,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:44:06,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-10-27 01:44:06,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896602451] [2020-10-27 01:44:06,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-10-27 01:44:06,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:44:06,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-10-27 01:44:06,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2020-10-27 01:44:06,667 INFO L87 Difference]: Start difference. First operand 201 states and 202 transitions. Second operand 45 states. [2020-10-27 01:44:11,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:44:11,214 INFO L93 Difference]: Finished difference Result 216 states and 217 transitions. [2020-10-27 01:44:11,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-27 01:44:11,214 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 198 [2020-10-27 01:44:11,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:44:11,216 INFO L225 Difference]: With dead ends: 216 [2020-10-27 01:44:11,216 INFO L226 Difference]: Without dead ends: 212 [2020-10-27 01:44:11,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=188, Invalid=4504, Unknown=0, NotChecked=0, Total=4692 [2020-10-27 01:44:11,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-27 01:44:11,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 209. [2020-10-27 01:44:11,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-27 01:44:11,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 210 transitions. [2020-10-27 01:44:11,237 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 210 transitions. Word has length 198 [2020-10-27 01:44:11,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:44:11,239 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 210 transitions. [2020-10-27 01:44:11,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-10-27 01:44:11,239 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 210 transitions. [2020-10-27 01:44:11,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-27 01:44:11,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:44:11,241 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:44:11,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-27 01:44:11,241 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:44:11,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:44:11,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1520211907, now seen corresponding path program 37 times [2020-10-27 01:44:11,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:44:11,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407429590] [2020-10-27 01:44:11,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:44:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:11,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:12,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:12,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-27 01:44:12,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:12,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1610 [2020-10-27 01:44:12,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:12,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 01:44:12,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:44:12,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 232 [2020-10-27 01:44:12,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:44:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:44:13,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:13,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:44:13,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:44:13,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 01:44:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:44:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:44:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:44:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:44:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:13,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:44:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:44:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:44:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:13,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:44:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:13,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:44:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:13,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:44:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:44:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:44:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 01:44:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-27 01:44:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-27 01:44:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-27 01:44:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-27 01:44:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 01:44:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:13,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:13,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:13,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:13,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:13,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:13,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:13,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:13,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:13,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:13,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:13,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 760 proven. 361 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-27 01:44:13,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407429590] [2020-10-27 01:44:13,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:44:13,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-27 01:44:13,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326653704] [2020-10-27 01:44:13,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-27 01:44:13,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:44:13,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-27 01:44:13,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=1427, Unknown=0, NotChecked=0, Total=1892 [2020-10-27 01:44:13,994 INFO L87 Difference]: Start difference. First operand 209 states and 210 transitions. Second operand 44 states. [2020-10-27 01:44:15,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:44:15,378 INFO L93 Difference]: Finished difference Result 302 states and 323 transitions. [2020-10-27 01:44:15,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-27 01:44:15,378 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 206 [2020-10-27 01:44:15,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:44:15,381 INFO L225 Difference]: With dead ends: 302 [2020-10-27 01:44:15,381 INFO L226 Difference]: Without dead ends: 212 [2020-10-27 01:44:15,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=969, Invalid=3191, Unknown=0, NotChecked=0, Total=4160 [2020-10-27 01:44:15,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-27 01:44:15,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 211. [2020-10-27 01:44:15,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-27 01:44:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 212 transitions. [2020-10-27 01:44:15,403 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 212 transitions. Word has length 206 [2020-10-27 01:44:15,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:44:15,403 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 212 transitions. [2020-10-27 01:44:15,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-27 01:44:15,403 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 212 transitions. [2020-10-27 01:44:15,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-27 01:44:15,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:44:15,405 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:44:15,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-27 01:44:15,405 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:44:15,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:44:15,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1367782625, now seen corresponding path program 38 times [2020-10-27 01:44:15,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:44:15,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716230419] [2020-10-27 01:44:15,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:44:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:15,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:17,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:17,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-27 01:44:17,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:17,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1906 [2020-10-27 01:44:17,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:17,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 01:44:17,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:44:17,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 239 [2020-10-27 01:44:17,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:44:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:44:19,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:19,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:44:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:44:19,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:44:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:44:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:44:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:19,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:44:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:19,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:44:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:44:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:44:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:44:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:44:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:44:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:44:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:44:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:44:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 01:44:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 01:44:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-27 01:44:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-27 01:44:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:19,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-27 01:44:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-27 01:44:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:19,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:19,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:19,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:19,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:19,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:19,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:19,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:19,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:19,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:19,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:19,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 38 proven. 