/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/Problem18_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:36:56,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:36:56,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:36:56,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:36:56,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:36:56,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:36:56,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:36:56,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:36:56,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:36:56,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:36:56,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:36:56,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:36:56,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:36:56,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:36:56,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:36:56,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:36:56,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:36:56,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:36:56,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:36:56,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:36:56,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:36:56,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:36:56,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:36:56,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:36:56,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:36:56,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:36:56,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:36:56,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:36:56,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:36:56,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:36:56,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:36:56,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:36:56,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:36:56,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:36:56,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:36:56,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:36:56,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:36:56,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:36:56,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:36:56,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:36:56,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:36:56,671 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 08:36:56,700 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:36:56,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:36:56,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:36:56,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:36:56,703 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:36:56,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:36:56,704 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:36:56,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:36:56,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:36:56,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:36:56,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:36:56,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:36:56,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:36:56,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:36:56,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:36:56,706 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:36:56,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:36:56,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:36:56,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:36:56,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:36:56,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:36:56,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:36:56,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:36:56,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:36:56,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:36:56,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:36:56,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:36:56,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:36:56,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:36:56,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:36:57,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:36:57,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:36:57,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:36:57,150 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:36:57,150 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:36:57,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label39.c [2020-10-29 08:36:57,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fac44726/d4b16835cdd3413684377fda63ca683b/FLAGf9a27fdac [2020-10-29 08:36:58,243 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:36:58,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label39.c [2020-10-29 08:36:58,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fac44726/d4b16835cdd3413684377fda63ca683b/FLAGf9a27fdac [2020-10-29 08:36:58,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fac44726/d4b16835cdd3413684377fda63ca683b [2020-10-29 08:36:58,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:36:58,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:36:58,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:36:58,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:36:58,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:36:58,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:36:58" (1/1) ... [2020-10-29 08:36:58,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cff812e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:36:58, skipping insertion in model container [2020-10-29 08:36:58,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:36:58" (1/1) ... [2020-10-29 08:36:58,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:36:58,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:37:00,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:37:00,154 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:37:00,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:37:00,798 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:37:00,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:37:00 WrapperNode [2020-10-29 08:37:00,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:37:00,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:37:00,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:37:00,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:37:00,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:37:00" (1/1) ... [2020-10-29 08:37:00,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:37:00" (1/1) ... [2020-10-29 08:37:00,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:37:00" (1/1) ... [2020-10-29 08:37:00,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:37:00" (1/1) ... [2020-10-29 08:37:01,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:37:00" (1/1) ... [2020-10-29 08:37:01,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:37:00" (1/1) ... [2020-10-29 08:37:01,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:37:00" (1/1) ... [2020-10-29 08:37:01,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:37:01,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:37:01,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:37:01,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:37:01,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:37:00" (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 08:37:01,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:37:01,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:37:01,210 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:37:01,210 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:37:01,210 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:37:01,211 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-29 08:37:01,211 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:37:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:37:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:37:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-29 08:37:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:37:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:37:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:37:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:37:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:37:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:37:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:37:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:37:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:37:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:37:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:37:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:37:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:37:05,549 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:37:05,550 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:37:05,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:37:05 BoogieIcfgContainer [2020-10-29 08:37:05,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:37:05,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:37:05,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:37:05,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:37:05,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:36:58" (1/3) ... [2020-10-29 08:37:05,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e69e204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:37:05, skipping insertion in model container [2020-10-29 08:37:05,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:37:00" (2/3) ... [2020-10-29 08:37:05,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e69e204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:37:05, skipping insertion in model container [2020-10-29 08:37:05,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:37:05" (3/3) ... [2020-10-29 08:37:05,566 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label39.c [2020-10-29 08:37:05,579 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:37:05,585 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:37:05,599 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:37:05,634 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:37:05,634 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:37:05,635 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:37:05,635 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:37:05,635 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:37:05,635 