/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-tiling/rewnifrev.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 14:56:56,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 14:56:56,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 14:56:56,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 14:56:56,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 14:56:56,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 14:56:56,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 14:56:56,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 14:56:56,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 14:56:56,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 14:56:56,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 14:56:56,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 14:56:56,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 14:56:56,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 14:56:56,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 14:56:56,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 14:56:56,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 14:56:56,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 14:56:56,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 14:56:56,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 14:56:56,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 14:56:56,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 14:56:56,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 14:56:56,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 14:56:56,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 14:56:56,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 14:56:56,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 14:56:56,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 14:56:56,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 14:56:56,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 14:56:56,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 14:56:56,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 14:56:56,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 14:56:56,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 14:56:56,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 14:56:56,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 14:56:56,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 14:56:56,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 14:56:56,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 14:56:56,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 14:56:56,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 14:56:56,732 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 14:56:56,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 14:56:56,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 14:56:56,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 14:56:56,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 14:56:56,802 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 14:56:56,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 14:56:56,802 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 14:56:56,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 14:56:56,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 14:56:56,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 14:56:56,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 14:56:56,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 14:56:56,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 14:56:56,804 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 14:56:56,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 14:56:56,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 14:56:56,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 14:56:56,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 14:56:56,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 14:56:56,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 14:56:56,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 14:56:56,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 14:56:56,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 14:56:56,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 14:56:56,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 14:56:56,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 14:56:56,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 14:56:56,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 14:56:56,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 14:56:56,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 14:56:57,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 14:56:57,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 14:56:57,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 14:56:57,248 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 14:56:57,249 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 14:56:57,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/rewnifrev.c [2020-10-27 14:56:57,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50648b26d/52163a58d60e434a916be9910a57f186/FLAG9d0b851ca [2020-10-27 14:56:57,953 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 14:56:57,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/rewnifrev.c [2020-10-27 14:56:57,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50648b26d/52163a58d60e434a916be9910a57f186/FLAG9d0b851ca [2020-10-27 14:56:58,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50648b26d/52163a58d60e434a916be9910a57f186 [2020-10-27 14:56:58,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 14:56:58,315 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 14:56:58,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 14:56:58,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 14:56:58,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 14:56:58,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:56:58" (1/1) ... [2020-10-27 14:56:58,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b3ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:58, skipping insertion in model container [2020-10-27 14:56:58,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:56:58" (1/1) ... [2020-10-27 14:56:58,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 14:56:58,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 14:56:58,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 14:56:58,569 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 14:56:58,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 14:56:58,612 INFO L208 MainTranslator]: Completed translation [2020-10-27 14:56:58,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:58 WrapperNode [2020-10-27 14:56:58,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 14:56:58,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 14:56:58,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 14:56:58,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 14:56:58,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:58" (1/1) ... [2020-10-27 14:56:58,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:58" (1/1) ... [2020-10-27 14:56:58,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:58" (1/1) ... [2020-10-27 14:56:58,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:58" (1/1) ... [2020-10-27 14:56:58,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:58" (1/1) ... [2020-10-27 14:56:58,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:58" (1/1) ... [2020-10-27 14:56:58,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:58" (1/1) ... [2020-10-27 14:56:58,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 14:56:58,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 14:56:58,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 14:56:58,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 14:56:58,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:58" (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 14:56:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 14:56:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 14:56:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 14:56:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 14:56:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 14:56:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 14:56:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 14:56:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 14:56:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 14:56:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 14:56:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 14:56:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 14:56:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 14:56:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 14:56:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 14:56:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 14:56:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 14:56:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 14:56:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 14:56:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 14:56:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 14:56:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 14:56:59,173 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 14:56:59,173 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-27 14:56:59,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:56:59 BoogieIcfgContainer [2020-10-27 14:56:59,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 14:56:59,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 14:56:59,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 14:56:59,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 14:56:59,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:56:58" (1/3) ... [2020-10-27 14:56:59,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625e64ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:56:59, skipping insertion in model container [2020-10-27 14:56:59,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:58" (2/3) ... [2020-10-27 14:56:59,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625e64ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:56:59, skipping insertion in model container [2020-10-27 14:56:59,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:56:59" (3/3) ... [2020-10-27 14:56:59,187 INFO L111 eAbstractionObserver]: Analyzing ICFG rewnifrev.c [2020-10-27 14:56:59,202 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 14:56:59,209 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 14:56:59,234 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 14:56:59,289 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 14:56:59,290 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 14:56:59,290 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 14:56:59,290 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 14:56:59,290 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 14:56:59,290 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 14:56:59,291 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 14:56:59,291 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 14:56:59,326 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-27 14:56:59,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 14:56:59,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:56:59,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:56:59,343 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:56:59,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:56:59,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1534732962, now seen corresponding path program 1 times [2020-10-27 14:56:59,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:56:59,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627668538] [2020-10-27 14:56:59,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:56:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:56:59,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:56:59,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:56:59,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 14:56:59,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:56:59,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-27 14:56:59,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:56:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:56:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 14:56:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:56:59,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 14:56:59,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:56:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:56:59,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:56:59,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:56:59,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:56:59,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:56:59,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 14:56:59,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:56:59,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:56:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:56:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:56:59,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 14:57:00,011 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 14:57:00,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627668538] [2020-10-27 14:57:00,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 14:57:00,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 14:57:00,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895497009] [2020-10-27 14:57:00,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 14:57:00,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:00,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 14:57:00,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 14:57:00,052 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2020-10-27 14:57:00,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:00,176 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2020-10-27 14:57:00,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 14:57:00,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-27 14:57:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:00,186 INFO L225 Difference]: With dead ends: 48 [2020-10-27 14:57:00,186 INFO L226 Difference]: Without dead ends: 23 [2020-10-27 14:57:00,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 14:57:00,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-27 14:57:00,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-27 14:57:00,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-27 14:57:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2020-10-27 14:57:00,235 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 15 [2020-10-27 14:57:00,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:00,236 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2020-10-27 14:57:00,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 14:57:00,236 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-10-27 14:57:00,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 14:57:00,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:00,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:00,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 14:57:00,238 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:00,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:00,239 INFO L82 PathProgramCache]: Analyzing trace with hash 353035087, now seen corresponding path program 1 times [2020-10-27 14:57:00,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:00,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624918079] [2020-10-27 14:57:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:00,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:00,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:00,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 14:57:00,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:00,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 14:57:00,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:57:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 14:57:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:00,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:00,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:00,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:00,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:00,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:00,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 14:57:00,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:00,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:00,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:00,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:00,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:00,482 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 14:57:00,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624918079] [2020-10-27 14:57:00,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 14:57:00,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 14:57:00,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120969521] [2020-10-27 14:57:00,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 14:57:00,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:00,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 14:57:00,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 14:57:00,487 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 4 states. [2020-10-27 14:57:00,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:00,607 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2020-10-27 14:57:00,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 14:57:00,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-27 14:57:00,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:00,610 INFO L225 Difference]: With dead ends: 43 [2020-10-27 14:57:00,610 INFO L226 Difference]: Without dead ends: 27 [2020-10-27 14:57:00,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 14:57:00,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-27 14:57:00,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-10-27 14:57:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-27 14:57:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-10-27 14:57:00,623 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 15 [2020-10-27 14:57:00,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:00,623 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-10-27 14:57:00,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 14:57:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-10-27 14:57:00,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 14:57:00,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:00,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:00,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 14:57:00,625 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:00,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:00,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1307166964, now seen corresponding path program 1 times [2020-10-27 14:57:00,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:00,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201195483] [2020-10-27 14:57:00,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:00,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:00,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:00,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:01,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:01,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 14:57:01,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:57:01,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 744 [2020-10-27 14:57:01,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 14:57:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 14:57:01,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 14:57:01,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 14:57:01,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:01,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:01,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:01,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:01,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:01,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 14:57:01,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:01,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 14:57:01,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201195483] [2020-10-27 14:57:01,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 14:57:01,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 14:57:01,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797384459] [2020-10-27 14:57:01,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 14:57:01,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:01,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 14:57:01,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 14:57:01,504 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 5 states. [2020-10-27 14:57:01,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:01,664 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2020-10-27 14:57:01,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 14:57:01,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-27 14:57:01,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:01,668 INFO L225 Difference]: With dead ends: 44 [2020-10-27 14:57:01,668 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 14:57:01,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 14:57:01,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 14:57:01,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2020-10-27 14:57:01,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-27 14:57:01,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-10-27 14:57:01,682 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 19 [2020-10-27 14:57:01,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:01,682 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-10-27 14:57:01,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 14:57:01,682 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-10-27 14:57:01,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-27 14:57:01,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:01,683 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] [2020-10-27 14:57:01,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 14:57:01,684 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:01,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:01,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1246971493, now seen corresponding path program 1 times [2020-10-27 14:57:01,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:01,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90563104] [2020-10-27 14:57:01,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:01,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:01,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:01,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:02,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:02,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:02,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:02,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:02,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:04,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:04,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 14:57:04,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 14:57:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2341 [2020-10-27 14:57:04,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 14:57:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 14:57:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 14:57:04,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:04,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:04,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:04,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:04,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:04,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:04,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 14:57:04,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:04,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 14:57:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 14:57:04,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90563104] [2020-10-27 14:57:04,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 14:57:04,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 14:57:04,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134309543] [2020-10-27 14:57:04,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 14:57:04,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:04,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 14:57:04,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-27 14:57:04,317 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 10 states. [2020-10-27 14:57:04,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:04,775 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2020-10-27 14:57:04,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 14:57:04,775 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-27 14:57:04,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:04,777 INFO L225 Difference]: With dead ends: 41 [2020-10-27 14:57:04,777 INFO L226 Difference]: Without dead ends: 38 [2020-10-27 14:57:04,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-10-27 14:57:04,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-27 14:57:04,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2020-10-27 14:57:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-27 14:57:04,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2020-10-27 14:57:04,787 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2020-10-27 14:57:04,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:04,787 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2020-10-27 14:57:04,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 14:57:04,788 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2020-10-27 14:57:04,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 14:57:04,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:04,790 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:04,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 14:57:04,791 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:04,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:04,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1268347716, now seen corresponding path program 1 times [2020-10-27 14:57:04,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:04,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101383185] [2020-10-27 14:57:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:04,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:04,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:05,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:05,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:05,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:05,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:06,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:06,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 14:57:06,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 14:57:06,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1830 [2020-10-27 14:57:06,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:06,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 14:57:06,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:57:06,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 