1122 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-27 01:44:19,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716230419] [2020-10-27 01:44:19,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:44:19,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2020-10-27 01:44:19,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437641548] [2020-10-27 01:44:19,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-10-27 01:44:19,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:44:19,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-10-27 01:44:19,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=2070, Unknown=0, NotChecked=0, Total=2162 [2020-10-27 01:44:19,289 INFO L87 Difference]: Start difference. First operand 211 states and 212 transitions. Second operand 47 states. [2020-10-27 01:44:24,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:44:24,147 INFO L93 Difference]: Finished difference Result 226 states and 227 transitions. [2020-10-27 01:44:24,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-27 01:44:24,148 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 208 [2020-10-27 01:44:24,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:44:24,150 INFO L225 Difference]: With dead ends: 226 [2020-10-27 01:44:24,150 INFO L226 Difference]: Without dead ends: 222 [2020-10-27 01:44:24,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=193, Invalid=4777, Unknown=0, NotChecked=0, Total=4970 [2020-10-27 01:44:24,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-10-27 01:44:24,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 219. [2020-10-27 01:44:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-10-27 01:44:24,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 220 transitions. [2020-10-27 01:44:24,175 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 220 transitions. Word has length 208 [2020-10-27 01:44:24,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:44:24,175 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 220 transitions. [2020-10-27 01:44:24,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-10-27 01:44:24,175 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 220 transitions. [2020-10-27 01:44:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-27 01:44:24,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:44:24,177 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:44:24,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-27 01:44:24,177 INFO L429 AbstractCegarLoop]: === Iteration 42 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:44:24,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:44:24,178 INFO L82 PathProgramCache]: Analyzing trace with hash -2120230597, now seen corresponding path program 39 times [2020-10-27 01:44:24,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:44:24,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989440495] [2020-10-27 01:44:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:44:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:24,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:26,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:26,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-27 01:44:26,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1973 [2020-10-27 01:44:26,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-27 01:44:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:44:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-27 01:44:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:44:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:44:27,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:44:27,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:44:27,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 01:44:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:44:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:44:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:44:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:44:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:44:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:44:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:44:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:44:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:44:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:44:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:44:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:44:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 01:44:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:27,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 01:44:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-27 01:44:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-27 01:44:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-27 01:44:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-27 01:44:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-10-27 01:44:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:27,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:27,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:27,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:27,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:27,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:27,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:27,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:27,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:27,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:27,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:27,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2000 backedges. 840 proven. 400 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-10-27 01:44:27,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989440495] [2020-10-27 01:44:27,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:44:27,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-27 01:44:27,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135207821] [2020-10-27 01:44:27,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-27 01:44:27,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:44:27,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-27 01:44:27,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2020-10-27 01:44:27,400 INFO L87 Difference]: Start difference. First operand 219 states and 220 transitions. Second operand 46 states. [2020-10-27 01:44:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:44:29,533 INFO L93 Difference]: Finished difference Result 316 states and 338 transitions. [2020-10-27 01:44:29,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-27 01:44:29,534 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 216 [2020-10-27 01:44:29,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:44:29,537 INFO L225 Difference]: With dead ends: 316 [2020-10-27 01:44:29,537 INFO L226 Difference]: Without dead ends: 222 [2020-10-27 01:44:29,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1059, Invalid=3497, Unknown=0, NotChecked=0, Total=4556 [2020-10-27 01:44:29,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-10-27 01:44:29,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 221. [2020-10-27 01:44:29,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-27 01:44:29,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 222 transitions. [2020-10-27 01:44:29,560 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 222 transitions. Word has length 216 [2020-10-27 01:44:29,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:44:29,560 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 222 transitions. [2020-10-27 01:44:29,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-27 01:44:29,560 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 222 transitions. [2020-10-27 01:44:29,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-27 01:44:29,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:44:29,562 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:44:29,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-27 01:44:29,562 INFO L429 AbstractCegarLoop]: === Iteration 43 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:44:29,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:44:29,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1223251751, now seen corresponding path program 40 times [2020-10-27 01:44:29,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:44:29,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865365783] [2020-10-27 01:44:29,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:44:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:29,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:31,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:31,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-27 01:44:31,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:31,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2092 [2020-10-27 01:44:31,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:31,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-27 01:44:31,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:44:31,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-27 01:44:31,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:44:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:44:33,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:44:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:44:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:44:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:44:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:44:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:44:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:44:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:44:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:44:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:44:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:44:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:44:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:44:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:33,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 