/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:07:12,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:07:12,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:07:12,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:07:12,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:07:12,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:07:12,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:07:12,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:07:12,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:07:12,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:07:12,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:07:12,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:07:12,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:07:12,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:07:12,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:07:12,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:07:12,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:07:12,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:07:12,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:07:12,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:07:12,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:07:12,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:07:12,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:07:12,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:07:12,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:07:12,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:07:12,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:07:12,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:07:12,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:07:12,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:07:12,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:07:12,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:07:12,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:07:12,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:07:12,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:07:12,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:07:12,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:07:12,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:07:12,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:07:12,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:07:12,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:07:12,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 08:07:12,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:07:12,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:07:12,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:07:12,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:07:12,740 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:07:12,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:07:12,741 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:07:12,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:07:12,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:07:12,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:07:12,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:07:12,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:07:12,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:07:12,743 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:07:12,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:07:12,743 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:07:12,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:07:12,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:07:12,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:07:12,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:07:12,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:07:12,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:07:12,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:07:12,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:07:12,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:07:12,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:07:12,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:07:12,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:07:12,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:07:12,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:07:13,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:07:13,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:07:13,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:07:13,179 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:07:13,180 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:07:13,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label50.c [2020-10-29 08:07:13,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8af59363/68f1ca4b2f7e4e069f06dfa09179b0fb/FLAG767a6865e [2020-10-29 08:07:14,177 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:07:14,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label50.c [2020-10-29 08:07:14,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8af59363/68f1ca4b2f7e4e069f06dfa09179b0fb/FLAG767a6865e [2020-10-29 08:07:14,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8af59363/68f1ca4b2f7e4e069f06dfa09179b0fb [2020-10-29 08:07:14,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:07:14,326 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:07:14,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:07:14,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:07:14,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:07:14,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:07:14" (1/1) ... [2020-10-29 08:07:14,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b885834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:14, skipping insertion in model container [2020-10-29 08:07:14,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:07:14" (1/1) ... [2020-10-29 08:07:14,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:07:14,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:07:15,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:07:15,313 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:07:15,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:07:15,537 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:07:15,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:15 WrapperNode [2020-10-29 08:07:15,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:07:15,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:07:15,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:07:15,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:07:15,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:15" (1/1) ... [2020-10-29 08:07:15,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:15" (1/1) ... [2020-10-29 08:07:15,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:15" (1/1) ... [2020-10-29 08:07:15,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:15" (1/1) ... [2020-10-29 08:07:15,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:15" (1/1) ... [2020-10-29 08:07:15,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:15" (1/1) ... [2020-10-29 08:07:15,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:15" (1/1) ... [2020-10-29 08:07:15,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:07:15,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:07:15,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:07:15,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:07:15,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:07:15,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:07:15,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:07:15,903 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:07:15,903 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:07:15,904 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:07:15,904 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:07:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:07:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:07:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:07:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:07:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:07:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:07:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:07:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:07:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:07:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:07:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:07:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:07:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:07:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:07:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:07:18,412 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:07:18,413 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:07:18,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:07:18 BoogieIcfgContainer [2020-10-29 08:07:18,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:07:18,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:07:18,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:07:18,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:07:18,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:07:14" (1/3) ... [2020-10-29 08:07:18,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb5fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:07:18, skipping insertion in model container [2020-10-29 08:07:18,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:15" (2/3) ... [2020-10-29 08:07:18,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb5fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:07:18, skipping insertion in model container [2020-10-29 08:07:18,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:07:18" (3/3) ... [2020-10-29 08:07:18,425 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label50.c [2020-10-29 08:07:18,438 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:07:18,444 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:07:18,458 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:07:18,489 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:07:18,489 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:07:18,489 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:07:18,489 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:07:18,489 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:07:18,489 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:07:18,490 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:07:18,490 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:07:18,517 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:07:18,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-29 08:07:18,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:18,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:18,527 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:18,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:18,538 INFO L82 PathProgramCache]: Analyzing trace with hash 198573796, now seen corresponding path program 1 times [2020-10-29 08:07:18,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:18,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427914783] [2020-10-29 08:07:18,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:18,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:19,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:19,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 08:07:19,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:19,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 571 [2020-10-29 08:07:19,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:19,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:19,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:07:19,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:19,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-29 08:07:19,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:07:19,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:19,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:19,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:19,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:19,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:19,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:07:19,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:19,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:19,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:19,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:19,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:19,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:19,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:07:19,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427914783] [2020-10-29 08:07:19,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:07:19,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 08:07:19,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496412414] [2020-10-29 08:07:19,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:07:19,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:19,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:07:19,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:07:19,620 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 5 states. [2020-10-29 08:07:26,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:26,845 INFO L93 Difference]: Finished difference Result 1520 states and 2854 transitions. [2020-10-29 08:07:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 08:07:26,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-10-29 08:07:26,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:26,876 INFO L225 Difference]: With dead ends: 1520 [2020-10-29 08:07:26,877 INFO L226 Difference]: Without dead ends: 1039 [2020-10-29 08:07:26,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:26,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-10-29 08:07:27,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1032. [2020-10-29 08:07:27,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2020-10-29 08:07:27,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1667 transitions. [2020-10-29 08:07:27,044 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1667 transitions. Word has length 52 [2020-10-29 08:07:27,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:27,045 INFO L481 AbstractCegarLoop]: Abstraction has 1032 states and 1667 transitions. [2020-10-29 08:07:27,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:07:27,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1667 transitions. [2020-10-29 08:07:27,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-29 08:07:27,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:27,069 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:27,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:07:27,070 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:27,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:27,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1149040694, now seen corresponding path program 1 times [2020-10-29 08:07:27,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:27,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028583499] [2020-10-29 08:07:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:28,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:30,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:32,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:32,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:32,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-29 08:07:32,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:07:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-29 08:07:32,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:32,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:32,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:07:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-29 08:07:32,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:07:32,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:32,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:32,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:32,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:32,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:32,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:07:32,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:32,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:32,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:32,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:32,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:32,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 08:07:32,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:32,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:32,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:32,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:32,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 08:07:32,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:32,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-29 08:07:32,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:32,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 08:07:32,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:32,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 08:07:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:32,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:32,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:32,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 08:07:32,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:32,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-29 08:07:32,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:32,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:32,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:32,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 