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:37:05,635 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:37:05,635 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:37:05,671 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-29 08:37:05,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-29 08:37:05,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:37:05,681 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] [2020-10-29 08:37:05,681 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:37:05,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:37:05,695 INFO L82 PathProgramCache]: Analyzing trace with hash -2126908456, now seen corresponding path program 1 times [2020-10-29 08:37:05,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:37:05,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952667519] [2020-10-29 08:37:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:37:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:05,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:06,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:06,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 08:37:06,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:06,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-10-29 08:37:06,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:06,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:37:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:37:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 08:37:06,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:37:06,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:37:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:06,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:06,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:06,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:37:06,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:06,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:37:06,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:06,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:06,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:37:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:37:06,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:37:06,532 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 08:37:06,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952667519] [2020-10-29 08:37:06,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:37:06,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:37:06,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238829873] [2020-10-29 08:37:06,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:37:06,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:37:06,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:37:06,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:37:06,570 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 4 states. [2020-10-29 08:37:16,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:37:16,103 INFO L93 Difference]: Finished difference Result 2275 states and 4355 transitions. [2020-10-29 08:37:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:37:16,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-29 08:37:16,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:37:16,156 INFO L225 Difference]: With dead ends: 2275 [2020-10-29 08:37:16,156 INFO L226 Difference]: Without dead ends: 1433 [2020-10-29 08:37:16,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:37:16,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-10-29 08:37:16,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1426. [2020-10-29 08:37:16,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-10-29 08:37:16,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2332 transitions. [2020-10-29 08:37:16,319 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2332 transitions. Word has length 20 [2020-10-29 08:37:16,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:37:16,320 INFO L481 AbstractCegarLoop]: Abstraction has 1426 states and 2332 transitions. [2020-10-29 08:37:16,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:37:16,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2332 transitions. [2020-10-29 08:37:16,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 08:37:16,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:37:16,325 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 08:37:16,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:37:16,326 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:37:16,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:37:16,326 INFO L82 PathProgramCache]: Analyzing trace with hash -702306304, now seen corresponding path program 1 times [2020-10-29 08:37:16,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:37:16,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915988950] [2020-10-29 08:37:16,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:37:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:16,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:16,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:17,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:17,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 08:37:17,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:37:17,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-10-29 08:37:17,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:17,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:17,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:37:17,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:37:17,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 08:37:17,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:37:17,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:37:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:17,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:17,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:17,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:37:17,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:17,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:37:17,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:17,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:17,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:37:17,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:17,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:37:17,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:37:17,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:37:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:17,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:17,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:17,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:37:17,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:17,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-29 08:37:17,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:17,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:17,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:37:17,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:37:17,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 08:37:17,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:37:17,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915988950] [2020-10-29 08:37:17,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:37:17,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:37:17,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349090636] [2020-10-29 08:37:17,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:37:17,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:37:17,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:37:17,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:37:17,773 INFO L87 Difference]: Start difference. First operand 1426 states and 2332 transitions. Second operand 7 states. [2020-10-29 08:37:30,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:37:30,287 INFO L93 Difference]: Finished difference Result 4331 states and 7099 transitions. [2020-10-29 08:37:30,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:37:30,291 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-29 08:37:30,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:37:30,307 INFO L225 Difference]: With dead ends: 4331 [2020-10-29 08:37:30,308 INFO L226 Difference]: Without dead ends: 2911 [2020-10-29 08:37:30,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:37:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2020-10-29 08:37:30,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2865. [2020-10-29 08:37:30,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2865 states. [2020-10-29 08:37:30,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 4082 transitions. [2020-10-29 08:37:30,427 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 4082 transitions. Word has length 90 [2020-10-29 08:37:30,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:37:30,428 INFO L481 AbstractCegarLoop]: Abstraction has 2865 states and 4082 transitions. [2020-10-29 08:37:30,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:37:30,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 4082 transitions. [2020-10-29 08:37:30,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-29 08:37:30,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:37:30,433 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:37:30,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:37:30,433 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:37:30,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:37:30,434 INFO L82 PathProgramCache]: Analyzing trace with hash 154511742, now seen corresponding path program 1 times [2020-10-29 08:37:30,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:37:30,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401788997] [2020-10-29 08:37:30,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:37:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:30,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:30,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:32,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:32,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 08:37:32,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:37:32,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1554 [2020-10-29 08:37:32,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:32,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:32,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:37:32,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:37:32,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 