01:44:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:33,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 01:44:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:33,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 01:44:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:33,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 01:44:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:33,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 01:44:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:33,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-27 01:44:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:33,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-27 01:44:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:33,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-27 01:44:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:33,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-27 01:44:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:33,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:33,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:33,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:33,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:33,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:33,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:33,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2041 backedges. 40 proven. 1241 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-10-27 01:44:33,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865365783] [2020-10-27 01:44:33,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:44:33,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2020-10-27 01:44:33,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077048771] [2020-10-27 01:44:33,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-10-27 01:44:33,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:44:33,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-10-27 01:44:33,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=2257, Unknown=0, NotChecked=0, Total=2352 [2020-10-27 01:44:33,829 INFO L87 Difference]: Start difference. First operand 221 states and 222 transitions. Second operand 49 states. [2020-10-27 01:44:39,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:44:39,143 INFO L93 Difference]: Finished difference Result 236 states and 237 transitions. [2020-10-27 01:44:39,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-10-27 01:44:39,144 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 218 [2020-10-27 01:44:39,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:44:39,146 INFO L225 Difference]: With dead ends: 236 [2020-10-27 01:44:39,146 INFO L226 Difference]: Without dead ends: 232 [2020-10-27 01:44:39,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=204, Invalid=5346, Unknown=0, NotChecked=0, Total=5550 [2020-10-27 01:44:39,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-27 01:44:39,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 229. [2020-10-27 01:44:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-27 01:44:39,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 230 transitions. [2020-10-27 01:44:39,169 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 230 transitions. Word has length 218 [2020-10-27 01:44:39,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:44:39,169 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 230 transitions. [2020-10-27 01:44:39,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-10-27 01:44:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 230 transitions. [2020-10-27 01:44:39,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-27 01:44:39,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:44:39,171 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:44:39,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-27 01:44:39,171 INFO L429 AbstractCegarLoop]: === Iteration 44 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:44:39,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:44:39,172 INFO L82 PathProgramCache]: Analyzing trace with hash 2144884019, now seen corresponding path program 41 times [2020-10-27 01:44:39,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:44:39,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844697562] [2020-10-27 01:44:39,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:44:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:39,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:41,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:41,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-10-27 01:44:41,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:41,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1869 [2020-10-27 01:44:41,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:41,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 01:44:41,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:44:41,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 256 [2020-10-27 01:44:41,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:44:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:44:42,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:42,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:44:42,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:44:42,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 01:44:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:44:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:44:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:44:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:42,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:44:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:44:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:42,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:44:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:44:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:44:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:44:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:44:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 01:44:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 01:44:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 01:44:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 01:44:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 01:44:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-27 01:44:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:42,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-27 01:44:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-27 01:44:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:42,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-27 01:44:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:42,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-27 01:44:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:42,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:42,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:42,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:42,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:42,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:42,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:42,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:42,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2205 backedges. 924 proven. 441 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-10-27 01:44:42,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844697562] [2020-10-27 01:44:42,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:44:42,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2020-10-27 01:44:42,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610204417] [2020-10-27 01:44:42,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-10-27 01:44:42,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:44:42,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-10-27 01:44:42,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=555, Invalid=1701, Unknown=0, NotChecked=0, Total=2256 [2020-10-27 01:44:42,432 INFO L87 Difference]: Start difference. First operand 229 states and 230 transitions. Second operand 48 states. [2020-10-27 01:44:44,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:44:44,692 INFO L93 Difference]: Finished difference Result 330 states and 353 transitions. [2020-10-27 01:44:44,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-27 01:44:44,693 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 226 [2020-10-27 01:44:44,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:44:44,695 INFO L225 Difference]: With dead ends: 330 [2020-10-27 01:44:44,695 INFO L226 Difference]: Without dead ends: 232 [2020-10-27 01:44:44,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1153, Invalid=3817, Unknown=0, NotChecked=0, Total=4970 [2020-10-27 01:44:44,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-27 01:44:44,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 231. [2020-10-27 01:44:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-10-27 01:44:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 232 transitions. [2020-10-27 01:44:44,720 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 232 transitions. Word has length 226 [2020-10-27 01:44:44,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:44:44,721 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 232 transitions. [2020-10-27 01:44:44,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-10-27 01:44:44,721 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 232 transitions. [2020-10-27 01:44:44,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-27 01:44:44,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:44:44,723 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:44:44,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-27 01:44:44,723 INFO L429 AbstractCegarLoop]: === Iteration 45 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:44:44,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:44:44,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1417758895, now seen corresponding path program 42 times [2020-10-27 01:44:44,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:44:44,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81594093] [2020-10-27 01:44:44,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:44:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:44,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:47,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:47,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-27 