14:57:06,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:06,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:06,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:06,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:06,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:06,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:06,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:06,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:06,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:06,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 14:57:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:06,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:06,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:06,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:06,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 14:57:06,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:06,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:06,932 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 14:57:06,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101383185] [2020-10-27 14:57:06,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:06,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 14:57:06,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631096319] [2020-10-27 14:57:06,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 14:57:06,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:06,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 14:57:06,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-27 14:57:06,935 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 12 states. [2020-10-27 14:57:07,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:07,671 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2020-10-27 14:57:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 14:57:07,672 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2020-10-27 14:57:07,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:07,674 INFO L225 Difference]: With dead ends: 50 [2020-10-27 14:57:07,674 INFO L226 Difference]: Without dead ends: 47 [2020-10-27 14:57:07,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2020-10-27 14:57:07,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-27 14:57:07,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2020-10-27 14:57:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-27 14:57:07,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2020-10-27 14:57:07,686 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 31 [2020-10-27 14:57:07,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:07,687 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2020-10-27 14:57:07,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 14:57:07,687 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2020-10-27 14:57:07,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-27 14:57:07,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:07,688 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:07,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 14:57:07,689 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:07,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:07,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1964346387, now seen corresponding path program 2 times [2020-10-27 14:57:07,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:07,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108697193] [2020-10-27 14:57:07,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:07,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:07,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:08,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:08,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-27 14:57:08,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:08,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 435 [2020-10-27 14:57:08,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:08,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 14:57:08,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:57:08,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 14:57:08,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:08,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:08,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:08,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:08,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:08,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:08,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:08,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:08,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 14:57:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:08,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:08,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:08,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:08,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:08,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:08,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:08,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:08,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:08,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:08,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:08,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 14:57:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:08,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:08,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:08,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:08,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:08,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:08,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:08,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:08,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:08,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:08,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:08,264 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 14:57:08,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108697193] [2020-10-27 14:57:08,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:08,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 14:57:08,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864375850] [2020-10-27 14:57:08,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 14:57:08,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:08,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 14:57:08,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-27 14:57:08,267 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 9 states. [2020-10-27 14:57:08,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:08,611 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2020-10-27 14:57:08,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 14:57:08,612 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2020-10-27 14:57:08,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:08,616 INFO L225 Difference]: With dead ends: 90 [2020-10-27 14:57:08,616 INFO L226 Difference]: Without dead ends: 54 [2020-10-27 14:57:08,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-27 14:57:08,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-27 14:57:08,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2020-10-27 14:57:08,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-27 14:57:08,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2020-10-27 14:57:08,638 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 39 [2020-10-27 14:57:08,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:08,638 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2020-10-27 14:57:08,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 14:57:08,638 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2020-10-27 14:57:08,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-27 14:57:08,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:08,643 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:08,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 14:57:08,644 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:08,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:08,645 INFO L82 PathProgramCache]: Analyzing trace with hash -238290286, now seen corresponding path program 3 times [2020-10-27 14:57:08,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:08,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073304752] [2020-10-27 14:57:08,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:08,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:08,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:09,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:09,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 14:57:09,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:09,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1102 [2020-10-27 14:57:09,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:09,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 14:57:09,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:57:09,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 14:57:09,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:10,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:10,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:10,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:10,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:10,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:10,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 14:57:10,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:10,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:10,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 14:57:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:10,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:10,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:10,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:10,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 14:57:10,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:10,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:10,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:10,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 14:57:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:10,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:10,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:10,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:10,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:10,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 14:57:10,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:10,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:10,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:10,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:10,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:10,238 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 14:57:10,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073304752] [2020-10-27 14:57:10,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:10,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 14:57:10,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608787297] [2020-10-27 14:57:10,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 14:57:10,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:10,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 14:57:10,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-27 14:57:10,242 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand 14 states. [2020-10-27 14:57:11,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:11,361 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2020-10-27 14:57:11,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 14:57:11,362 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-10-27 14:57:11,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:11,363 INFO L225 Difference]: With dead ends: 62 [2020-10-27 14:57:11,363 INFO L226 Difference]: Without dead ends: 59 [2020-10-27 14:57:11,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2020-10-27 14:57:11,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-27 14:57:11,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 54. [2020-10-27 14:57:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-27 14:57:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-10-27 14:57:11,383 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 43 [2020-10-27 14:57:11,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:11,384 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-10-27 14:57:11,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 14:57:11,384 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-10-27 14:57:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 14:57:11,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:11,385 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:11,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 14:57:11,385 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:11,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:11,386 INFO L82 PathProgramCache]: Analyzing trace with hash 578800955, now seen corresponding path program 4 times [2020-10-27 14:57:11,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:11,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092081464] [2020-10-27 14:57:11,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:11,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:11,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:12,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:12,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-27 14:57:12,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:12,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 613 [2020-10-27 14:57:12,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 14:57:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:57:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 14:57:12,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:12,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:12,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:12,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:12,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:12,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:12,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 14:57:12,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:12,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:12,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:12,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:12,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:12,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 14:57:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:12,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:12,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:12,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:12,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:12,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:12,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:12,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:12,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:12,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:12,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:12,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 14:57:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:12,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:12,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:12,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:12,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:12,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:12,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:12,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:12,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 14:57:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:12,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:12,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:12,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:12,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:12,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:12,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:12,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:12,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:12,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:12,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 14:57:12,185 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 14:57:12,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092081464] [2020-10-27 14:57:12,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:12,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 14:57:12,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664948275] [2020-10-27 14:57:12,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 14:57:12,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:12,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 14:57:12,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-27 14:57:12,189 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand 9 states. [2020-10-27 14:57:12,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:12,527 INFO L93 Difference]: Finished difference Result 110 states and 116 transitions. [2020-10-27 14:57:12,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 14:57:12,527 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-10-27 14:57:12,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:12,529 INFO L225 Difference]: With dead ends: 110 [2020-10-27 14:57:12,529 INFO L226 Difference]: Without dead ends: 66 [2020-10-27 14:57:12,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-27 14:57:12,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-27 14:57:12,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 58. [2020-10-27 14:57:12,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-27 14:57:12,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-10-27 14:57:12,554 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 51 [2020-10-27 14:57:12,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:12,554 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-10-27 14:57:12,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 14:57:12,554 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-10-27 14:57:12,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-27 14:57:12,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:12,560 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:12,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 14:57:12,560 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:12,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:12,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1883536288, now seen corresponding path program 5 times [2020-10-27 14:57:12,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:12,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957056801] [2020-10-27 14:57:12,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:12,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:13,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:14,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:14,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 14:57:14,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:14,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1689 [2020-10-27 14:57:14,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:14,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 14:57:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:57:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 14:57:14,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:14,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:14,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:14,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:14,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:14,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:14,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:14,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 14:57:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:14,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:14,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:14,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:14,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:14,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:14,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:14,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:14,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:14,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:14,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:14,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 14:57:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:14,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:14,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:14,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:14,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:14,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:14,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:14,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:14,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 14:57:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:14,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:14,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:14,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:14,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:14,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:14,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:14,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:14,737 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 14:57:14,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957056801] [2020-10-27 14:57:14,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:14,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 14:57:14,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138501331] [2020-10-27 14:57:14,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 14:57:14,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:14,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 14:57:14,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-27 14:57:14,747 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 15 states. [2020-10-27 14:57:16,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:16,075 INFO L93 Difference]: Finished difference Result 74 states and 77 transitions. [2020-10-27 14:57:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 14:57:16,076 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2020-10-27 14:57:16,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:16,079 INFO L225 Difference]: With dead ends: 74 [2020-10-27 14:57:16,080 INFO L226 Difference]: Without dead ends: 71 [2020-10-27 14:57:16,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 12 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=204, Invalid=986, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 14:57:16,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-27 14:57:16,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2020-10-27 14:57:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-27 14:57:16,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2020-10-27 14:57:16,103 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 55 [2020-10-27 14:57:16,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:16,103 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2020-10-27 14:57:16,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 14:57:16,103 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2020-10-27 14:57:16,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-27 14:57:16,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:16,106 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:16,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 14:57:16,107 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:16,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:16,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1340582153, now seen corresponding path program 6 times [2020-10-27 14:57:16,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:16,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016336018] [2020-10-27 14:57:16,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:16,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:16,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:17,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:17,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 14:57:17,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:17,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-10-27 14:57:17,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 14:57:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:57:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 14:57:17,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:17,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:17,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:17,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:17,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:17,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:17,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 14:57:17,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:17,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 14:57:17,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 14:57:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:17,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:17,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:17,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:17,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:17,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:17,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:17,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:17,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:17,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:17,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:17,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 14:57:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:17,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:17,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:17,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:17,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:17,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:17,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:17,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:17,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:17,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:17,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:17,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 14:57:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:17,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:17,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:17,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:17,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:17,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:17,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:17,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:17,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:17,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:17,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:17,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 14:57:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:17,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:17,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:17,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:17,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:17,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:17,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:17,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:17,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:17,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:17,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:17,379 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 27 proven. 