08:07:32,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:33,041 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:07:33,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028583499] [2020-10-29 08:07:33,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:33,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:07:33,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613281115] [2020-10-29 08:07:33,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:07:33,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:33,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:07:33,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:07:33,046 INFO L87 Difference]: Start difference. First operand 1032 states and 1667 transitions. Second operand 8 states. [2020-10-29 08:07:38,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:38,944 INFO L93 Difference]: Finished difference Result 2771 states and 4601 transitions. [2020-10-29 08:07:38,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:07:38,945 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 219 [2020-10-29 08:07:38,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:38,959 INFO L225 Difference]: With dead ends: 2771 [2020-10-29 08:07:38,959 INFO L226 Difference]: Without dead ends: 1745 [2020-10-29 08:07:38,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:07:38,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2020-10-29 08:07:39,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1728. [2020-10-29 08:07:39,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1728 states. [2020-10-29 08:07:39,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2623 transitions. [2020-10-29 08:07:39,037 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2623 transitions. Word has length 219 [2020-10-29 08:07:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:39,038 INFO L481 AbstractCegarLoop]: Abstraction has 1728 states and 2623 transitions. [2020-10-29 08:07:39,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:07:39,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2623 transitions. [2020-10-29 08:07:39,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-29 08:07:39,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:39,043 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:39,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:07:39,044 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:39,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:39,045 INFO L82 PathProgramCache]: Analyzing trace with hash -631195014, now seen corresponding path program 1 times [2020-10-29 08:07:39,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:39,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377992170] [2020-10-29 08:07:39,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:39,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:39,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:40,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:40,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:42,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:42,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-29 08:07:42,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:07:42,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3897 [2020-10-29 08:07:42,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:42,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:42,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:42,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 08:07:42,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 08:07:42,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:43,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:43,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:43,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:43,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:43,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:43,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:07:43,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:43,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:43,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:43,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:43,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:43,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:43,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:07:43,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:43,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 08:07:43,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:43,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:43,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:43,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:43,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:07:43,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:43,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 08:07:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:43,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:43,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:43,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 08:07:43,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:43,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-29 08:07:43,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:43,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:43,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:43,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 08:07:43,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 08:07:43,664 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 08:07:43,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377992170] [2020-10-29 08:07:43,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:43,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:43,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440038398] [2020-10-29 08:07:43,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:43,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:43,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:43,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:43,670 INFO L87 Difference]: Start difference. First operand 1728 states and 2623 transitions. Second operand 7 states. [2020-10-29 08:07:49,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:49,397 INFO L93 Difference]: Finished difference Result 4183 states and 6397 transitions. [2020-10-29 08:07:49,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:07:49,398 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 259 [2020-10-29 08:07:49,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:49,411 INFO L225 Difference]: With dead ends: 4183 [2020-10-29 08:07:49,412 INFO L226 Difference]: Without dead ends: 2104 [2020-10-29 08:07:49,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:07:49,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-10-29 08:07:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2073. [2020-10-29 08:07:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2073 states. [2020-10-29 08:07:49,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2400 transitions. [2020-10-29 08:07:49,483 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2400 transitions. Word has length 259 [2020-10-29 08:07:49,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:49,484 INFO L481 AbstractCegarLoop]: Abstraction has 2073 states and 2400 transitions. [2020-10-29 08:07:49,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:49,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2400 transitions. [2020-10-29 08:07:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-29 08:07:49,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:49,492 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:49,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:07:49,492 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:49,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:49,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1891067914, now seen corresponding path program 1 times [2020-10-29 08:07:49,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:49,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874288879] [2020-10-29 08:07:49,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:49,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:49,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:50,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:52,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:53,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-29 08:07:54,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 08:07:54,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:54,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:54,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:54,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:54,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:07:54,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:54,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:54,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:54,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:54,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:54,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:07:54,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:54,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 08:07:54,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:54,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:54,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:07:54,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:54,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 08:07:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:54,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:55,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:55,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:07:55,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:55,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 08:07:55,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:55,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:55,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:07:55,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:55,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-10-29 08:07:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:55,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:55,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:55,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 08:07:55,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:55,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:07:55,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:55,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:55,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:55,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-29 08:07:55,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:55,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:55,553 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 243 proven. 91 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-29 08:07:55,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874288879] [2020-10-29 08:07:55,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:55,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:55,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054539397] [2020-10-29 08:07:55,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:55,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:55,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:55,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:55,557 INFO L87 Difference]: Start difference. First operand 2073 states and 2400 transitions. Second operand 7 states. [2020-10-29 08:07:59,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:59,229 INFO L93 Difference]: Finished difference Result 5909 states and 6890 transitions. [2020-10-29 08:07:59,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:07:59,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 369 [2020-10-29 08:07:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:59,254 INFO L225 Difference]: With dead ends: 5909 [2020-10-29 08:07:59,254 INFO L226 Difference]: Without dead ends: 3842 [2020-10-29 08:07:59,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:07:59,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2020-10-29 08:07:59,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3135. [2020-10-29 08:07:59,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3135 states. [2020-10-29 08:07:59,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 3573 transitions. [2020-10-29 08:07:59,367 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 3573 transitions. Word has length 369 [2020-10-29 08:07:59,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:59,368 INFO L481 AbstractCegarLoop]: Abstraction has 3135 states and 3573 transitions. [2020-10-29 08:07:59,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:59,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 3573 transitions. [2020-10-29 08:07:59,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2020-10-29 08:07:59,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:59,393 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:59,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:07:59,393 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:59,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:59,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1286461962, now seen corresponding path program 1 times [2020-10-29 08:07:59,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:59,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218905315] [2020-10-29 08:07:59,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:59,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:59,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:59,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:59,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:04,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:04,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 723 [2020-10-29 08:08:04,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:08:04,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 08:08:04,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:04,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-29 08:08:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 08:08:04,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:04,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:04,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:04,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:04,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:04,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:04,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:08:04,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:04,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:04,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:04,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:04,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:04,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:04,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:04,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:04,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:04,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:08:04,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:04,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:08:04,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:04,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:04,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:04,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:04,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:08:04,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:04,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 08:08:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:04,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:04,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:04,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:08:04,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:04,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-29 08:08:04,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:04,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:04,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:04,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:04,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:08:04,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:04,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-29 08:08:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:04,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:05,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:05,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:08:05,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:05,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 08:08:05,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:05,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:08:05,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:05,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:08:05,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-29 08:08:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:05,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:05,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:05,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:05,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:05,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:08:05,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:05,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:05,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:05,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:05,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2020-10-29 08:08:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:05,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:05,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:05,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:08:05,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:05,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-29 08:08:05,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:05,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:05,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:05,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:08:05,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:05,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:08:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1198 backedges. 