01:44:47,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:47,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2331 [2020-10-27 01:44:47,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-27 01:44:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:44:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-27 01:44:47,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:44:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:44:49,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:44:49,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:44:49,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:44:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:44:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:44:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:44:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:44:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:44:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:44:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:44:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:44:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:44:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:49,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:44:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:49,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 01:44:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 01:44:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 01:44:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:49,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 01:44:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:49,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 01:44:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-27 01:44:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:49,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-27 01:44:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:49,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-27 01:44:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:49,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-27 01:44:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:49,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-27 01:44:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:49,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:49,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:49,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:49,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:49,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:49,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2248 backedges. 42 proven. 1366 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-10-27 01:44:49,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81594093] [2020-10-27 01:44:49,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:44:49,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2020-10-27 01:44:49,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81766600] [2020-10-27 01:44:49,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-10-27 01:44:49,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:44:49,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-10-27 01:44:49,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=2451, Unknown=0, NotChecked=0, Total=2550 [2020-10-27 01:44:49,451 INFO L87 Difference]: Start difference. First operand 231 states and 232 transitions. Second operand 51 states. [2020-10-27 01:44:55,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:44:55,198 INFO L93 Difference]: Finished difference Result 246 states and 247 transitions. [2020-10-27 01:44:55,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-27 01:44:55,199 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 228 [2020-10-27 01:44:55,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:44:55,201 INFO L225 Difference]: With dead ends: 246 [2020-10-27 01:44:55,201 INFO L226 Difference]: Without dead ends: 242 [2020-10-27 01:44:55,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=207, Invalid=5645, Unknown=0, NotChecked=0, Total=5852 [2020-10-27 01:44:55,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-27 01:44:55,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 239. [2020-10-27 01:44:55,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-10-27 01:44:55,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 240 transitions. [2020-10-27 01:44:55,225 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 240 transitions. Word has length 228 [2020-10-27 01:44:55,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:44:55,225 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 240 transitions. [2020-10-27 01:44:55,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-10-27 01:44:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 240 transitions. [2020-10-27 01:44:55,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-27 01:44:55,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:44:55,227 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:44:55,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-27 01:44:55,227 INFO L429 AbstractCegarLoop]: === Iteration 46 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:44:55,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:44:55,228 INFO L82 PathProgramCache]: Analyzing trace with hash -899257429, now seen corresponding path program 43 times [2020-10-27 01:44:55,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:44:55,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544386318] [2020-10-27 01:44:55,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:44:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:55,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:57,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:57,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-27 01:44:57,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:57,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2055 [2020-10-27 01:44:57,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:57,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-27 01:44:57,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:44:57,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-27 01:44:57,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:44:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:44:58,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:58,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:44:58,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:44:58,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 01:44:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 01:44:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 01:44:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 01:44:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 01:44:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 01:44:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 01:44:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 01:44:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 01:44:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 01:44:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 01:44:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 01:44:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 01:44:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 01:44:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 01:44:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 01:44:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-27 01:44:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:44:58,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-27 01:44:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-27 01:44:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-27 01:44:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-27 01:44:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-27 01:44:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:44:58,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:44:58,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:44:58,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:44:58,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:44:58,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:44:58,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:44:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:44:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:44:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:44:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:44:58,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 1012 proven. 484 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-10-27 01:44:58,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544386318] [2020-10-27 01:44:58,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:44:58,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2020-10-27 01:44:58,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659519713] [2020-10-27 01:44:58,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-10-27 01:44:58,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:44:58,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-10-27 01:44:58,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=603, Invalid=1847, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 01:44:58,798 INFO L87 Difference]: Start difference. First operand 239 states and 240 transitions. Second operand 50 states. [2020-10-27 01:45:01,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:45:01,257 INFO L93 Difference]: Finished difference Result 344 states and 368 transitions. [2020-10-27 01:45:01,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-10-27 01:45:01,258 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 236 [2020-10-27 01:45:01,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:45:01,261 INFO L225 Difference]: With dead ends: 344 [2020-10-27 01:45:01,261 INFO L226 Difference]: Without dead ends: 242 [2020-10-27 01:45:01,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1251, Invalid=4151, Unknown=0, NotChecked=0, Total=5402 [2020-10-27 01:45:01,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-27 01:45:01,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 241. [2020-10-27 01:45:01,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-27 01:45:01,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 242 transitions. [2020-10-27 01:45:01,285 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 242 transitions. Word has length 236 [2020-10-27 