41 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-27 14:57:17,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2016336018] [2020-10-27 14:57:17,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:17,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 14:57:17,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816578305] [2020-10-27 14:57:17,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 14:57:17,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:17,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 14:57:17,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-27 14:57:17,382 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand 11 states. [2020-10-27 14:57:17,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:17,830 INFO L93 Difference]: Finished difference Result 130 states and 136 transitions. [2020-10-27 14:57:17,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 14:57:17,831 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-10-27 14:57:17,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:17,833 INFO L225 Difference]: With dead ends: 130 [2020-10-27 14:57:17,833 INFO L226 Difference]: Without dead ends: 78 [2020-10-27 14:57:17,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2020-10-27 14:57:17,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-27 14:57:17,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 70. [2020-10-27 14:57:17,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-27 14:57:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2020-10-27 14:57:17,864 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 63 [2020-10-27 14:57:17,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:17,864 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2020-10-27 14:57:17,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 14:57:17,865 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2020-10-27 14:57:17,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-27 14:57:17,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:17,870 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:17,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 14:57:17,870 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:17,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:17,871 INFO L82 PathProgramCache]: Analyzing trace with hash -549924690, now seen corresponding path program 7 times [2020-10-27 14:57:17,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:17,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229791604] [2020-10-27 14:57:17,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:17,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:18,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:20,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:20,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 14:57:20,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:20,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2705 [2020-10-27 14:57:20,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:20,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 14:57:20,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:57:20,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 14:57:20,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:21,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:21,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:21,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:21,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:21,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:21,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:21,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:21,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:21,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:21,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:21,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:21,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 14:57:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:21,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:21,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:21,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:21,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:21,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:21,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:21,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:21,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:21,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:21,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:21,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 14:57:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:21,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:21,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:21,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:21,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:21,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:21,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:21,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:21,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:21,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:21,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-27 14:57:21,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 14:57:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:21,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:21,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:21,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:21,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:21,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:21,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:21,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 14:57:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:21,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:21,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:21,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:21,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:21,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:21,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:21,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:21,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:21,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:21,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:21,156 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 21 proven. 64 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-27 14:57:21,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229791604] [2020-10-27 14:57:21,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:21,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 14:57:21,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377422308] [2020-10-27 14:57:21,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 14:57:21,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:21,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 14:57:21,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-27 14:57:21,161 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand 16 states. [2020-10-27 14:57:23,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:23,021 INFO L93 Difference]: Finished difference Result 86 states and 89 transitions. [2020-10-27 14:57:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 14:57:23,021 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 67 [2020-10-27 14:57:23,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:23,023 INFO L225 Difference]: With dead ends: 86 [2020-10-27 14:57:23,026 INFO L226 Difference]: Without dead ends: 83 [2020-10-27 14:57:23,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 15 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=265, Invalid=1295, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 14:57:23,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-27 14:57:23,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2020-10-27 14:57:23,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-27 14:57:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions. [2020-10-27 14:57:23,052 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 67 [2020-10-27 14:57:23,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:23,053 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions. [2020-10-27 14:57:23,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 14:57:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2020-10-27 14:57:23,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 14:57:23,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:23,058 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:23,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 14:57:23,059 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:23,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:23,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1345505111, now seen corresponding path program 8 times [2020-10-27 14:57:23,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:23,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901044873] [2020-10-27 14:57:23,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:23,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:23,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:24,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:24,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-27 14:57:24,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:24,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1282 [2020-10-27 14:57:24,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 14:57:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:57:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 14:57:24,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:24,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:24,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:24,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:24,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:24,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:24,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:24,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:24,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:24,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 14:57:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:24,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:24,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:24,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:24,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:24,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:24,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:24,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:24,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:24,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:24,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:24,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 14:57:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:24,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:24,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:24,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:24,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:24,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:24,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:24,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:24,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:24,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 14:57:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:24,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:24,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:24,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:24,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:24,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:24,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:24,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 14:57:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:24,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:24,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:24,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:24,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:24,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:24,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:24,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:24,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:24,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:24,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:24,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 14:57:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:24,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:24,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:24,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:24,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:24,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:24,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:24,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 43 proven. 62 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 14:57:24,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901044873] [2020-10-27 14:57:24,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:24,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 14:57:24,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541459184] [2020-10-27 14:57:24,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 14:57:24,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:24,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 14:57:24,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-27 14:57:24,570 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand 12 states. [2020-10-27 14:57:25,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:25,063 INFO L93 Difference]: Finished difference Result 150 states and 156 transitions. [2020-10-27 14:57:25,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 14:57:25,064 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 75 [2020-10-27 14:57:25,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:25,065 INFO L225 Difference]: With dead ends: 150 [2020-10-27 14:57:25,065 INFO L226 Difference]: Without dead ends: 90 [2020-10-27 14:57:25,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-27 14:57:25,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-27 14:57:25,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2020-10-27 14:57:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-27 14:57:25,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 84 transitions. [2020-10-27 14:57:25,089 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 84 transitions. Word has length 75 [2020-10-27 14:57:25,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:25,089 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 84 transitions. [2020-10-27 14:57:25,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 14:57:25,089 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2020-10-27 14:57:25,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-27 14:57:25,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:25,091 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:25,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 14:57:25,091 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:25,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:25,092 INFO L82 PathProgramCache]: Analyzing trace with hash 510959484, now seen corresponding path program 9 times [2020-10-27 14:57:25,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:25,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603417917] [2020-10-27 14:57:25,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:25,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:25,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:28,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:28,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 14:57:28,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:28,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3176 [2020-10-27 14:57:28,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:28,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 14:57:28,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:57:28,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 14:57:28,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:28,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:28,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:28,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:28,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:28,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 14:57:28,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:28,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:28,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 14:57:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:28,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:28,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:28,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:28,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:28,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:28,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:28,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:28,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:28,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:28,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 14:57:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:28,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:28,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:28,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:28,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:28,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:28,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:28,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:28,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 14:57:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:28,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:28,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:28,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:28,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:28,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:28,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:28,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:28,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 14:57:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:28,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:28,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:28,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:28,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:28,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:28,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:28,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:28,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:28,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:28,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:28,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 14:57:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:28,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:28,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:28,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:28,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:28,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:28,984 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 26 proven. 100 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 14:57:28,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603417917] [2020-10-27 14:57:28,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:28,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 14:57:28,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049639461] [2020-10-27 14:57:28,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 14:57:28,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:28,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 14:57:28,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2020-10-27 14:57:28,989 INFO L87 Difference]: Start difference. First operand 82 states and 84 transitions. Second operand 17 states. [2020-10-27 14:57:31,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:31,297 INFO L93 Difference]: Finished difference Result 98 states and 101 transitions. [2020-10-27 14:57:31,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 14:57:31,297 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79 [2020-10-27 14:57:31,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:31,299 INFO L225 Difference]: With dead ends: 98 [2020-10-27 14:57:31,299 INFO L226 Difference]: Without dead ends: 95 [2020-10-27 14:57:31,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 18 SyntacticMatches, 11 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=340, Invalid=1730, Unknown=0, NotChecked=0, Total=2070 [2020-10-27 14:57:31,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-27 14:57:31,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 90. [2020-10-27 14:57:31,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-27 14:57:31,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 92 transitions. [2020-10-27 14:57:31,312 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 92 transitions. Word has length 79 [2020-10-27 14:57:31,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:31,313 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 92 transitions. [2020-10-27 14:57:31,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 14:57:31,313 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 92 transitions. [2020-10-27 14:57:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-27 14:57:31,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:31,314 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:31,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 14:57:31,314 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:31,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:31,315 INFO L82 PathProgramCache]: Analyzing trace with hash -2066618331, now seen corresponding path program 10 times [2020-10-27 14:57:31,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:31,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279250753] [2020-10-27 14:57:31,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:31,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:31,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:32,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:32,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 14:57:32,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:32,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1394 [2020-10-27 14:57:32,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:32,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 14:57:32,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:57:32,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 14:57:32,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:32,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:32,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:32,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:32,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:32,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:32,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:32,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:32,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:32,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:32,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 14:57:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:32,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:32,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:32,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:32,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:32,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:32,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 14:57:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:32,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:32,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:32,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:32,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:32,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:32,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:32,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:32,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:32,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:32,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:32,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 14:57:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:32,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:32,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:32,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:32,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:32,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:32,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:32,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:32,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 14:57:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:32,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:32,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:32,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:32,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:32,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:32,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:32,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:32,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:32,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:32,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 14:57:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:32,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:32,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:32,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:32,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:32,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:32,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:32,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:32,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:32,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:32,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:32,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 14:57:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:32,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:32,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:32,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:32,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:32,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:57:32,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:32,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:32,936 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 84 proven. 