298 proven. 333 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2020-10-29 08:08:06,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218905315] [2020-10-29 08:08:06,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:06,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:06,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172147410] [2020-10-29 08:08:06,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:06,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:06,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:06,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:06,085 INFO L87 Difference]: Start difference. First operand 3135 states and 3573 transitions. Second operand 7 states. [2020-10-29 08:08:10,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:10,289 INFO L93 Difference]: Finished difference Result 7326 states and 8439 transitions. [2020-10-29 08:08:10,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:08:10,290 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 703 [2020-10-29 08:08:10,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:10,315 INFO L225 Difference]: With dead ends: 7326 [2020-10-29 08:08:10,315 INFO L226 Difference]: Without dead ends: 4197 [2020-10-29 08:08:10,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:08:10,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2020-10-29 08:08:10,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 3833. [2020-10-29 08:08:10,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3833 states. [2020-10-29 08:08:10,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3833 states to 3833 states and 4294 transitions. [2020-10-29 08:08:10,436 INFO L78 Accepts]: Start accepts. Automaton has 3833 states and 4294 transitions. Word has length 703 [2020-10-29 08:08:10,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:10,437 INFO L481 AbstractCegarLoop]: Abstraction has 3833 states and 4294 transitions. [2020-10-29 08:08:10,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:10,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3833 states and 4294 transitions. [2020-10-29 08:08:10,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2020-10-29 08:08:10,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:10,465 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:10,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:08:10,465 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:10,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:10,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1865224816, now seen corresponding path program 1 times [2020-10-29 08:08:10,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:10,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349139728] [2020-10-29 08:08:10,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:10,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:10,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:10,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:11,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:15,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:15,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 724 [2020-10-29 08:08:15,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:08:15,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-29 08:08:15,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:15,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-10-29 08:08:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:08:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:15,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:15,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:15,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:15,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:15,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:15,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:08:15,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:15,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:15,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:15,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:15,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:15,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:15,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:15,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:15,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:15,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:08:15,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:15,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:08:15,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:15,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:15,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:15,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:15,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:15,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 08:08:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:15,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:15,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:15,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:08:15,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:15,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 08:08:15,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:15,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:08:15,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:15,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-29 08:08:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:16,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:16,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:16,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:08:16,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:16,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-29 08:08:16,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:16,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:16,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:16,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:16,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:08:16,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:16,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2020-10-29 08:08:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:16,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:16,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:16,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:16,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:16,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:08:16,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:16,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:16,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:16,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2020-10-29 08:08:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:16,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:16,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:16,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:08:16,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:16,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-29 08:08:16,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:16,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:08:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:16,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 420 proven. 248 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2020-10-29 08:08:16,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349139728] [2020-10-29 08:08:16,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:16,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:16,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843614416] [2020-10-29 08:08:16,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:16,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:16,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:16,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:16,882 INFO L87 Difference]: Start difference. First operand 3833 states and 4294 transitions. Second operand 7 states. [2020-10-29 08:08:22,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:22,786 INFO L93 Difference]: Finished difference Result 9803 states and 11412 transitions. [2020-10-29 08:08:22,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:08:22,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 704 [2020-10-29 08:08:22,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:22,819 INFO L225 Difference]: With dead ends: 9803 [2020-10-29 08:08:22,819 INFO L226 Difference]: Without dead ends: 5976 [2020-10-29 08:08:22,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:08:22,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2020-10-29 08:08:22,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 5962. [2020-10-29 08:08:22,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5962 states. [2020-10-29 08:08:22,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 6820 transitions. [2020-10-29 08:08:23,000 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 6820 transitions. Word has length 704 [2020-10-29 08:08:23,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:23,001 INFO L481 AbstractCegarLoop]: Abstraction has 5962 states and 6820 transitions. [2020-10-29 08:08:23,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:23,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 6820 transitions. [2020-10-29 08:08:23,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2020-10-29 08:08:23,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:23,021 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:23,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:08:23,022 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:23,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:23,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1324037436, now seen corresponding path program 1 times [2020-10-29 08:08:23,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:23,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122840370] [2020-10-29 08:08:23,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:23,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:28,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:28,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 732 [2020-10-29 08:08:28,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:08:28,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 08:08:28,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:28,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:28,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:28,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-29 08:08:28,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:08:28,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:28,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:28,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:28,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:28,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:28,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:28,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:08:28,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:28,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:28,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:28,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:28,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:28,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:28,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:28,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:28,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:28,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:08:28,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:28,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 08:08:28,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:28,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:08:28,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:28,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-29 08:08:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:28,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:28,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:28,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:08:28,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:28,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 08:08:28,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:28,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:28,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:28,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:28,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:08:28,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:28,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-10-29 08:08:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:28,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:28,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:28,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:28,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:28,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:08:28,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:28,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:28,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:28,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:28,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2020-10-29 08:08:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:29,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:29,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:29,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:08:29,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:29,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-29 08:08:29,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:29,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:29,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:29,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:08:29,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:29,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:08:29,709 INFO L134 CoverageAnalysis]: Checked inductivity of 985 backedges. 323 proven. 248 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2020-10-29 08:08:29,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122840370] [2020-10-29 08:08:29,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:29,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:29,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784409313] [2020-10-29 08:08:29,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:29,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:29,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:29,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:29,712 INFO L87 Difference]: Start difference. First operand 5962 states and 6820 transitions. Second operand 7 states. [2020-10-29 08:08:33,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:33,437 INFO L93 Difference]: Finished difference Result 12545 states and 14295 transitions. [2020-10-29 08:08:33,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:08:33,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 714 [2020-10-29 08:08:33,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:33,470 INFO L225 Difference]: With dead ends: 12545 [2020-10-29 08:08:33,470 INFO L226 Difference]: Without dead ends: 6593 [2020-10-29 08:08:33,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:08:33,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6593 states. [2020-10-29 08:08:33,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6593 to 6238. [2020-10-29 08:08:33,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6238 states. [2020-10-29 08:08:33,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 6929 transitions. [2020-10-29 08:08:33,656 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 6929 transitions. Word has length 714 [2020-10-29 08:08:33,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:33,657 INFO L481 AbstractCegarLoop]: Abstraction has 6238 states and 6929 transitions. [2020-10-29 08:08:33,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:33,657 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 6929 transitions. [2020-10-29 08:08:33,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2020-10-29 08:08:33,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:33,676 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:33,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:08:33,676 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:33,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:33,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1389564332, now seen corresponding path program 1 times [2020-10-29 08:08:33,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:33,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793978718] [2020-10-29 