01:45:01,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:45:01,286 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 242 transitions. [2020-10-27 01:45:01,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-10-27 01:45:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 242 transitions. [2020-10-27 01:45:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-27 01:45:01,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:45:01,288 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:45:01,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-27 01:45:01,288 INFO L429 AbstractCegarLoop]: === Iteration 47 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:45:01,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:45:01,288 INFO L82 PathProgramCache]: Analyzing trace with hash 499597385, now seen corresponding path program 44 times [2020-10-27 01:45:01,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:45:01,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456547749] [2020-10-27 01:45:01,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:45:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:01,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:03,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:03,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-27 01:45:03,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2555 [2020-10-27 01:45:03,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-27 01:45:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:45:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 275 [2020-10-27 01:45:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:45:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:45:06,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:45:06,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:45:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:45:06,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:45:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:45:06,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:45:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:45:06,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:45:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:45:06,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:45:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:45:06,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:45:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:45:06,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:45:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:45:06,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:45:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:45:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:45:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:45:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:45:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:45:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 01:45:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-27 01:45:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-27 01:45:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-27 01:45:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-27 01:45:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 01:45:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-27 01:45:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-27 01:45:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-27 01:45:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:06,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-10-27 01:45:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:06,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:06,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:06,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:06,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:06,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:06,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:06,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 44 proven. 1497 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-10-27 01:45:07,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456547749] [2020-10-27 01:45:07,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:45:07,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2020-10-27 01:45:07,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870827727] [2020-10-27 01:45:07,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-10-27 01:45:07,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:45:07,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-10-27 01:45:07,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=2652, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 01:45:07,015 INFO L87 Difference]: Start difference. First operand 241 states and 242 transitions. Second operand 53 states. [2020-10-27 01:45:13,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:45:13,697 INFO L93 Difference]: Finished difference Result 256 states and 257 transitions. [2020-10-27 01:45:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-27 01:45:13,698 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 238 [2020-10-27 01:45:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:45:13,699 INFO L225 Difference]: With dead ends: 256 [2020-10-27 01:45:13,699 INFO L226 Difference]: Without dead ends: 252 [2020-10-27 01:45:13,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=217, Invalid=6103, Unknown=0, NotChecked=0, Total=6320 [2020-10-27 01:45:13,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-27 01:45:13,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 249. [2020-10-27 01:45:13,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-27 01:45:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 250 transitions. [2020-10-27 01:45:13,728 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 250 transitions. Word has length 238 [2020-10-27 01:45:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:45:13,728 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 250 transitions. [2020-10-27 01:45:13,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-10-27 01:45:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 250 transitions. [2020-10-27 01:45:13,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-27 01:45:13,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:45:13,730 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:45:13,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-27 01:45:13,730 INFO L429 AbstractCegarLoop]: === Iteration 48 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:45:13,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:45:13,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1911717027, now seen corresponding path program 45 times [2020-10-27 01:45:13,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:45:13,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493991479] [2020-10-27 01:45:13,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:45:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:13,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:16,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:16,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-27 01:45:16,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:16,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2604 [2020-10-27 01:45:16,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 01:45:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:45:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 280 [2020-10-27 01:45:16,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:45:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:45:17,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:17,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:45:17,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:45:17,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 01:45:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 01:45:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 01:45:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 01:45:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 01:45:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 01:45:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 01:45:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 01:45:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 01:45:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 01:45:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 01:45:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 01:45:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:17,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 01:45:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:17,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-27 01:45:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-27 01:45:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-27 01:45:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-27 01:45:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 01:45:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-27 01:45:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-27 01:45:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-27 01:45:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-10-27 01:45:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:17,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-27 01:45:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:17,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:17,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:17,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:17,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:17,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:17,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:17,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 1104 proven. 