66 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-27 14:57:32,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279250753] [2020-10-27 14:57:32,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:32,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 14:57:32,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30227318] [2020-10-27 14:57:32,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 14:57:32,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:32,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 14:57:32,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-27 14:57:32,939 INFO L87 Difference]: Start difference. First operand 90 states and 92 transitions. Second operand 12 states. [2020-10-27 14:57:33,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:33,570 INFO L93 Difference]: Finished difference Result 170 states and 176 transitions. [2020-10-27 14:57:33,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 14:57:33,571 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2020-10-27 14:57:33,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:33,573 INFO L225 Difference]: With dead ends: 170 [2020-10-27 14:57:33,573 INFO L226 Difference]: Without dead ends: 102 [2020-10-27 14:57:33,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2020-10-27 14:57:33,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-27 14:57:33,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 94. [2020-10-27 14:57:33,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-27 14:57:33,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 96 transitions. [2020-10-27 14:57:33,590 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 96 transitions. Word has length 87 [2020-10-27 14:57:33,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:33,591 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 96 transitions. [2020-10-27 14:57:33,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 14:57:33,591 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 96 transitions. [2020-10-27 14:57:33,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-27 14:57:33,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:33,592 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:33,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 14:57:33,592 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:33,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:33,593 INFO L82 PathProgramCache]: Analyzing trace with hash -20278, now seen corresponding path program 11 times [2020-10-27 14:57:33,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:33,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305880663] [2020-10-27 14:57:33,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:33,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:33,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:36,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:36,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 14:57:36,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:36,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3308 [2020-10-27 14:57:36,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 14:57:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:57:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-27 14:57:36,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:37,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:37,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:37,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:37,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:37,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:37,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:37,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:37,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:37,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 14:57:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:37,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:37,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:37,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:37,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:37,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:37,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:37,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:37,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:37,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:37,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:37,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 14:57:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:37,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:37,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:37,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:37,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:37,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:37,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:37,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:37,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 14:57:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:37,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:37,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:37,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:37,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:37,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:37,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:37,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:37,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:37,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 14:57:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:37,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:37,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:37,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:37,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:37,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:37,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:37,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:37,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 14:57:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:37,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:37,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:37,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:37,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:37,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:37,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:37,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:37,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:37,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 14:57:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:37,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:37,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:37,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:37,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:37,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:37,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:37,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:37,760 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 31 proven. 144 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-27 14:57:37,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305880663] [2020-10-27 14:57:37,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:37,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 14:57:37,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007474390] [2020-10-27 14:57:37,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 14:57:37,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:37,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 14:57:37,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2020-10-27 14:57:37,763 INFO L87 Difference]: Start difference. First operand 94 states and 96 transitions. Second operand 18 states. [2020-10-27 14:57:40,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:40,715 INFO L93 Difference]: Finished difference Result 110 states and 113 transitions. [2020-10-27 14:57:40,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-27 14:57:40,715 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 91 [2020-10-27 14:57:40,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:40,718 INFO L225 Difference]: With dead ends: 110 [2020-10-27 14:57:40,718 INFO L226 Difference]: Without dead ends: 107 [2020-10-27 14:57:40,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 21 SyntacticMatches, 14 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=414, Invalid=2036, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 14:57:40,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-27 14:57:40,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 102. [2020-10-27 14:57:40,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-27 14:57:40,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 104 transitions. [2020-10-27 14:57:40,732 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 104 transitions. Word has length 91 [2020-10-27 14:57:40,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:40,732 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 104 transitions. [2020-10-27 14:57:40,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 14:57:40,732 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 104 transitions. [2020-10-27 14:57:40,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 14:57:40,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:40,734 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:40,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 14:57:40,734 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:40,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:40,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1670761331, now seen corresponding path program 12 times [2020-10-27 14:57:40,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:40,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919222921] [2020-10-27 14:57:40,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:40,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:40,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:42,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:42,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 14:57:42,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:42,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1913 [2020-10-27 14:57:42,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:42,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 14:57:42,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:57:42,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 14:57:42,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:42,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:42,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:42,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:42,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:42,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:42,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 14:57:42,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:42,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:42,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:42,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:42,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 14:57:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:42,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:42,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:42,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:42,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:42,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:42,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:42,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:42,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 14:57:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:42,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:42,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:42,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:42,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:42,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:57:42,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:42,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:42,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:42,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:42,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:42,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 14:57:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:42,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:42,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:42,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:42,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:42,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:57:42,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:42,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:42,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 14:57:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:42,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:42,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:42,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:42,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:42,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:42,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:42,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:42,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:42,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 14:57:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:42,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:42,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:42,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:42,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:42,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:57:42,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:42,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:42,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:42,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:42,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:42,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 14:57:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:42,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:42,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:42,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:42,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:42,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:57:42,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:42,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:42,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:42,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:42,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:42,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 14:57:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:42,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:42,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:42,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:42,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:42,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:57:42,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:42,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:42,899 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 112 proven. 91 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-27 14:57:42,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919222921] [2020-10-27 14:57:42,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:42,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 14:57:42,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923004938] [2020-10-27 14:57:42,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 14:57:42,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:42,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 14:57:42,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-27 14:57:42,906 INFO L87 Difference]: Start difference. First operand 102 states and 104 transitions. Second operand 12 states. [2020-10-27 14:57:43,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:43,520 INFO L93 Difference]: Finished difference Result 184 states and 189 transitions. [2020-10-27 14:57:43,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 14:57:43,522 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-10-27 14:57:43,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:43,526 INFO L225 Difference]: With dead ends: 184 [2020-10-27 14:57:43,526 INFO L226 Difference]: Without dead ends: 108 [2020-10-27 14:57:43,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2020-10-27 14:57:43,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-27 14:57:43,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2020-10-27 14:57:43,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-27 14:57:43,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 108 transitions. [2020-10-27 14:57:43,544 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 108 transitions. Word has length 99 [2020-10-27 14:57:43,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:43,544 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 108 transitions. [2020-10-27 14:57:43,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 14:57:43,544 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 108 transitions. [2020-10-27 14:57:43,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-27 14:57:43,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:43,547 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:43,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 14:57:43,548 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:43,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:43,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1697987432, now seen corresponding path program 13 times [2020-10-27 14:57:43,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:43,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091159785] [2020-10-27 14:57:43,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:43,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:44,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:47,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:47,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 14:57:47,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:47,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4160 [2020-10-27 14:57:47,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 14:57:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:57:47,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-27 14:57:47,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:48,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:48,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:48,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:48,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:48,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:48,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:48,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:48,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:48,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 14:57:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:48,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:48,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:48,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:48,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:48,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:48,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:48,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:48,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:48,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:48,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:48,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 14:57:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:48,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:48,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:48,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:48,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:48,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:48,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:48,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:48,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 14:57:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:48,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:48,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:48,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:48,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:48,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:48,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:48,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:48,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:48,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:48,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:48,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 14:57:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:48,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:48,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:48,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:48,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:48,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:48,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:48,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:48,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:48,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:48,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 14:57:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:48,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:48,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:48,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:48,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:48,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 14:57:48,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:48,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:48,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:48,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 14:57:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:48,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:48,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:48,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:48,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:48,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 14:57:48,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:48,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:48,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:48,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:48,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:48,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 14:57:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:48,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:48,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:48,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:48,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:48,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:57:48,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:48,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:48,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:48,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:48,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 36 proven. 196 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-27 14:57:48,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091159785] [2020-10-27 14:57:48,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:48,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 14:57:48,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846569298] [2020-10-27 14:57:48,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 14:57:48,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:48,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 14:57:48,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2020-10-27 14:57:48,778 INFO L87 Difference]: Start difference. First operand 106 states and 108 transitions. Second operand 19 states. [2020-10-27 14:57:52,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:52,520 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2020-10-27 14:57:52,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-27 14:57:52,522 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 103 [2020-10-27 14:57:52,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:52,524 INFO L225 Difference]: With dead ends: 122 [2020-10-27 14:57:52,524 INFO L226 Difference]: Without dead ends: 119 [2020-10-27 14:57:52,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 24 SyntacticMatches, 17 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=507, Invalid=2573, Unknown=0, NotChecked=0, Total=3080 [2020-10-27 14:57:52,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-27 14:57:52,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2020-10-27 14:57:52,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-27 14:57:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 116 transitions. [2020-10-27 14:57:52,545 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 116 transitions. Word has length 103 [2020-10-27 14:57:52,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:52,545 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 116 transitions. [2020-10-27 14:57:52,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 14:57:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 116 transitions. [2020-10-27 14:57:52,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 14:57:52,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:52,547 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:52,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 14:57:52,547 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:52,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:52,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1722757441, now seen corresponding path program 14 times [2020-10-27 14:57:52,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:52,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618405575] [2020-10-27 14:57:52,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:52,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:52,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:54,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:54,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 14:57:54,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:57:54,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2077 [2020-10-27 14:57:54,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:54,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 14:57:54,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:57:54,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 14:57:54,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:54,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:57:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:54,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:54,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:54,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:57:54,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:54,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:57:54,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:57:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:57:54,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:54,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 