08:08:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:33,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:33,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:36,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:38,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:38,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 818 [2020-10-29 08:08:38,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:08:38,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-29 08:08:38,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:38,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:38,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:08:38,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:08:38,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-29 08:08:38,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:38,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:38,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:38,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:38,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:38,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:38,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:08:38,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:38,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:38,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:38,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:38,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:08:38,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:39,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:39,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:39,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:39,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:39,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:08:39,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:08:39,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-29 08:08:39,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:39,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:08:39,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:39,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-29 08:08:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:39,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:39,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:39,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:39,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:39,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-29 08:08:39,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:39,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:39,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:39,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:39,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:08:39,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:39,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-29 08:08:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:39,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:39,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:39,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:08:39,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:39,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 08:08:39,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:39,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:39,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:39,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:08:39,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:39,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:39,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2020-10-29 08:08:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:39,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:39,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:39,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:39,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:39,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 08:08:39,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:39,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:39,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:39,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:39,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:39,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:39,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-10-29 08:08:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:39,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:39,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:39,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:08:39,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:39,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 08:08:39,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:39,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:39,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:39,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:08:39,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:39,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:40,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1493 backedges. 233 proven. 746 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2020-10-29 08:08:40,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793978718] [2020-10-29 08:08:40,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:40,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:40,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489717702] [2020-10-29 08:08:40,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:40,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:40,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:40,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:40,441 INFO L87 Difference]: Start difference. First operand 6238 states and 6929 transitions. Second operand 7 states. [2020-10-29 08:08:44,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:44,328 INFO L93 Difference]: Finished difference Result 14197 states and 15819 transitions. [2020-10-29 08:08:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:08:44,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 798 [2020-10-29 08:08:44,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:44,357 INFO L225 Difference]: With dead ends: 14197 [2020-10-29 08:08:44,357 INFO L226 Difference]: Without dead ends: 7965 [2020-10-29 08:08:44,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:08:44,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7965 states. [2020-10-29 08:08:44,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7965 to 7931. [2020-10-29 08:08:44,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7931 states. [2020-10-29 08:08:44,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7931 states to 7931 states and 8719 transitions. [2020-10-29 08:08:44,559 INFO L78 Accepts]: Start accepts. Automaton has 7931 states and 8719 transitions. Word has length 798 [2020-10-29 08:08:44,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:44,560 INFO L481 AbstractCegarLoop]: Abstraction has 7931 states and 8719 transitions. [2020-10-29 08:08:44,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:44,560 INFO L276 IsEmpty]: Start isEmpty. Operand 7931 states and 8719 transitions. [2020-10-29 08:08:44,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 982 [2020-10-29 08:08:44,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:44,584 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:44,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:08:44,585 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:44,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:44,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1382296698, now seen corresponding path program 1 times [2020-10-29 08:08:44,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:44,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356521364] [2020-10-29 08:08:44,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:44,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:49,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:49,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:49,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1003 [2020-10-29 08:08:49,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:08:49,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-10-29 08:08:49,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:49,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:49,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:08:49,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:08:49,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:08:49,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:50,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:50,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:50,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:50,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:50,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:50,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:08:50,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:50,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:50,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:50,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:50,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:08:50,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:50,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:50,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:50,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:50,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:08:50,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:50,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-29 08:08:50,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:50,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:50,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:50,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:50,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:08:50,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:50,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:08:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:50,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:50,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:50,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:08:50,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:50,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 08:08:50,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:50,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:50,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:50,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:08:50,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:50,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:50,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:08:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:50,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:50,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:50,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:50,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:50,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 08:08:50,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:50,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:50,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:50,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:08:50,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:50,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:50,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:08:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:50,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:50,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:50,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:08:50,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:50,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 08:08:50,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:50,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:50,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:50,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:08:50,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:50,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:50,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-29 08:08:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:50,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:50,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:50,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:50,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:50,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:08:50,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:50,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:50,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:51,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 08:08:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:51,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:51,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:51,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:08:51,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:51,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 08:08:51,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:51,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:08:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:51,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:51,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 264 proven. 655 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2020-10-29 08:08:51,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356521364] [2020-10-29 08:08:51,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:51,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:51,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189562441] [2020-10-29 08:08:51,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:51,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:51,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:51,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:51,844 INFO L87 Difference]: Start difference. First operand 7931 states and 8719 transitions. Second operand 7 states. [2020-10-29 08:08:55,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:55,456 INFO L93 Difference]: Finished difference Result 16560 states and 18212 transitions. [2020-10-29 08:08:55,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:08:55,463 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 981 [2020-10-29 08:08:55,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:55,490 INFO L225 Difference]: With dead ends: 16560 [2020-10-29 08:08:55,490 INFO L226 Difference]: Without dead ends: 8635 [2020-10-29 08:08:55,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:08:55,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8635 states. [2020-10-29 08:08:55,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8635 to 8611. [2020-10-29 08:08:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8611 states. [2020-10-29 08:08:55,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8611 states to 8611 states and 9432 transitions. [2020-10-29 08:08:55,728 INFO L78 Accepts]: Start accepts. Automaton has 8611 states and 9432 transitions. Word has length 981 [2020-10-29 08:08:55,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:55,729 INFO L481 AbstractCegarLoop]: Abstraction has 8611 states and 9432 transitions. [2020-10-29 08:08:55,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:55,730 INFO L276 IsEmpty]: Start isEmpty. Operand 8611 states and 9432 transitions. [2020-10-29 08:08:55,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1229 [2020-10-29 08:08:55,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:55,767 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:55,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:08:55,767 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:55,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:55,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1803582092, now seen corresponding path program 1 times [2020-10-29 08:08:55,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:55,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807423432] [2020-10-29 08:08:55,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:57,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:57,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:00,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:01,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:01,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1252 [2020-10-29 08:09:01,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:09:01,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-29 08:09:01,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:01,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:09:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:09:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:09:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:01,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:01,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:01,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:01,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:01,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:01,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:09:01,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:01,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:01,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:09:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:01,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:01,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:01,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:01,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:01,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:09:01,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:09:01,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-29 