08:37:32,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:32,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:37:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:32,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:32,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:32,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:37:32,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:32,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:37:32,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:32,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:32,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:37:32,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:32,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:37:32,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:32,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:37:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:32,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:32,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:32,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 08:37:32,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:32,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-29 08:37:32,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:32,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:37:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:37:32,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-29 08:37:32,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:37:32,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401788997] [2020-10-29 08:37:32,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:37:32,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:37:32,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016218140] [2020-10-29 08:37:32,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:37:32,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:37:32,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:37:32,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:37:32,692 INFO L87 Difference]: Start difference. First operand 2865 states and 4082 transitions. Second operand 7 states. [2020-10-29 08:37:43,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:37:43,368 INFO L93 Difference]: Finished difference Result 6587 states and 9367 transitions. [2020-10-29 08:37:43,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:37:43,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-29 08:37:43,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:37:43,392 INFO L225 Difference]: With dead ends: 6587 [2020-10-29 08:37:43,392 INFO L226 Difference]: Without dead ends: 3728 [2020-10-29 08:37:43,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:37:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3728 states. [2020-10-29 08:37:43,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3728 to 3590. [2020-10-29 08:37:43,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3590 states. [2020-10-29 08:37:43,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 4875 transitions. [2020-10-29 08:37:43,550 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 4875 transitions. Word has length 117 [2020-10-29 08:37:43,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:37:43,551 INFO L481 AbstractCegarLoop]: Abstraction has 3590 states and 4875 transitions. [2020-10-29 08:37:43,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:37:43,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 4875 transitions. [2020-10-29 08:37:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-29 08:37:43,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:37:43,554 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:37:43,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:37:43,554 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:37:43,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:37:43,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1739198354, now seen corresponding path program 1 times [2020-10-29 08:37:43,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:37:43,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800555239] [2020-10-29 08:37:43,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:37:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:43,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:43,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:44,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:44,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 08:37:44,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:37:44,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 727 [2020-10-29 08:37:44,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:44,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:37:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:37:44,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:37:44,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:44,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:37:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:44,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:44,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:44,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:37:44,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:44,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:37:44,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:44,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:44,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:37:44,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:44,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:37:44,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:44,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:37:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:44,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:44,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:44,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 08:37:44,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:44,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-29 08:37:44,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:44,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:44,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:37:44,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:37:44,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 08:37:44,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:44,796 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:37:44,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800555239] [2020-10-29 08:37:44,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:37:44,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:37:44,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313264887] [2020-10-29 08:37:44,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:37:44,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:37:44,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:37:44,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:37:44,800 INFO L87 Difference]: Start difference. First operand 3590 states and 4875 transitions. Second operand 7 states. [2020-10-29 08:37:56,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:37:56,549 INFO L93 Difference]: Finished difference Result 8724 states and 12373 transitions. [2020-10-29 08:37:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:37:56,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-10-29 08:37:56,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:37:56,579 INFO L225 Difference]: With dead ends: 8724 [2020-10-29 08:37:56,580 INFO L226 Difference]: Without dead ends: 5140 [2020-10-29 08:37:56,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:37:56,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5140 states. [2020-10-29 08:37:56,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5140 to 5041. [2020-10-29 08:37:56,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5041 states. [2020-10-29 08:37:56,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5041 states to 5041 states and 6319 transitions. [2020-10-29 08:37:56,737 INFO L78 Accepts]: Start accepts. Automaton has 5041 states and 6319 transitions. Word has length 125 [2020-10-29 08:37:56,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:37:56,739 INFO L481 AbstractCegarLoop]: Abstraction has 5041 states and 6319 transitions. [2020-10-29 08:37:56,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:37:56,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5041 states and 6319 transitions. [2020-10-29 08:37:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-29 08:37:56,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:37:56,754 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:37:56,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:37:56,755 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:37:56,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:37:56,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1688547688, now seen corresponding path program 1 times [2020-10-29 08:37:56,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:37:56,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874956058] [2020-10-29 08:37:56,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:37:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:56,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:57,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:57,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-29 08:37:57,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:57,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-29 08:37:57,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:57,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:37:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:37:57,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 08:37:57,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:37:57,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:37:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:57,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:57,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:57,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:37:57,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:57,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:37:57,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:57,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:37:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:37:57,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:57,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:37:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:37:57,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:37:57,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:37:57,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 