14:57:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:54,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:54,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:54,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:54,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:54,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:54,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:54,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:54,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:54,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:54,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:54,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 14:57:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:54,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:54,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:54,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:54,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:54,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:54,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:54,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:54,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:54,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:54,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:54,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 14:57:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:54,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:54,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:54,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:54,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:54,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:54,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:54,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:54,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:54,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:54,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:54,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 14:57:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:54,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:54,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:54,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:54,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:54,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:54,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:54,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:54,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 14:57:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:54,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:54,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:54,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:54,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:54,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:54,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:54,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:54,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:54,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:54,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:54,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 14:57:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:54,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:54,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:54,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:54,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:54,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:54,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:54,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:54,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 14:57:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:54,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:54,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:54,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:54,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:54,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:57:54,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:54,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:54,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:54,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 14:57:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:54,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:54,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:57:54,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:57:54,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:57:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:57:54,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:57:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:57:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:57:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:57:54,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:57:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 115 proven. 149 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-27 14:57:54,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618405575] [2020-10-27 14:57:54,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:57:54,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 14:57:54,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533619846] [2020-10-27 14:57:54,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 14:57:54,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:57:54,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 14:57:54,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-10-27 14:57:54,973 INFO L87 Difference]: Start difference. First operand 114 states and 116 transitions. Second operand 15 states. [2020-10-27 14:57:55,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:57:55,824 INFO L93 Difference]: Finished difference Result 210 states and 216 transitions. [2020-10-27 14:57:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 14:57:55,825 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 111 [2020-10-27 14:57:55,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:57:55,826 INFO L225 Difference]: With dead ends: 210 [2020-10-27 14:57:55,826 INFO L226 Difference]: Without dead ends: 126 [2020-10-27 14:57:55,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2020-10-27 14:57:55,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-27 14:57:55,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 118. [2020-10-27 14:57:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-27 14:57:55,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2020-10-27 14:57:55,842 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 111 [2020-10-27 14:57:55,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:57:55,843 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2020-10-27 14:57:55,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 14:57:55,843 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2020-10-27 14:57:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-27 14:57:55,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:57:55,844 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:57:55,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 14:57:55,845 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:57:55,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:57:55,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1512479462, now seen corresponding path program 15 times [2020-10-27 14:57:55,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:57:55,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011623048] [2020-10-27 14:57:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:57:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:57:55,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:57:56,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:00,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:00,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-27 14:58:00,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:58:00,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4905 [2020-10-27 14:58:00,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:00,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 14:58:00,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:58:00,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-27 14:58:00,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:01,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:58:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:01,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:01,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:01,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:58:01,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:01,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:58:01,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:58:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:58:01,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:01,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 14:58:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:01,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:01,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:01,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:01,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:01,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:01,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:01,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:01,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:01,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:01,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:01,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 14:58:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:01,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:01,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:01,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:01,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:01,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:58:01,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:01,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:01,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:01,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:01,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:01,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 14:58:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:01,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:01,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:01,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:01,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:01,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:01,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:01,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:01,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 14:58:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:01,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:01,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:01,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:01,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:01,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:01,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:01,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:01,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:01,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:01,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:01,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 14:58:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:01,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:01,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:01,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:01,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:01,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:01,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:01,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:01,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 14:58:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:01,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:01,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:01,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:01,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:01,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:01,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:01,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:01,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 14:58:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:01,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:01,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:01,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:01,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:01,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:01,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:01,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:01,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 14:58:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:01,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:01,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:01,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:01,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:01,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:01,952 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 41 proven. 256 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-27 14:58:01,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011623048] [2020-10-27 14:58:01,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:58:01,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 14:58:01,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13212329] [2020-10-27 14:58:01,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 14:58:01,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:58:01,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 14:58:01,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-10-27 14:58:01,955 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand 20 states. [2020-10-27 14:58:04,536 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-27 14:58:04,900 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2020-10-27 14:58:05,090 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-27 14:58:06,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:58:06,774 INFO L93 Difference]: Finished difference Result 134 states and 137 transitions. [2020-10-27 14:58:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-27 14:58:06,775 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 115 [2020-10-27 14:58:06,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:58:06,778 INFO L225 Difference]: With dead ends: 134 [2020-10-27 14:58:06,778 INFO L226 Difference]: Without dead ends: 131 [2020-10-27 14:58:06,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 28 SyntacticMatches, 21 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=655, Invalid=3005, Unknown=0, NotChecked=0, Total=3660 [2020-10-27 14:58:06,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-27 14:58:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 126. [2020-10-27 14:58:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-27 14:58:06,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 128 transitions. [2020-10-27 14:58:06,803 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 128 transitions. Word has length 115 [2020-10-27 14:58:06,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:58:06,804 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 128 transitions. [2020-10-27 14:58:06,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 14:58:06,804 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 128 transitions. [2020-10-27 14:58:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-27 14:58:06,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:58:06,807 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:58:06,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 14:58:06,807 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:58:06,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:58:06,808 INFO L82 PathProgramCache]: Analyzing trace with hash -55649905, now seen corresponding path program 16 times [2020-10-27 14:58:06,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:58:06,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903649483] [2020-10-27 14:58:06,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:58:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:06,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:07,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:09,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:09,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-27 14:58:09,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:58:09,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2271 [2020-10-27 14:58:09,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:09,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 14:58:09,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:58:09,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-27 14:58:09,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:09,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:58:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:09,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:09,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:09,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:58:09,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:09,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:09,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:58:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:58:09,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:09,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 14:58:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:09,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:09,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:09,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:09,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:09,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:09,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:09,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:09,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:09,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:09,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:09,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 14:58:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:09,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:09,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:09,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:09,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:09,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:09,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:09,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:09,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 14:58:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:09,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:09,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:09,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:09,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:09,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:09,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:09,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:09,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:09,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 14:58:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:09,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:09,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:09,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:09,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:09,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:58:09,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:09,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:09,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:09,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:09,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:09,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 14:58:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:09,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:09,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:09,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:09,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:09,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:09,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:09,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:09,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 14:58:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:09,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:09,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:09,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:09,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:09,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:09,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:09,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 14:58:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:09,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:09,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:09,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:09,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:09,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:09,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:09,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:09,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:09,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:09,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:09,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 14:58:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:09,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:09,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:09,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:09,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:09,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:09,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:09,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:09,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 14:58:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:09,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:09,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:09,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:09,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:09,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:09,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:09,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:09,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 180 proven. 153 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-27 14:58:09,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903649483] [2020-10-27 14:58:09,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:58:09,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 14:58:09,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362062441] [2020-10-27 14:58:09,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 14:58:09,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:58:09,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 14:58:09,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2020-10-27 14:58:09,444 INFO L87 Difference]: Start difference. First operand 126 states and 128 transitions. Second operand 15 states. [2020-10-27 14:58:10,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:58:10,311 INFO L93 Difference]: Finished difference Result 230 states and 236 transitions. [2020-10-27 14:58:10,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 14:58:10,311 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 123 [2020-10-27 14:58:10,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:58:10,313 INFO L225 Difference]: With dead ends: 230 [2020-10-27 14:58:10,314 INFO L226 Difference]: Without dead ends: 138 [2020-10-27 14:58:10,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=240, Invalid=462, Unknown=0, NotChecked=0, Total=702 [2020-10-27 14:58:10,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-27 14:58:10,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 130. [2020-10-27 14:58:10,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-27 14:58:10,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 132 transitions. [2020-10-27 14:58:10,328 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 132 transitions. Word has length 123 [2020-10-27 14:58:10,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:58:10,328 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 132 transitions. [2020-10-27 14:58:10,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 14:58:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 132 transitions. [2020-10-27 14:58:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-27 14:58:10,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:58:10,330 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:58:10,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 14:58:10,330 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:58:10,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:58:10,330 INFO L82 PathProgramCache]: Analyzing trace with hash -305925196, now seen corresponding path program 17 times [2020-10-27 14:58:10,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:58:10,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178953956] [2020-10-27 14:58:10,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:58:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:10,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:10,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:14,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:14,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-27 14:58:14,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:58:14,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4415 [2020-10-27 14:58:14,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:14,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 14:58:14,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:58:14,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-27 14:58:14,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:15,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:58:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:15,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:15,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:15,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:58:15,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:15,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:15,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:15,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:58:15,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:15,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:58:15,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:15,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 14:58:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:15,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:15,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:15,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:15,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:15,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:15,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:15,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:15,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:15,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:15,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:15,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 