08:09:01,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:01,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:09:01,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:01,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:09:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:01,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:02,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:02,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:09:02,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:02,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-29 08:09:02,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:02,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:02,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:02,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:02,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:09:02,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:02,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:09:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:02,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:02,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:02,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:09:02,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:02,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:09:02,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:02,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:02,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:02,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:09:02,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:02,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:02,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-29 08:09:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:02,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:02,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:02,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:09:02,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:02,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:09:02,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:02,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:09:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:02,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-29 08:09:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:02,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:02,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:02,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:09:02,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:02,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 08:09:02,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:02,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:09:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:02,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:09:02,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-29 08:09:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:02,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:02,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:02,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:02,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:02,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:09:02,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:02,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:09:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:02,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:02,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-29 08:09:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:02,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:02,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:02,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:09:02,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:02,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 08:09:02,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:02,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:09:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:02,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2949 backedges. 569 proven. 667 refuted. 0 times theorem prover too weak. 1713 trivial. 0 not checked. [2020-10-29 08:09:04,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807423432] [2020-10-29 08:09:04,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:04,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:09:04,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050775060] [2020-10-29 08:09:04,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:09:04,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:04,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:09:04,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:09:04,101 INFO L87 Difference]: Start difference. First operand 8611 states and 9432 transitions. Second operand 8 states. [2020-10-29 08:09:09,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:09,403 INFO L93 Difference]: Finished difference Result 17563 states and 19244 transitions. [2020-10-29 08:09:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 08:09:09,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1228 [2020-10-29 08:09:09,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:09,435 INFO L225 Difference]: With dead ends: 17563 [2020-10-29 08:09:09,435 INFO L226 Difference]: Without dead ends: 9634 [2020-10-29 08:09:09,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:09:09,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9634 states. [2020-10-29 08:09:09,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9634 to 8609. [2020-10-29 08:09:09,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8609 states. [2020-10-29 08:09:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8609 states to 8609 states and 9318 transitions. [2020-10-29 08:09:09,660 INFO L78 Accepts]: Start accepts. Automaton has 8609 states and 9318 transitions. Word has length 1228 [2020-10-29 08:09:09,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:09,662 INFO L481 AbstractCegarLoop]: Abstraction has 8609 states and 9318 transitions. [2020-10-29 08:09:09,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:09:09,662 INFO L276 IsEmpty]: Start isEmpty. Operand 8609 states and 9318 transitions. [2020-10-29 08:09:09,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1263 [2020-10-29 08:09:09,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:09,823 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:09,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:09:09,823 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:09,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:09,825 INFO L82 PathProgramCache]: Analyzing trace with hash 952950360, now seen corresponding path program 1 times [2020-10-29 08:09:09,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:09,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575204786] [2020-10-29 08:09:09,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:10,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:10,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:10,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:11,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:11,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:15,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:15,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1288 [2020-10-29 08:09:15,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:09:15,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-29 08:09:15,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:15,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 08:09:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 761 [2020-10-29 08:09:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 523 [2020-10-29 08:09:15,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:15,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:15,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:15,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:15,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:15,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:15,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:15,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:15,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:15,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:15,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:15,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:15,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:15,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:15,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:15,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:15,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:15,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:15,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:09:15,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:15,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:15,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:15,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:15,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:15,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:15,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:15,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:15,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:15,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:15,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:15,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:09:15,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:15,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:15,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:15,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:15,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:15,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:15,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:15,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:15,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:15,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:15,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:15,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:09:15,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:15,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:15,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:15,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:15,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:15,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:15,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:09:15,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:15,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:09:15,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:15,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:15,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:15,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:15,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:15,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:15,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:09:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:15,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:15,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:15,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:09:15,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:15,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 08:09:15,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:15,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:09:15,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:15,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:09:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:15,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:15,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:15,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:15,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:09:15,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:09:15,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-29 08:09:15,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:15,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-29 08:09:15,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:15,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:09:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:16,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:16,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:16,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:16,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:16,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:09:16,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 08:09:16,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:16,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:16,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:16,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:16,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:09:16,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:16,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:09:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:16,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:16,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:16,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:16,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:09:16,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:09:16,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-29 08:09:16,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:16,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:16,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:16,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:16,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-29 08:09:16,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:17,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3679 backedges. 428 proven. 8 refuted. 0 times theorem prover too weak. 3243 trivial. 0 not checked. [2020-10-29 08:09:17,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575204786] [2020-10-29 08:09:17,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:17,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:09:17,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658189308] [2020-10-29 08:09:17,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:09:17,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:17,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:09:17,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:09:17,475 INFO L87 Difference]: Start difference. First operand 8609 states and 9318 transitions. Second operand 5 states. [2020-10-29 08:09:20,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:20,394 INFO L93 Difference]: Finished difference Result 16544 states and 17945 transitions. [2020-10-29 08:09:20,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:09:20,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1262 [2020-10-29 08:09:20,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:20,423 INFO L225 Difference]: With dead ends: 16544 [2020-10-29 08:09:20,423 INFO L226 Difference]: Without dead ends: 8617 [2020-10-29 08:09:20,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:09:20,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2020-10-29 08:09:20,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 8607. [2020-10-29 08:09:20,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8607 states. [2020-10-29 08:09:20,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8607 states to 8607 states and 9192 transitions. [2020-10-29 08:09:20,618 INFO L78 Accepts]: Start accepts. Automaton has 8607 states and 9192 transitions. Word has length 1262 [2020-10-29 08:09:20,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:20,620 INFO L481 AbstractCegarLoop]: Abstraction has 8607 states and 9192 transitions. [2020-10-29 08:09:20,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:09:20,621 INFO L276 IsEmpty]: Start isEmpty. Operand 8607 states and 9192 transitions. [2020-10-29 08:09:20,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2020-10-29 08:09:20,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:20,657 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:20,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:09:20,658 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:20,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:20,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1622902176, now seen corresponding path program 1 times [2020-10-29 08:09:20,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:20,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039026249] [2020-10-29 08:09:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:22,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:22,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:25,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:25,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1362 [2020-10-29 08:09:25,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:09:25,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-29 08:09:25,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:25,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 615 [2020-10-29 