08:37:57,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:37:57,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 08:37:57,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:37:57,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:37:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:37:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:37:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-29 08:37:57,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:37:57,638 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:37:57,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874956058] [2020-10-29 08:37:57,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:37:57,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:37:57,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779694548] [2020-10-29 08:37:57,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:37:57,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:37:57,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:37:57,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:37:57,643 INFO L87 Difference]: Start difference. First operand 5041 states and 6319 transitions. Second operand 5 states. [2020-10-29 08:38:09,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:38:09,012 INFO L93 Difference]: Finished difference Result 10105 states and 13431 transitions. [2020-10-29 08:38:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:38:09,014 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 206 [2020-10-29 08:38:09,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:38:09,034 INFO L225 Difference]: With dead ends: 10105 [2020-10-29 08:38:09,035 INFO L226 Difference]: Without dead ends: 4336 [2020-10-29 08:38:09,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 08:38:09,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2020-10-29 08:38:09,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 4319. [2020-10-29 08:38:09,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4319 states. [2020-10-29 08:38:09,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4319 states to 4319 states and 4947 transitions. [2020-10-29 08:38:09,152 INFO L78 Accepts]: Start accepts. Automaton has 4319 states and 4947 transitions. Word has length 206 [2020-10-29 08:38:09,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:38:09,152 INFO L481 AbstractCegarLoop]: Abstraction has 4319 states and 4947 transitions. [2020-10-29 08:38:09,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:38:09,153 INFO L276 IsEmpty]: Start isEmpty. Operand 4319 states and 4947 transitions. [2020-10-29 08:38:09,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2020-10-29 08:38:09,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:38:09,161 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:09,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:38:09,161 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:38:09,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:38:09,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1032561538, now seen corresponding path program 1 times [2020-10-29 08:38:09,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:38:09,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256590783] [2020-10-29 08:38:09,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:38:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:09,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:09,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:10,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:14,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:14,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 414 [2020-10-29 08:38:14,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:38:14,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 08:38:14,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:14,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:14,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:38:14,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:38:14,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-29 08:38:14,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:14,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:38:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:14,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:14,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:14,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:38:14,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:14,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:38:14,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:14,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:14,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:14,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:14,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:38:14,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:14,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:38:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:14,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:15,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:15,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:38:15,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:15,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-29 08:38:15,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:15,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:38:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:38:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-29 08:38:15,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:15,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:38:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:15,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:15,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:15,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:38:15,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:15,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 08:38:15,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:15,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:15,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:38:15,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:38:15,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 08:38:15,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:38:15,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-29 08:38:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:15,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:15,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:15,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:38:15,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:15,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:38:15,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:15,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:15,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:15,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:38:15,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:15,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:38:16,154 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 24 proven. 66 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 08:38:16,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256590783] [2020-10-29 08:38:16,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:38:16,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:38:16,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508218131] [2020-10-29 08:38:16,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:38:16,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:38:16,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:38:16,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:38:16,161 INFO L87 Difference]: Start difference. First operand 4319 states and 4947 transitions. Second operand 8 states. [2020-10-29 08:38:26,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:38:26,304 INFO L93 Difference]: Finished difference Result 12417 states and 14609 transitions. [2020-10-29 08:38:26,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:38:26,306 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 398 [2020-10-29 08:38:26,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:38:26,343 INFO L225 Difference]: With dead ends: 12417 [2020-10-29 08:38:26,343 INFO L226 Difference]: Without dead ends: 8806 [2020-10-29 08:38:26,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:38:26,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8806 states. [2020-10-29 08:38:26,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8806 to 8792. [2020-10-29 08:38:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8792 states. [2020-10-29 08:38:26,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8792 states to 8792 states and 10055 transitions. [2020-10-29 08:38:26,557 INFO L78 Accepts]: Start accepts. Automaton has 8792 states and 10055 transitions. Word has length 398 [2020-10-29 08:38:26,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:38:26,557 INFO L481 AbstractCegarLoop]: Abstraction has 8792 states and 10055 transitions. [2020-10-29 08:38:26,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:38:26,558 INFO L276 IsEmpty]: Start isEmpty. Operand 8792 states and 10055 transitions. [2020-10-29 08:38:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2020-10-29 08:38:26,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:38:26,626 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:26,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:38:26,627 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:38:26,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:38:26,628 INFO L82 PathProgramCache]: Analyzing trace with hash -2120080832, now seen corresponding path program 1 times [2020-10-29 08:38:26,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:38:26,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682424468] [2020-10-29 08:38:26,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:38:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:26,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:27,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:28,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:31,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:31,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 947 [2020-10-29 08:38:31,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:38:31,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-29 08:38:31,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:31,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:31,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 