14:58:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:15,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:15,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:15,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:15,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:15,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:15,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:15,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:15,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:15,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:15,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:15,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 14:58:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:15,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:15,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:15,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:15,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:15,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:15,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:15,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:15,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:15,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:15,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:15,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 14:58:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:15,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:15,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:15,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:15,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:15,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:15,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:15,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:15,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 14:58:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:15,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:15,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:15,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:15,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:15,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:15,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:15,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:15,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:15,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:15,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:15,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 14:58:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:15,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:15,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:15,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:15,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:15,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:15,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:15,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:15,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:15,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:15,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:15,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 14:58:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:15,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:15,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:15,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:15,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:15,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:15,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:15,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:15,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 14:58:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:15,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:15,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:15,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:15,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:15,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:15,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:15,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:15,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 14:58:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:15,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:15,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:15,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:15,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:15,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:15,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:15,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:16,038 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 46 proven. 324 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-27 14:58:16,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178953956] [2020-10-27 14:58:16,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:58:16,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-27 14:58:16,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037194227] [2020-10-27 14:58:16,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 14:58:16,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:58:16,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 14:58:16,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2020-10-27 14:58:16,040 INFO L87 Difference]: Start difference. First operand 130 states and 132 transitions. Second operand 21 states. [2020-10-27 14:58:18,848 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-27 14:58:19,044 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-27 14:58:19,257 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-10-27 14:58:21,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:58:21,330 INFO L93 Difference]: Finished difference Result 146 states and 149 transitions. [2020-10-27 14:58:21,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-27 14:58:21,331 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 127 [2020-10-27 14:58:21,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:58:21,333 INFO L225 Difference]: With dead ends: 146 [2020-10-27 14:58:21,333 INFO L226 Difference]: Without dead ends: 143 [2020-10-27 14:58:21,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 30 SyntacticMatches, 23 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=705, Invalid=3455, Unknown=0, NotChecked=0, Total=4160 [2020-10-27 14:58:21,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-27 14:58:21,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 138. [2020-10-27 14:58:21,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-27 14:58:21,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 140 transitions. [2020-10-27 14:58:21,355 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 140 transitions. Word has length 127 [2020-10-27 14:58:21,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:58:21,355 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 140 transitions. [2020-10-27 14:58:21,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 14:58:21,355 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 140 transitions. [2020-10-27 14:58:21,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-27 14:58:21,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:58:21,357 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:58:21,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 14:58:21,358 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:58:21,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:58:21,359 INFO L82 PathProgramCache]: Analyzing trace with hash 2022016093, now seen corresponding path program 18 times [2020-10-27 14:58:21,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:58:21,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187046531] [2020-10-27 14:58:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:58:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:21,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:21,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-27 14:58:23,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:58:23,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1964 [2020-10-27 14:58:23,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 14:58:23,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:58:23,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-27 14:58:23,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:58:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:23,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:58:23,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:23,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:58:23,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:58:23,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:23,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:58:23,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 14:58:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:23,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:23,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:23,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:23,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:23,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:23,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:23,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 14:58:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:23,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:23,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:23,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:23,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:23,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:23,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 14:58:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:23,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:23,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:23,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:23,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:23,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:23,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:23,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 14:58:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:23,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:23,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:23,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:23,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:23,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 14:58:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:23,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:23,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:23,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:23,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:23,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 14:58:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:23,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:23,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:23,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:23,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:23,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:23,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:23,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 14:58:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:23,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:23,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:23,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:58:23,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:23,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 14:58:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:23,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:23,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:23,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:23,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:23,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:23,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:23,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 14:58:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:23,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:23,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:23,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:23,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:23,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 14:58:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:23,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:23,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:23,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:23,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:23,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:23,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:23,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 220 proven. 190 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-27 14:58:23,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187046531] [2020-10-27 14:58:23,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:58:23,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 14:58:23,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103261343] [2020-10-27 14:58:23,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 14:58:23,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:58:23,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 14:58:23,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2020-10-27 14:58:23,778 INFO L87 Difference]: Start difference. First operand 138 states and 140 transitions. Second operand 15 states. [2020-10-27 14:58:24,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:58:24,997 INFO L93 Difference]: Finished difference Result 244 states and 249 transitions. [2020-10-27 14:58:24,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 14:58:24,999 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 135 [2020-10-27 14:58:25,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:58:25,001 INFO L225 Difference]: With dead ends: 244 [2020-10-27 14:58:25,001 INFO L226 Difference]: Without dead ends: 144 [2020-10-27 14:58:25,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=240, Invalid=462, Unknown=0, NotChecked=0, Total=702 [2020-10-27 14:58:25,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-27 14:58:25,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-10-27 14:58:25,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-27 14:58:25,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 144 transitions. [2020-10-27 14:58:25,020 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 144 transitions. Word has length 135 [2020-10-27 14:58:25,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:58:25,021 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 144 transitions. [2020-10-27 14:58:25,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 14:58:25,021 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 144 transitions. [2020-10-27 14:58:25,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-27 14:58:25,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:58:25,023 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:58:25,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 14:58:25,023 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:58:25,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:58:25,024 INFO L82 PathProgramCache]: Analyzing trace with hash 968068866, now seen corresponding path program 19 times [2020-10-27 14:58:25,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:58:25,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161501557] [2020-10-27 14:58:25,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:58:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:25,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:25,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:30,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:30,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 14:58:30,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:58:30,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-27 14:58:30,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:30,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 14:58:30,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:58:30,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-27 14:58:30,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:58:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:31,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:31,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:31,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:58:31,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:31,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:58:31,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:31,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:58:31,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:31,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:58:31,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 14:58:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:31,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:31,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:31,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:31,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:31,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:31,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:31,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 14:58:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:31,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:31,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:31,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:31,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:31,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 14:58:31,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:31,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:31,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:31,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:31,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 14:58:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:31,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:31,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:31,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:31,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:31,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:31,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:31,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:31,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:31,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:31,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 14:58:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:31,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:31,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:31,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:31,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:31,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:31,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:31,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:31,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:31,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:31,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 14:58:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:31,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:31,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:31,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:31,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:31,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:31,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:31,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 14:58:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:31,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:31,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:31,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:31,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:31,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:31,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:31,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:31,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:31,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:31,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 14:58:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:31,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:31,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:31,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:31,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:31,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:31,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:31,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:31,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:31,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:31,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 14:58:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:31,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:31,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:31,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:31,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:31,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:31,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:31,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:31,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:31,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:31,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 14:58:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:31,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:31,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:31,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:31,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:31,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:31,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:31,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:31,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:31,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:31,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 14:58:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:31,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:31,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:31,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:31,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:31,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:31,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:31,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:31,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 51 proven. 400 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-27 14:58:31,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161501557] [2020-10-27 14:58:31,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:58:31,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-27 14:58:31,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11543204] [2020-10-27 14:58:31,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 14:58:31,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:58:31,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 14:58:31,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2020-10-27 14:58:31,650 INFO L87 Difference]: Start difference. First operand 142 states and 144 transitions. Second operand 22 states. [2020-10-27 14:58:34,618 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-27 14:58:34,850 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-10-27 14:58:35,068 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2020-10-27 14:58:35,328 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2020-10-27 14:58:35,547 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-10-27 14:58:35,788 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-27 14:58:36,063 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-10-27 14:58:38,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:58:38,626 INFO L93 Difference]: Finished difference Result 158 states and 161 transitions. [2020-10-27 14:58:38,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-27 14:58:38,627 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 139 [2020-10-27 14:58:38,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:58:38,629 INFO L225 Difference]: With dead ends: 158 [2020-10-27 14:58:38,629 INFO L226 Difference]: Without dead ends: 155 [2020-10-27 14:58:38,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 33 SyntacticMatches, 26 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=825, Invalid=4145, Unknown=0, NotChecked=0, Total=4970 [2020-10-27 14:58:38,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-10-27 14:58:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 150. [2020-10-27 14:58:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-27 14:58:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 152 transitions. [2020-10-27 14:58:38,656 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 152 transitions. Word has length 139 [2020-10-27 14:58:38,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:58:38,656 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 152 transitions. [2020-10-27 14:58:38,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 14:58:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 152 transitions. [2020-10-27 14:58:38,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-27 14:58:38,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:58:38,658 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:58:38,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 14:58:38,659 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:58:38,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:58:38,659 INFO L82 PathProgramCache]: Analyzing trace with hash 25424299, now seen corresponding path program 20 times [2020-10-27 14:58:38,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:58:38,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752186657] [2020-10-27 14:58:38,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:58:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:38,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:39,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-27 14:58:41,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:58:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2716 [2020-10-27 14:58:41,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 14:58:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:58:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-27 14:58:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:58:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:58:41,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:58:41,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:58:41,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:58:41,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 14:58:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:41,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:41,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:41,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 14:58:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:41,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:41,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:41,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 14:58:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:41,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:41,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:41,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 14:58:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:41,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:41,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:41,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:41,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 14:58:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:41,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:58:41,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:41,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:41,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 14:58:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:41,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:41,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:41,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:41,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 14:58:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:41,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:41,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:41,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 14:58:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:41,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:41,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:41,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 14:58:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:41,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:41,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:41,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 14:58:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:41,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:41,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:41,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 14:58:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:41,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:41,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:41,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:41,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:41,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:58:41,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:41,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:41,915 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 264 proven. 