08:09:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:09:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:26,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:26,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:26,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:26,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:26,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:26,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:26,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:26,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:26,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:26,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:26,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:26,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:26,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:26,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:26,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:26,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:26,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:26,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:09:26,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:26,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:26,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:26,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:26,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:26,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:26,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:26,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:26,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:09:26,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:26,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:26,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:26,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:26,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:26,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:26,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:26,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:26,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:26,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:26,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:26,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:09:26,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:26,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:26,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:26,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:26,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:26,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:26,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:26,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:26,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:26,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:09:26,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:26,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:09:26,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:26,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:26,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:26,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:26,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:09:26,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:26,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:09:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:26,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:26,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:26,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:09:26,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:26,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-29 08:09:26,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:26,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:26,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:26,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:26,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:09:26,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:26,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:09:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:26,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:26,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:26,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:09:26,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:26,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:09:26,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:26,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:26,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:26,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:09:26,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:26,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:26,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:09:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:26,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:26,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:26,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:26,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:26,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:09:26,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:26,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:26,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:26,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:09:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:26,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:26,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:09:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:26,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:26,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:26,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:09:26,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:26,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 08:09:26,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:26,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:26,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:26,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:09:26,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:26,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:27,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1218 [2020-10-29 08:09:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:27,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:27,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:27,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:09:27,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:27,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:09:27,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:27,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:09:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:27,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:27,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4296 backedges. 949 proven. 458 refuted. 0 times theorem prover too weak. 2889 trivial. 0 not checked. [2020-10-29 08:09:27,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039026249] [2020-10-29 08:09:27,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:27,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:27,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460124855] [2020-10-29 08:09:27,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:27,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:27,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:27,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:27,988 INFO L87 Difference]: Start difference. First operand 8607 states and 9192 transitions. Second operand 7 states. [2020-10-29 08:09:33,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:33,005 INFO L93 Difference]: Finished difference Result 21628 states and 23310 transitions. [2020-10-29 08:09:33,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:09:33,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1334 [2020-10-29 08:09:33,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:33,049 INFO L225 Difference]: With dead ends: 21628 [2020-10-29 08:09:33,049 INFO L226 Difference]: Without dead ends: 13703 [2020-10-29 08:09:33,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:09:33,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13703 states. [2020-10-29 08:09:33,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13703 to 13354. [2020-10-29 08:09:33,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13354 states. [2020-10-29 08:09:33,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13354 states to 13354 states and 14241 transitions. [2020-10-29 08:09:33,307 INFO L78 Accepts]: Start accepts. Automaton has 13354 states and 14241 transitions. Word has length 1334 [2020-10-29 08:09:33,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:33,309 INFO L481 AbstractCegarLoop]: Abstraction has 13354 states and 14241 transitions. [2020-10-29 08:09:33,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:33,309 INFO L276 IsEmpty]: Start isEmpty. Operand 13354 states and 14241 transitions. [2020-10-29 08:09:33,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1336 [2020-10-29 08:09:33,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:33,352 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:33,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:09:33,352 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:33,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:33,353 INFO L82 PathProgramCache]: Analyzing trace with hash 724847766, now seen corresponding path program 1 times [2020-10-29 08:09:33,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:33,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570114012] [2020-10-29 08:09:33,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:33,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:34,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:34,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:38,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:38,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1363 [2020-10-29 08:09:38,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:09:38,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 08:09:38,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:38,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-29 08:09:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:09:38,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:09:38,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:38,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:38,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:38,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:38,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:38,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:09:38,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:38,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:38,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:38,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:38,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:38,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:09:38,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:38,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:38,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:38,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:38,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:38,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 08:09:38,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:38,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:38,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:38,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:38,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:38,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:39,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:39,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:39,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:39,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:39,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:39,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:09:39,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:39,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:39,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:39,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:39,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:39,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:39,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:39,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:39,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:39,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:39,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:39,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:09:39,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:39,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:39,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:39,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:39,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:39,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:39,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:39,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:39,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:39,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:09:39,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:39,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:09:39,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:39,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 08:09:39,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:39,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:09:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:39,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:39,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:39,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:09:39,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:39,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 08:09:39,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:39,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:09:39,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:39,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-29 08:09:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:39,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:39,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:39,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:09:39,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:39,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 08:09:39,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:39,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:09:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:39,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:39,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-29 08:09:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:39,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:39,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:39,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:39,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:39,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:09:39,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:39,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:09:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:39,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-29 08:09:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:39,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:39,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:39,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:09:39,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:39,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 08:09:39,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:39,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:39,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:39,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:09:39,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:39,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:39,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1219 [2020-10-29 08:09:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:39,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:39,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:39,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:09:39,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:39,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 08:09:39,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:39,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:09:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:39,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4304 backedges. 950 proven. 458 refuted. 0 times theorem prover too weak. 2896 trivial. 