08:38:31,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:38:31,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 921 [2020-10-29 08:38:31,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:38:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:32,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:32,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:32,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:38:32,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:32,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:38:32,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:32,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:38:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:32,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:38:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:32,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:32,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:33,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:33,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:38:33,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:38:33,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1464 [2020-10-29 08:38:33,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:33,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:33,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 520 [2020-10-29 08:38:33,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:33,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:38:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:33,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:34,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:34,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:38:34,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:34,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-29 08:38:34,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:34,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:34,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:34,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-29 08:38:34,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:34,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:38:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:34,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:34,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:34,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:38:34,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:34,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:38:34,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:34,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:34,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:34,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:34,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 08:38:34,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:34,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:38:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:34,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:34,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:35,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:35,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:38:35,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:38:35,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-10-29 08:38:35,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:35,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:35,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:35,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:35,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:38:35,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:35,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:38:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:35,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:35,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:35,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:38:35,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:35,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:38:35,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:35,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:35,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:35,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:35,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:38:35,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:35,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:38:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:35,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:35,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:35,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:38:35,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:35,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:38:35,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:35,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:35,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:38:35,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:38:35,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 08:38:35,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:35,709 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 166 proven. 4 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2020-10-29 08:38:35,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682424468] [2020-10-29 08:38:35,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:38:35,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:38:35,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726694840] [2020-10-29 08:38:35,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:38:35,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:38:35,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:38:35,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:38:35,712 INFO L87 Difference]: Start difference. First operand 8792 states and 10055 transitions. Second operand 7 states. [2020-10-29 08:38:43,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:38:43,940 INFO L93 Difference]: Finished difference Result 19207 states and 22383 transitions. [2020-10-29 08:38:43,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:38:43,941 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 925 [2020-10-29 08:38:43,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:38:43,982 INFO L225 Difference]: With dead ends: 19207 [2020-10-29 08:38:43,983 INFO L226 Difference]: Without dead ends: 11833 [2020-10-29 08:38:44,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:38:44,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11833 states. [2020-10-29 08:38:44,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11833 to 11779. [2020-10-29 08:38:44,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11779 states. [2020-10-29 08:38:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11779 states to 11779 states and 13414 transitions. [2020-10-29 08:38:44,325 INFO L78 Accepts]: Start accepts. Automaton has 11779 states and 13414 transitions. Word has length 925 [2020-10-29 08:38:44,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:38:44,327 INFO L481 AbstractCegarLoop]: Abstraction has 11779 states and 13414 transitions. [2020-10-29 08:38:44,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:38:44,327 INFO L276 IsEmpty]: Start isEmpty. Operand 11779 states and 13414 transitions. [2020-10-29 08:38:44,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2020-10-29 08:38:44,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:38:44,380 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:44,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:38:44,380 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:38:44,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:38:44,382 INFO L82 PathProgramCache]: Analyzing trace with hash -124582592, now seen corresponding path program 1 times [2020-10-29 08:38:44,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:38:44,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306271458] [2020-10-29 08:38:44,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:38:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:44,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:48,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:48,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1039 [2020-10-29 08:38:48,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:38:48,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3934 [2020-10-29 08:38:48,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:48,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:48,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:38:48,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:38:48,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 08:38:48,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:48,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:38:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:48,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:48,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:48,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:38:48,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:48,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:38:48,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:48,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:48,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:48,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:48,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:48,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:48,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:38:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:48,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:49,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:49,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:38:49,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:49,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:38:49,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:49,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:49,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:49,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:49,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:49,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:49,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:38:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:49,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:49,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:49,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:38:49,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:49,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:38:49,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:49,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:49,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:49,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:38:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:49,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:49,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:49,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:38:49,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:49,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:38:49,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:49,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:49,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:49,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:38:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:49,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:49,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:49,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:38:49,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:49,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-29 