231 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-27 14:58:41,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752186657] [2020-10-27 14:58:41,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:58:41,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 14:58:41,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279114691] [2020-10-27 14:58:41,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 14:58:41,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:58:41,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 14:58:41,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2020-10-27 14:58:41,921 INFO L87 Difference]: Start difference. First operand 150 states and 152 transitions. Second operand 16 states. [2020-10-27 14:58:43,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:58:43,190 INFO L93 Difference]: Finished difference Result 264 states and 269 transitions. [2020-10-27 14:58:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-27 14:58:43,192 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 147 [2020-10-27 14:58:43,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:58:43,195 INFO L225 Difference]: With dead ends: 264 [2020-10-27 14:58:43,195 INFO L226 Difference]: Without dead ends: 156 [2020-10-27 14:58:43,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=279, Invalid=533, Unknown=0, NotChecked=0, Total=812 [2020-10-27 14:58:43,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-27 14:58:43,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2020-10-27 14:58:43,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-27 14:58:43,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 156 transitions. [2020-10-27 14:58:43,213 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 156 transitions. Word has length 147 [2020-10-27 14:58:43,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:58:43,213 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 156 transitions. [2020-10-27 14:58:43,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 14:58:43,213 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 156 transitions. [2020-10-27 14:58:43,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 14:58:43,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:58:43,215 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:58:43,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-27 14:58:43,215 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:58:43,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:58:43,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1181101264, now seen corresponding path program 21 times [2020-10-27 14:58:43,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:58:43,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769386425] [2020-10-27 14:58:43,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:58:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:43,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:44,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:48,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:48,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 14:58:48,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:58:48,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 14:58:48,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 14:58:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:58:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-27 14:58:48,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:58:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:58:49,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:49,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:58:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:58:49,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 14:58:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:49,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:49,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:49,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 14:58:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:49,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:49,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:49,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:49,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 14:58:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:49,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:49,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:49,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 14:58:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:49,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:49,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 14:58:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:49,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:49,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:49,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 14:58:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:49,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:49,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:49,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:49,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 14:58:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:49,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:49,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:49,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:49,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 14:58:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:49,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:58:49,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:49,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 14:58:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:49,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:49,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:49,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 14:58:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:49,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:58:49,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:49,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:49,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:49,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 14:58:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:49,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:49,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:58:49,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:58:49,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:58:49,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:58:49,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:58:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:58:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:58:49,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:58:49,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:58:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 56 proven. 484 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-27 14:58:50,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769386425] [2020-10-27 14:58:50,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:58:50,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-27 14:58:50,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822489119] [2020-10-27 14:58:50,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 14:58:50,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:58:50,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 14:58:50,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2020-10-27 14:58:50,015 INFO L87 Difference]: Start difference. First operand 154 states and 156 transitions. Second operand 23 states. [2020-10-27 14:58:53,718 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-10-27 14:58:53,962 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-10-27 14:58:54,208 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-27 14:58:54,462 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2020-10-27 14:58:54,714 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2020-10-27 14:58:55,011 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-10-27 14:58:55,321 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2020-10-27 14:58:58,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:58:58,296 INFO L93 Difference]: Finished difference Result 170 states and 173 transitions. [2020-10-27 14:58:58,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-10-27 14:58:58,297 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 151 [2020-10-27 14:58:58,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:58:58,299 INFO L225 Difference]: With dead ends: 170 [2020-10-27 14:58:58,300 INFO L226 Difference]: Without dead ends: 167 [2020-10-27 14:58:58,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 36 SyntacticMatches, 29 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1022 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=949, Invalid=4751, Unknown=0, NotChecked=0, Total=5700 [2020-10-27 14:58:58,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-27 14:58:58,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 162. [2020-10-27 14:58:58,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-27 14:58:58,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 164 transitions. [2020-10-27 14:58:58,321 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 164 transitions. Word has length 151 [2020-10-27 14:58:58,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:58:58,321 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 164 transitions. [2020-10-27 14:58:58,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 14:58:58,322 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 164 transitions. [2020-10-27 14:58:58,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-27 14:58:58,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:58:58,323 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:58:58,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-27 14:58:58,324 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:58:58,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:58:58,324 INFO L82 PathProgramCache]: Analyzing trace with hash -2091196039, now seen corresponding path program 22 times [2020-10-27 14:58:58,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:58:58,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107516233] [2020-10-27 14:58:58,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:58:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:58:58,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:58:58,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 14:59:03,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:59:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4925 [2020-10-27 14:59:03,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-27 14:59:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:59:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-27 14:59:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:59:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:59:03,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:03,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:59:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:59:03,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 14:59:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:03,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 14:59:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:03,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 14:59:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:03,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 14:59:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:03,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 14:59:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:03,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 14:59:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:03,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 14:59:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:03,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 14:59:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:03,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 14:59:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:03,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 14:59:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:03,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 14:59:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:03,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 14:59:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:03,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:03,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:03,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:03,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:03,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:03,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:03,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:03,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:03,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:03,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 312 proven. 276 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-27 14:59:03,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107516233] [2020-10-27 14:59:03,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:59:03,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 14:59:03,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478332634] [2020-10-27 14:59:03,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 14:59:03,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:59:03,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 14:59:03,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2020-10-27 14:59:03,725 INFO L87 Difference]: Start difference. First operand 162 states and 164 transitions. Second operand 18 states. [2020-10-27 14:59:05,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:59:05,568 INFO L93 Difference]: Finished difference Result 290 states and 296 transitions. [2020-10-27 14:59:05,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-27 14:59:05,570 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 159 [2020-10-27 14:59:05,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:59:05,573 INFO L225 Difference]: With dead ends: 290 [2020-10-27 14:59:05,573 INFO L226 Difference]: Without dead ends: 174 [2020-10-27 14:59:05,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=366, Invalid=690, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 14:59:05,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-27 14:59:05,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 166. [2020-10-27 14:59:05,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-27 14:59:05,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 168 transitions. [2020-10-27 14:59:05,593 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 168 transitions. Word has length 159 [2020-10-27 14:59:05,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:59:05,594 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 168 transitions. [2020-10-27 14:59:05,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 14:59:05,594 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 168 transitions. [2020-10-27 14:59:05,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-27 14:59:05,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:59:05,595 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:59:05,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-27 14:59:05,596 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:59:05,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:59:05,596 INFO L82 PathProgramCache]: Analyzing trace with hash 816614686, now seen corresponding path program 23 times [2020-10-27 14:59:05,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:59:05,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517443084] [2020-10-27 14:59:05,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:59:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:05,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:06,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:10,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:10,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-27 14:59:10,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:59:10,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 14:59:10,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:10,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-27 14:59:10,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:59:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-27 14:59:10,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:59:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:59:13,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 14:59:13,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:59:13,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:59:13,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 14:59:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:59:13,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 14:59:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:59:13,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 14:59:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:59:13,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 14:59:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:59:13,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 14:59:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:59:13,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 14:59:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:59:13,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 14:59:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:59:13,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 14:59:13,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 14:59:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 14:59:13,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 14:59:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 14:59:13,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 14:59:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 14:59:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:59:13,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 14:59:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:13,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:13,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:13,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:13,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:13,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:59:13,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:13,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 61 proven. 576 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-27 14:59:13,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517443084] [2020-10-27 14:59:13,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:59:13,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-27 14:59:13,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997410267] [2020-10-27 14:59:13,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-27 14:59:13,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:59:13,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-27 14:59:13,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2020-10-27 14:59:13,456 INFO L87 Difference]: Start difference. First operand 166 states and 168 transitions. Second operand 26 states. [2020-10-27 14:59:18,490 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 14:59:18,855 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 14:59:19,196 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 14:59:19,753 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 14:59:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:59:23,591 INFO L93 Difference]: Finished difference Result 182 states and 185 transitions. [2020-10-27 14:59:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-27 14:59:23,593 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 163 [2020-10-27 14:59:23,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:59:23,595 INFO L225 Difference]: With dead ends: 182 [2020-10-27 14:59:23,595 INFO L226 Difference]: Without dead ends: 179 [2020-10-27 14:59:23,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 40 SyntacticMatches, 31 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=1162, Invalid=5318, Unknown=0, NotChecked=0, Total=6480 [2020-10-27 14:59:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-10-27 14:59:23,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 174. [2020-10-27 14:59:23,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-27 14:59:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 176 transitions. [2020-10-27 14:59:23,622 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 176 transitions. Word has length 163 [2020-10-27 14:59:23,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:59:23,623 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 176 transitions. [2020-10-27 14:59:23,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-27 14:59:23,623 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 176 transitions. [2020-10-27 14:59:23,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-27 14:59:23,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:59:23,625 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:59:23,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-27 14:59:23,625 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:59:23,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:59:23,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1642392633, now seen corresponding path program 24 times [2020-10-27 14:59:23,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:59:23,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893234713] [2020-10-27 14:59:23,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:59:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:23,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:24,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:28,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:28,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-27 14:59:28,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:59:28,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-27 14:59:28,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 14:59:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:59:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-10-27 14:59:28,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:59:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:59:29,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:59:29,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:59:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:59:29,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 14:59:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 14:59:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 14:59:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 14:59:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 14:59:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 14:59:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 14:59:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 14:59:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 14:59:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 14:59:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 14:59:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 14:59:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 14:59:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:29,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:29,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:29,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:29,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:29,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:29,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:29,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:29,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:29,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 315 proven. 