0 not checked. [2020-10-29 08:09:40,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570114012] [2020-10-29 08:09:40,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:40,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:40,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443184000] [2020-10-29 08:09:40,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:40,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:40,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:40,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:40,937 INFO L87 Difference]: Start difference. First operand 13354 states and 14241 transitions. Second operand 7 states. [2020-10-29 08:09:45,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:45,234 INFO L93 Difference]: Finished difference Result 26052 states and 27836 transitions. [2020-10-29 08:09:45,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:09:45,236 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1335 [2020-10-29 08:09:45,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:45,278 INFO L225 Difference]: With dead ends: 26052 [2020-10-29 08:09:45,279 INFO L226 Difference]: Without dead ends: 13380 [2020-10-29 08:09:45,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:09:45,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13380 states. [2020-10-29 08:09:45,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13380 to 13017. [2020-10-29 08:09:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13017 states. [2020-10-29 08:09:45,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13017 states to 13017 states and 13690 transitions. [2020-10-29 08:09:45,559 INFO L78 Accepts]: Start accepts. Automaton has 13017 states and 13690 transitions. Word has length 1335 [2020-10-29 08:09:45,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:45,560 INFO L481 AbstractCegarLoop]: Abstraction has 13017 states and 13690 transitions. [2020-10-29 08:09:45,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:45,561 INFO L276 IsEmpty]: Start isEmpty. Operand 13017 states and 13690 transitions. [2020-10-29 08:09:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1338 [2020-10-29 08:09:45,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:45,600 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:45,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:09:45,601 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:45,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:45,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1610717102, now seen corresponding path program 1 times [2020-10-29 08:09:45,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:45,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870756131] [2020-10-29 08:09:45,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:46,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:46,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:50,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:50,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1361 [2020-10-29 08:09:50,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:09:50,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-29 08:09:50,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:50,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:50,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:50,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-29 08:09:50,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:09:50,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:51,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:51,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:51,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:51,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:51,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:51,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:09:51,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:51,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:51,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:51,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:51,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:51,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:51,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:51,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:51,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:51,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:51,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:51,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:09:51,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:51,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:51,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:51,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:51,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:51,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:51,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:51,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:51,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:51,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:51,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:51,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:09:51,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:51,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:51,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:51,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:51,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:51,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:51,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:51,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:51,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:51,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:51,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:51,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:09:51,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:51,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:51,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:51,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:51,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:51,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:51,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:09:51,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:51,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-29 08:09:51,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:51,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:51,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:51,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:51,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:09:51,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:51,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-29 08:09:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:51,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:52,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:52,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:09:52,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:52,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-29 08:09:52,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:52,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:52,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:52,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:52,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:09:52,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:52,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-29 08:09:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:52,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:52,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:52,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:09:52,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:52,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 08:09:52,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:52,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:52,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:52,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:09:52,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:52,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:52,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1221 [2020-10-29 08:09:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:52,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:52,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:52,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:09:52,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:52,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:09:52,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:52,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:09:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:52,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:54,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3287 backedges. 1068 proven. 283 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2020-10-29 08:09:54,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870756131] [2020-10-29 08:09:54,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:54,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:09:54,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828006068] [2020-10-29 08:09:54,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:09:54,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:54,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:09:54,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:09:54,052 INFO L87 Difference]: Start difference. First operand 13017 states and 13690 transitions. Second operand 8 states. [2020-10-29 08:10:00,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:10:00,402 INFO L93 Difference]: Finished difference Result 26723 states and 28078 transitions. [2020-10-29 08:10:00,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:10:00,402 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1337 [2020-10-29 08:10:00,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:10:00,442 INFO L225 Difference]: With dead ends: 26723 [2020-10-29 08:10:00,442 INFO L226 Difference]: Without dead ends: 14388 [2020-10-29 08:10:00,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:10:00,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14388 states. [2020-10-29 08:10:00,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14388 to 13365. [2020-10-29 08:10:00,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13365 states. [2020-10-29 08:10:00,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13365 states to 13365 states and 14029 transitions. [2020-10-29 08:10:00,713 INFO L78 Accepts]: Start accepts. Automaton has 13365 states and 14029 transitions. Word has length 1337 [2020-10-29 08:10:00,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:10:00,714 INFO L481 AbstractCegarLoop]: Abstraction has 13365 states and 14029 transitions. [2020-10-29 08:10:00,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:10:00,715 INFO L276 IsEmpty]: Start isEmpty. Operand 13365 states and 14029 transitions. [2020-10-29 08:10:00,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1361 [2020-10-29 08:10:00,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:10:00,745 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:10:00,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:10:00,746 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:10:00,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:10:00,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1039444, now seen corresponding path program 1 times [2020-10-29 08:10:00,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:10:00,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618369731] [2020-10-29 08:10:00,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:10:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:01,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:01,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:01,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:02,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:02,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:06,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:06,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1388 [2020-10-29 08:10:06,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:10:06,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 08:10:06,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:06,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:06,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:06,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1043 [2020-10-29 08:10:06,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:10:06,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:06,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:10:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:06,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:06,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:06,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:10:06,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:06,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:10:06,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:06,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:06,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:06,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:06,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:06,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:06,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:10:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:06,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:06,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:06,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:10:06,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:06,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:10:06,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:06,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:06,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:06,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:06,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:06,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:06,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:10:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:06,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:06,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:06,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:10:06,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:06,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:10:06,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:06,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:06,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:06,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:06,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:06,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:06,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:10:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:06,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:06,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:06,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:10:06,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:06,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:10:06,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:06,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:06,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:06,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:10:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:06,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:06,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:06,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 08:10:06,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:06,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:10:06,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:06,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:06,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:06,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-29 08:10:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:06,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:06,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:06,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:10:06,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:06,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:10:06,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:06,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:06,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:06,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 777 [2020-10-29 08:10:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:06,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:06,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:06,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:10:06,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:06,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:10:06,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:06,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:06,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:06,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 919 [2020-10-29 08:10:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:06,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:06,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:06,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:10:06,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:06,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:10:06,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:06,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:06,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:06,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:06,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:10:06,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:06,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-29 08:10:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:06,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:07,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:07,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:10:07,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:07,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-29 08:10:07,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:07,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-29 08:10:07,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:07,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1244 [2020-10-29 08:10:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:07,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:07,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:07,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:10:07,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:07,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:10:07,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:07,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:07,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:07,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:10:07,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:07,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:08,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4481 backedges. 