529 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-10-27 01:45:18,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493991479] [2020-10-27 01:45:18,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:45:18,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2020-10-27 01:45:18,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368853500] [2020-10-27 01:45:18,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-10-27 01:45:18,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:45:18,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-10-27 01:45:18,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=653, Invalid=1999, Unknown=0, NotChecked=0, Total=2652 [2020-10-27 01:45:18,010 INFO L87 Difference]: Start difference. First operand 249 states and 250 transitions. Second operand 52 states. [2020-10-27 01:45:20,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:45:20,739 INFO L93 Difference]: Finished difference Result 358 states and 383 transitions. [2020-10-27 01:45:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-27 01:45:20,740 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 246 [2020-10-27 01:45:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:45:20,742 INFO L225 Difference]: With dead ends: 358 [2020-10-27 01:45:20,743 INFO L226 Difference]: Without dead ends: 252 [2020-10-27 01:45:20,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1353, Invalid=4499, Unknown=0, NotChecked=0, Total=5852 [2020-10-27 01:45:20,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-27 01:45:20,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 251. [2020-10-27 01:45:20,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-27 01:45:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 252 transitions. [2020-10-27 01:45:20,769 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 252 transitions. Word has length 246 [2020-10-27 01:45:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:45:20,769 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 252 transitions. [2020-10-27 01:45:20,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-10-27 01:45:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 252 transitions. [2020-10-27 01:45:20,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-27 01:45:20,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:45:20,771 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:45:20,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-27 01:45:20,771 INFO L429 AbstractCegarLoop]: === Iteration 49 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:45:20,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:45:20,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1451271105, now seen corresponding path program 46 times [2020-10-27 01:45:20,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:45:20,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636610102] [2020-10-27 01:45:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:45:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:20,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:23,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:23,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-27 01:45:23,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:23,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2984 [2020-10-27 01:45:23,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:23,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 53 [2020-10-27 01:45:23,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:45:23,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-27 01:45:23,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:45:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:45:26,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:45:26,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:45:26,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:45:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:26,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:45:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:26,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:45:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:26,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:45:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:26,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:45:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:26,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:45:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:26,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:45:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:26,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:45:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:45:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:45:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:45:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:45:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 01:45:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 01:45:26,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 01:45:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-27 01:45:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-27 01:45:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-27 01:45:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-27 01:45:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-10-27 01:45:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-27 01:45:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-27 01:45:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-27 01:45:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-27 01:45:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:26,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:26,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:26,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:26,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:26,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:26,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:26,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:26,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:26,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:26,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:26,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2692 backedges. 46 proven. 1634 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-10-27 01:45:26,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636610102] [2020-10-27 01:45:26,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:45:26,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2020-10-27 01:45:26,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881022736] [2020-10-27 01:45:26,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-10-27 01:45:26,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:45:26,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-10-27 01:45:26,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=2863, Unknown=0, NotChecked=0, Total=2970 [2020-10-27 01:45:26,876 INFO L87 Difference]: Start difference. First operand 251 states and 252 transitions. Second operand 55 states. [2020-10-27 01:45:33,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:45:33,816 INFO L93 Difference]: Finished difference Result 266 states and 267 transitions. [2020-10-27 01:45:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-10-27 01:45:33,817 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 248 [2020-10-27 01:45:33,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:45:33,819 INFO L225 Difference]: With dead ends: 266 [2020-10-27 01:45:33,819 INFO L226 Difference]: Without dead ends: 262 [2020-10-27 01:45:33,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=228, Invalid=6744, Unknown=0, NotChecked=0, Total=6972 [2020-10-27 01:45:33,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-27 01:45:33,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 259. [2020-10-27 01:45:33,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-10-27 01:45:33,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 260 transitions. [2020-10-27 01:45:33,846 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 260 transitions. Word has length 248 [2020-10-27 01:45:33,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:45:33,846 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 260 transitions. [2020-10-27 01:45:33,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-10-27 01:45:33,846 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 260 transitions. [2020-10-27 01:45:33,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-27 01:45:33,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:45:33,848 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:45:33,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-27 01:45:33,849 INFO L429 AbstractCegarLoop]: === Iteration 50 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:45:33,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:45:33,849 INFO L82 PathProgramCache]: Analyzing trace with hash -659757029, now seen corresponding path program 47 times [2020-10-27 01:45:33,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:45:33,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049996940] [2020-10-27 01:45:33,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:45:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:33,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:36,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:36,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-27 01:45:36,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:36,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2816 [2020-10-27 01:45:36,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-27 01:45:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:45:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 292 [2020-10-27 01:45:36,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:45:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:45:38,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:45:38,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:45:38,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 01:45:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 01:45:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 01:45:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 01:45:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 01:45:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 01:45:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 01:45:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 01:45:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 01:45:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:38,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 01:45:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 01:45:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 01:45:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 01:45:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 01:45:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-27 01:45:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:38,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-27 01:45:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-27 01:45:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-27 01:45:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-10-27 01:45:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-27 01:45:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:38,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-27 01:45:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-27 01:45:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-27 01:45:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-27 01:45:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:38,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:38,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:38,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:38,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:38,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:38,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:38,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:38,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2880 backedges. 