374 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-27 14:59:29,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893234713] [2020-10-27 14:59:29,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:59:29,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 14:59:29,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180250533] [2020-10-27 14:59:29,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 14:59:29,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:59:29,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 14:59:29,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=235, Unknown=0, NotChecked=0, Total=380 [2020-10-27 14:59:29,222 INFO L87 Difference]: Start difference. First operand 174 states and 176 transitions. Second operand 20 states. [2020-10-27 14:59:31,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:59:31,494 INFO L93 Difference]: Finished difference Result 310 states and 316 transitions. [2020-10-27 14:59:31,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-27 14:59:31,495 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 171 [2020-10-27 14:59:31,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:59:31,498 INFO L225 Difference]: With dead ends: 310 [2020-10-27 14:59:31,499 INFO L226 Difference]: Without dead ends: 186 [2020-10-27 14:59:31,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=421, Invalid=839, Unknown=0, NotChecked=0, Total=1260 [2020-10-27 14:59:31,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-10-27 14:59:31,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 178. [2020-10-27 14:59:31,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-27 14:59:31,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 180 transitions. [2020-10-27 14:59:31,523 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 180 transitions. Word has length 171 [2020-10-27 14:59:31,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:59:31,524 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 180 transitions. [2020-10-27 14:59:31,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 14:59:31,524 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 180 transitions. [2020-10-27 14:59:31,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-27 14:59:31,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:59:31,526 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:59:31,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-27 14:59:31,526 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:59:31,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:59:31,527 INFO L82 PathProgramCache]: Analyzing trace with hash 431452140, now seen corresponding path program 25 times [2020-10-27 14:59:31,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:59:31,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778374633] [2020-10-27 14:59:31,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:59:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:31,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:33,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:36,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:36,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-27 14:59:36,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:59:36,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 14:59:36,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:36,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 14:59:36,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 14:59:36,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 192 [2020-10-27 14:59:36,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:59:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:59:38,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:59:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:59:38,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 14:59:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 14:59:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 14:59:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 14:59:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 14:59:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 14:59:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 14:59:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 14:59:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 14:59:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 14:59:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 14:59:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 14:59:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:38,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 14:59:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:38,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:38,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:38,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:38,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:38,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:59:38,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:38,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:38,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:38,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:38,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:38,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 66 proven. 676 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-27 14:59:38,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778374633] [2020-10-27 14:59:38,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:59:38,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 14:59:38,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718108414] [2020-10-27 14:59:38,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 14:59:38,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:59:38,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 14:59:38,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=550, Unknown=0, NotChecked=0, Total=600 [2020-10-27 14:59:38,773 INFO L87 Difference]: Start difference. First operand 178 states and 180 transitions. Second operand 25 states. [2020-10-27 14:59:43,843 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-27 14:59:44,515 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 14:59:44,781 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 14:59:45,385 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-10-27 14:59:45,791 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2020-10-27 14:59:46,167 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-27 14:59:46,695 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-27 14:59:47,028 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-27 14:59:47,361 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-27 14:59:47,752 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2020-10-27 14:59:48,034 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 14:59:51,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:59:51,420 INFO L93 Difference]: Finished difference Result 194 states and 197 transitions. [2020-10-27 14:59:51,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-27 14:59:51,421 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 175 [2020-10-27 14:59:51,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:59:51,424 INFO L225 Difference]: With dead ends: 194 [2020-10-27 14:59:51,424 INFO L226 Difference]: Without dead ends: 191 [2020-10-27 14:59:51,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 42 SyntacticMatches, 35 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1266 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=1219, Invalid=5921, Unknown=0, NotChecked=0, Total=7140 [2020-10-27 14:59:51,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-27 14:59:51,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 186. [2020-10-27 14:59:51,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-27 14:59:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 188 transitions. [2020-10-27 14:59:51,450 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 188 transitions. Word has length 175 [2020-10-27 14:59:51,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:59:51,451 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 188 transitions. [2020-10-27 14:59:51,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 14:59:51,451 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 188 transitions. [2020-10-27 14:59:51,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-27 14:59:51,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:59:51,453 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:59:51,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-27 14:59:51,453 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:59:51,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:59:51,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1774892907, now seen corresponding path program 26 times [2020-10-27 14:59:51,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:59:51,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851951783] [2020-10-27 14:59:51,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:59:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:51,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:51,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-27 14:59:56,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:59:56,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4650 [2020-10-27 14:59:56,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 14:59:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 14:59:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-27 14:59:56,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:59:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:59:56,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:59:56,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:59:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:59:56,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 14:59:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:56,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 14:59:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:56,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 14:59:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:56,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 14:59:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:56,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 14:59:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:56,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 14:59:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:56,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 14:59:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:56,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 14:59:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:59:56,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 14:59:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:56,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 14:59:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:56,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 14:59:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:56,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 14:59:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:56,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 14:59:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:56,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-27 14:59:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:56,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:59:56,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:59:56,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:59:56,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:59:56,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:59:56,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:59:56,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:59:56,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:59:56,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:59:56,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:59:56,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 367 proven. 431 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-27 14:59:56,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851951783] [2020-10-27 14:59:56,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:59:56,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-27 14:59:56,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368185862] [2020-10-27 14:59:56,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 14:59:56,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:59:56,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 14:59:56,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=258, Unknown=0, NotChecked=0, Total=420 [2020-10-27 14:59:56,762 INFO L87 Difference]: Start difference. First operand 186 states and 188 transitions. Second operand 21 states. [2020-10-27 14:59:58,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:59:58,674 INFO L93 Difference]: Finished difference Result 330 states and 336 transitions. [2020-10-27 14:59:58,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-27 14:59:58,676 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 183 [2020-10-27 14:59:58,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:59:58,679 INFO L225 Difference]: With dead ends: 330 [2020-10-27 14:59:58,679 INFO L226 Difference]: Without dead ends: 198 [2020-10-27 14:59:58,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=472, Invalid=934, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 14:59:58,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-27 14:59:58,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 190. [2020-10-27 14:59:58,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-27 14:59:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 192 transitions. [2020-10-27 14:59:58,699 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 192 transitions. Word has length 183 [2020-10-27 14:59:58,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:59:58,699 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 192 transitions. [2020-10-27 14:59:58,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 14:59:58,700 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 192 transitions. [2020-10-27 14:59:58,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-27 14:59:58,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:59:58,701 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:59:58,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-27 14:59:58,702 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:59:58,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:59:58,702 INFO L82 PathProgramCache]: Analyzing trace with hash 387421498, now seen corresponding path program 27 times [2020-10-27 14:59:58,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:59:58,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51951416] [2020-10-27 14:59:58,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:59:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:59:58,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:00,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:03,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:03,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-27 15:00:03,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:00:03,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-27 15:00:03,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-27 15:00:03,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 15:00:03,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-27 15:00:03,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:00:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:00:06,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:00:06,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:00:06,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:00:06,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 15:00:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:06,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 15:00:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:06,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 15:00:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:06,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 15:00:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:06,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 15:00:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:06,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 15:00:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:06,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 15:00:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:06,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 15:00:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:06,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 15:00:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:06,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 15:00:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:06,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 15:00:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:06,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 15:00:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:06,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 15:00:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:06,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 15:00:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:06,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:06,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:06,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:06,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:06,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:06,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:06,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:06,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:06,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:06,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:06,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 71 proven. 784 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-27 15:00:06,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51951416] [2020-10-27 15:00:06,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:00:06,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-27 15:00:06,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887636071] [2020-10-27 15:00:06,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-27 15:00:06,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:00:06,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-27 15:00:06,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2020-10-27 15:00:06,377 INFO L87 Difference]: Start difference. First operand 190 states and 192 transitions. Second operand 26 states. [2020-10-27 15:00:12,223 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 15:00:12,765 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2020-10-27 15:00:13,132 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2020-10-27 15:00:13,498 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2020-10-27 15:00:13,898 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-10-27 15:00:14,243 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2020-10-27 15:00:14,659 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-10-27 15:00:15,088 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2020-10-27 15:00:19,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:00:19,205 INFO L93 Difference]: Finished difference Result 206 states and 209 transitions. [2020-10-27 15:00:19,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-27 15:00:19,207 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 187 [2020-10-27 15:00:19,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:00:19,209 INFO L225 Difference]: With dead ends: 206 [2020-10-27 15:00:19,209 INFO L226 Difference]: Without dead ends: 203 [2020-10-27 15:00:19,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 45 SyntacticMatches, 38 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1429 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=1370, Invalid=6640, Unknown=0, NotChecked=0, Total=8010 [2020-10-27 15:00:19,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-27 15:00:19,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 198. [2020-10-27 15:00:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-27 15:00:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 200 transitions. [2020-10-27 15:00:19,231 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 200 transitions. Word has length 187 [2020-10-27 15:00:19,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:00:19,231 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 200 transitions. [2020-10-27 15:00:19,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-27 15:00:19,231 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 200 transitions. [2020-10-27 15:00:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-27 15:00:19,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:00:19,233 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:00:19,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-27 15:00:19,233 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:00:19,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:00:19,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1148862435, now seen corresponding path program 28 times [2020-10-27 15:00:19,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:00:19,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606591188] [2020-10-27 15:00:19,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:00:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:19,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:20,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-27 15:00:23,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:00:23,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4018 [2020-10-27 15:00:23,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 15:00:23,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 15:00:23,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-27 15:00:23,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:00:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:00:23,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:00:23,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:00:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:00:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 15:00:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:23,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 15:00:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:23,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 15:00:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:23,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 15:00:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:23,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 15:00:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:23,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 15:00:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:23,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 15:00:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:23,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 15:00:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:23,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 15:00:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:23,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 15:00:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:23,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 15:00:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:23,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 15:00:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:23,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 15:00:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:23,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 15:00:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 15:00:23,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-27 15:00:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:23,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:23,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:23,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:00:23,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:00:23,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:00:23,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:00:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:00:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:00:23,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:00:23,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 480 proven. 435 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-27 15:00:23,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606591188] [2020-10-27 15:00:23,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:00:23,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 15:00:23,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19722671] [2020-10-27 15:00:23,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 15:00:23,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:00:23,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 15:00:23,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=223, Unknown=0, NotChecked=0, Total=380 [2020-10-27 15:00:23,828 INFO L87 Difference]: Start difference. First operand 198 states and 200 transitions. Second operand 20 states. [2020-10-27 15:00:25,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:00:25,605 INFO L93 Difference]: Finished difference Result 344 states and 349 transitions. [2020-10-27 15:00:25,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-27 15:00:25,607 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 195 [2020-10-27 15:00:25,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:00:25,609 INFO L225 Difference]: With dead ends: 344 [2020-10-27 15:00:25,610 INFO L226 Difference]: Without dead ends: 204 [2020-10-27 15:00:25,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=465, Invalid=867, Unknown=0, NotChecked=0, Total=1332 [2020-10-27 15:00:25,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-27 15:00:25,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2020-10-27 15:00:25,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-27 15:00:25,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 204 transitions. [2020-10-27 15:00:25,631 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 204 transitions. Word has length 195 [2020-10-27 15:00:25,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:00:25,632 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 204 transitions. [2020-10-27 15:00:25,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 15:00:25,632 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 204 transitions. [2020-10-27 15:00:25,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-27 15:00:25,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:00:25,633 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:00:25,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-27 15:00:25,633 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:00:25,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:00:25,634 INFO L82 PathProgramCache]: Analyzing trace with hash 582860040, now seen corresponding path program 29 times [2020-10-27 15:00:25,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:00:25,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001338002] [2020-10-27 15:00:25,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:00:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:00:25,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:27,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:00:30,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:00:30,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-27 15:00:30,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:00:30,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 15:00:30,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:00:30,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 67 [2020-10-27 15:00:30,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 15:00:30,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-27 15:00:30,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0