1430 proven. 71 refuted. 0 times theorem prover too weak. 2980 trivial. 0 not checked. [2020-10-29 08:10:08,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618369731] [2020-10-29 08:10:08,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:10:08,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:10:08,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497463007] [2020-10-29 08:10:08,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:10:08,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:10:08,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:10:08,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:10:08,650 INFO L87 Difference]: Start difference. First operand 13365 states and 14029 transitions. Second operand 7 states. [2020-10-29 08:10:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:10:13,012 INFO L93 Difference]: Finished difference Result 26736 states and 28085 transitions. [2020-10-29 08:10:13,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:10:13,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1360 [2020-10-29 08:10:13,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:10:13,043 INFO L225 Difference]: With dead ends: 26736 [2020-10-29 08:10:13,044 INFO L226 Difference]: Without dead ends: 13706 [2020-10-29 08:10:13,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:10:13,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13706 states. [2020-10-29 08:10:13,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13706 to 13694. [2020-10-29 08:10:13,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13694 states. [2020-10-29 08:10:13,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13694 states to 13694 states and 14319 transitions. [2020-10-29 08:10:13,299 INFO L78 Accepts]: Start accepts. Automaton has 13694 states and 14319 transitions. Word has length 1360 [2020-10-29 08:10:13,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:10:13,300 INFO L481 AbstractCegarLoop]: Abstraction has 13694 states and 14319 transitions. [2020-10-29 08:10:13,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:10:13,300 INFO L276 IsEmpty]: Start isEmpty. Operand 13694 states and 14319 transitions. [2020-10-29 08:10:13,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1419 [2020-10-29 08:10:13,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:10:13,334 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:10:13,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:10:13,334 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:10:13,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:10:13,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1292963736, now seen corresponding path program 1 times [2020-10-29 08:10:13,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:10:13,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460005080] [2020-10-29 08:10:13,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:10:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:13,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:14,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:14,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:15,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:18,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:18,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1442 [2020-10-29 08:10:18,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:10:18,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-29 08:10:18,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:18,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:18,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:18,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 822 [2020-10-29 08:10:18,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:10:18,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:18,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:10:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:18,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:18,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:18,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:10:18,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:18,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:10:18,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:18,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:18,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:18,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:10:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:18,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:19,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:19,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:10:19,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:19,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:10:19,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:19,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:19,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:19,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:19,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:19,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:19,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:10:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:19,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:19,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:19,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:10:19,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:19,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:10:19,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:19,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:19,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:19,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:19,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:19,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:19,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:10:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:19,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:19,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:19,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:10:19,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:19,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:10:19,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:19,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:19,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:19,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:10:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:19,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:19,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:19,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-29 08:10:19,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:19,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-29 08:10:19,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:19,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-29 08:10:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:19,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 814 [2020-10-29 08:10:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:19,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:19,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:19,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:10:19,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:19,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-29 08:10:19,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:19,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:19,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:19,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:19,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:10:19,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:20,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-29 08:10:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:20,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:20,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:20,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:10:20,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:20,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 08:10:20,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:20,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:20,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:20,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:10:20,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:20,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:20,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1302 [2020-10-29 08:10:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:20,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:20,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:20,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:10:20,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:20,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:10:20,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:20,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:10:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:20,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3429 backedges. 1146 proven. 283 refuted. 0 times theorem prover too weak. 2000 trivial. 0 not checked. [2020-10-29 08:10:21,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460005080] [2020-10-29 08:10:21,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:10:21,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:10:21,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402154774] [2020-10-29 08:10:21,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:10:21,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:10:21,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:10:21,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:10:21,916 INFO L87 Difference]: Start difference. First operand 13694 states and 14319 transitions. Second operand 7 states. [2020-10-29 08:10:26,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:10:26,180 INFO L93 Difference]: Finished difference Result 26716 states and 27952 transitions. [2020-10-29 08:10:26,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:10:26,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1418 [2020-10-29 08:10:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:10:26,209 INFO L225 Difference]: With dead ends: 26716 [2020-10-29 08:10:26,209 INFO L226 Difference]: Without dead ends: 13704 [2020-10-29 08:10:26,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:10:26,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13704 states. [2020-10-29 08:10:26,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13704 to 13694. [2020-10-29 08:10:26,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13694 states. [2020-10-29 08:10:26,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13694 states to 13694 states and 14311 transitions. [2020-10-29 08:10:26,469 INFO L78 Accepts]: Start accepts. Automaton has 13694 states and 14311 transitions. Word has length 1418 [2020-10-29 08:10:26,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:10:26,470 INFO L481 AbstractCegarLoop]: Abstraction has 13694 states and 14311 transitions. [2020-10-29 08:10:26,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:10:26,471 INFO L276 IsEmpty]: Start isEmpty. Operand 13694 states and 14311 transitions. [2020-10-29 08:10:26,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1474 [2020-10-29 08:10:26,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:10:26,502 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:10:26,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:10:26,503 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:10:26,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:10:26,504 INFO L82 PathProgramCache]: Analyzing trace with hash -534292298, now seen corresponding path program 1 times [2020-10-29 08:10:26,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:10:26,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413994338] [2020-10-29 08:10:26,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:10:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:26,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:27,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:27,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:27,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:29,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:31,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:31,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1499 [2020-10-29 08:10:31,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:10:31,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-29 08:10:31,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:31,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:31,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:31,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 615 [2020-10-29 08:10:31,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-29 08:10:31,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:10:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:10:32,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:10:32,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:32,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:32,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:32,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:10:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:10:32,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:10:32,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:32,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:32,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:32,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:10:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:10:32,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:10:32,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:32,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:32,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:32,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:10:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:10:32,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:10:32,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:32,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:10:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:10:32,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:10:32,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:32,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:32,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:10:32,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:10:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:10:32,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-29 08:10:32,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:32,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:32,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-29 08:10:32,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 869 [2020-10-29 08:10:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:33,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:33,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:10:33,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:33,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 08:10:33,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:33,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-29 08:10:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:33,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:33,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1142 [2020-10-29 08:10:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:33,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:33,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:33,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:10:33,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:33,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 08:10:33,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:33,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:10:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:33,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:33,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1357 [2020-10-29 08:10:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:33,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:33,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:33,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:10:33,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:33,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:10:33,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:33,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:33,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:33,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:10:33,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:33,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0