08:38:49,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:49,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:49,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:49,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:49,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:38:49,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:49,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:38:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:49,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:49,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:49,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:38:49,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:49,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:38:49,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:49,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:49,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:38:49,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:49,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:38:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:49,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:49,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:49,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:38:49,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:49,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:38:49,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:49,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:38:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:38:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 08:38:49,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:50,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-29 08:38:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:50,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:50,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:50,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:38:50,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:50,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 08:38:50,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:50,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:38:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:38:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:38:50,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:38:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 238 proven. 70 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2020-10-29 08:38:50,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306271458] [2020-10-29 08:38:50,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:38:50,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:38:50,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141930288] [2020-10-29 08:38:50,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:38:50,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:38:50,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:38:50,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:38:50,672 INFO L87 Difference]: Start difference. First operand 11779 states and 13414 transitions. Second operand 7 states. [2020-10-29 08:38:59,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:38:59,642 INFO L93 Difference]: Finished difference Result 31656 states and 37194 transitions. [2020-10-29 08:38:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:38:59,643 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1015 [2020-10-29 08:38:59,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:38:59,721 INFO L225 Difference]: With dead ends: 31656 [2020-10-29 08:38:59,721 INFO L226 Difference]: Without dead ends: 21295 [2020-10-29 08:38:59,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 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 08:38:59,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21295 states. [2020-10-29 08:39:00,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21295 to 21213. [2020-10-29 08:39:00,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21213 states. [2020-10-29 08:39:00,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21213 states to 21213 states and 24257 transitions. [2020-10-29 08:39:00,148 INFO L78 Accepts]: Start accepts. Automaton has 21213 states and 24257 transitions. Word has length 1015 [2020-10-29 08:39:00,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:00,150 INFO L481 AbstractCegarLoop]: Abstraction has 21213 states and 24257 transitions. [2020-10-29 08:39:00,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:39:00,150 INFO L276 IsEmpty]: Start isEmpty. Operand 21213 states and 24257 transitions. [2020-10-29 08:39:00,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1068 [2020-10-29 08:39:00,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:00,166 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:00,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:39:00,167 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:00,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:00,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1169186776, now seen corresponding path program 1 times [2020-10-29 08:39:00,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:00,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867382731] [2020-10-29 08:39:00,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:00,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:01,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:01,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:05,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:05,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1091 [2020-10-29 08:39:05,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:39:05,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-29 08:39:05,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:05,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:39:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-29 08:39:05,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:05,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:05,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:05,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:05,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:05,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:05,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:39:05,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:05,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:05,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:05,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:05,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:05,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:05,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:39:05,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:05,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-29 08:39:05,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:05,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:05,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:05,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:39:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:05,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:05,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:05,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:39:05,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:39:05,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:05,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:06,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:39:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:06,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:06,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:06,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:39:06,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:06,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:39:06,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:06,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:06,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:06,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:06,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:06,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:06,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:39:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:06,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:06,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:06,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:39:06,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:06,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-29 08:39:06,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:06,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:39:06,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:06,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:39:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:06,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:06,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:06,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:39:06,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:06,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:39:06,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:06,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:39:06,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:06,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:39:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:06,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:06,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:06,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:39:06,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:06,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-29 08:39:06,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:06,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:39:06,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:06,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-29 08:39:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:06,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:07,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:07,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:39:07,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:07,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:39:07,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:07,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:07,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:07,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:39:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:07,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:07,732 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 342 proven. 