1200 proven. 576 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-10-27 01:45:38,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049996940] [2020-10-27 01:45:38,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:45:38,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2020-10-27 01:45:38,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291759298] [2020-10-27 01:45:38,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-10-27 01:45:38,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:45:38,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-10-27 01:45:38,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=705, Invalid=2157, Unknown=0, NotChecked=0, Total=2862 [2020-10-27 01:45:38,505 INFO L87 Difference]: Start difference. First operand 259 states and 260 transitions. Second operand 54 states. [2020-10-27 01:45:40,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:45:40,238 INFO L93 Difference]: Finished difference Result 372 states and 398 transitions. [2020-10-27 01:45:40,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-27 01:45:40,240 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 256 [2020-10-27 01:45:40,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:45:40,242 INFO L225 Difference]: With dead ends: 372 [2020-10-27 01:45:40,242 INFO L226 Difference]: Without dead ends: 262 [2020-10-27 01:45:40,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 972 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1459, Invalid=4861, Unknown=0, NotChecked=0, Total=6320 [2020-10-27 01:45:40,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-27 01:45:40,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 261. [2020-10-27 01:45:40,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-27 01:45:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 262 transitions. [2020-10-27 01:45:40,271 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 262 transitions. Word has length 256 [2020-10-27 01:45:40,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:45:40,271 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 262 transitions. [2020-10-27 01:45:40,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-10-27 01:45:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 262 transitions. [2020-10-27 01:45:40,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-27 01:45:40,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:45:40,273 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:45:40,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-27 01:45:40,274 INFO L429 AbstractCegarLoop]: === Iteration 51 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:45:40,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:45:40,274 INFO L82 PathProgramCache]: Analyzing trace with hash 767771065, now seen corresponding path program 48 times [2020-10-27 01:45:40,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:45:40,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578854532] [2020-10-27 01:45:40,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:45:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:40,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:43,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:43,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-27 01:45:43,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:43,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3565 [2020-10-27 01:45:43,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:43,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-27 01:45:43,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:45:43,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 299 [2020-10-27 01:45:43,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:46,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:45:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:46,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:46,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:46,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:45:46,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:46,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:46,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:45:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:45:46,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:46,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 01:45:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:46,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:46,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:46,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:46,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:46,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:46,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:46,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:46,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 01:45:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:46,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:46,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:46,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:46,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:46,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:46,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 01:45:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:46,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:46,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:46,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:46,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:46,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:46,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 01:45:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:46,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:46,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:46,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:46,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:46,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:46,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:46,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:46,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 01:45:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:46,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:46,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:46,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:46,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:46,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:46,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:46,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:46,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:46,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:46,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:46,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 01:45:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 01:45:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 01:45:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 01:45:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 01:45:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 01:45:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 01:45:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:47,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 01:45:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:47,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 01:45:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:47,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 01:45:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:47,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-27 01:45:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-27 01:45:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:47,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-27 01:45:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:45:47,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-27 01:45:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-27 01:45:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-27 01:45:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-27 01:45:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-27 01:45:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-27 01:45:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:45:47,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:45:47,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:45:47,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:45:47,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:45:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 01:45:47,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:45:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:45:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:45:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:45:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:45:47,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2929 backedges. 48 proven. 1777 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-10-27 01:45:47,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578854532] [2020-10-27 01:45:47,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:45:47,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2020-10-27 01:45:47,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043251892] [2020-10-27 01:45:47,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-10-27 01:45:47,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:45:47,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-10-27 01:45:47,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=3081, Unknown=0, NotChecked=0, Total=3192 [2020-10-27 01:45:47,186 INFO L87 Difference]: Start difference. First operand 261 states and 262 transitions. Second operand 57 states.