70 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2020-10-29 08:39:07,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867382731] [2020-10-29 08:39:07,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:39:07,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:39:07,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015861047] [2020-10-29 08:39:07,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:39:07,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:07,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:39:07,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:39:07,735 INFO L87 Difference]: Start difference. First operand 21213 states and 24257 transitions. Second operand 7 states. [2020-10-29 08:39:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:16,374 INFO L93 Difference]: Finished difference Result 50422 states and 59027 transitions. [2020-10-29 08:39:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:39:16,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1067 [2020-10-29 08:39:16,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:16,465 INFO L225 Difference]: With dead ends: 50422 [2020-10-29 08:39:16,465 INFO L226 Difference]: Without dead ends: 30627 [2020-10-29 08:39:16,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:39:16,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30627 states. [2020-10-29 08:39:17,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30627 to 30564. [2020-10-29 08:39:17,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30564 states. [2020-10-29 08:39:17,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30564 states to 30564 states and 35580 transitions. [2020-10-29 08:39:17,094 INFO L78 Accepts]: Start accepts. Automaton has 30564 states and 35580 transitions. Word has length 1067 [2020-10-29 08:39:17,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:17,096 INFO L481 AbstractCegarLoop]: Abstraction has 30564 states and 35580 transitions. [2020-10-29 08:39:17,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:39:17,096 INFO L276 IsEmpty]: Start isEmpty. Operand 30564 states and 35580 transitions. [2020-10-29 08:39:17,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1104 [2020-10-29 08:39:17,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:17,114 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:17,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:39:17,114 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:17,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:17,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1033005040, now seen corresponding path program 1 times [2020-10-29 08:39:17,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:17,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534163756] [2020-10-29 08:39:17,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:17,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:17,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:19,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:20,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:22,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:22,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1127 [2020-10-29 08:39:22,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:39:22,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5136 [2020-10-29 08:39:22,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:22,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:39:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 08:39:22,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:22,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:22,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:22,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:22,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:22,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:39:22,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:22,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:22,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:22,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:22,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:22,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:22,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:39:22,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:22,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 08:39:22,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:22,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:22,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:22,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:22,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:22,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:23,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:39:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:23,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:23,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:23,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:39:23,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:23,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:39:23,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:23,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:23,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:23,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:23,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:23,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:23,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:39:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:23,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:23,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:23,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:39:23,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:23,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:39:23,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:23,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:23,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:23,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:23,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:23,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:23,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:39:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:23,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:23,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:23,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:39:23,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:23,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 08:39:23,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:23,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:39:23,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:23,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:39:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:23,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:23,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:23,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:39:23,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:23,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:39:23,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:23,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:39:23,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:23,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:39:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:23,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:23,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:23,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:39:23,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:23,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 08:39:23,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:23,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:39:23,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:23,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-29 08:39:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:23,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:23,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:23,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 08:39:23,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:39:23,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:23,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 08:39:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 302 proven. 121 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-10-29 08:39:24,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534163756] [2020-10-29 08:39:24,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:39:24,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:39:24,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839382234] [2020-10-29 08:39:24,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:39:24,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:24,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:39:24,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:39:24,623 INFO L87 Difference]: Start difference. First operand 30564 states and 35580 transitions. Second operand 7 states. [2020-10-29 08:39:34,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:34,759 INFO L93 Difference]: Finished difference Result 59834 states and 70014 transitions. [2020-10-29 08:39:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:39:34,760 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1103 [2020-10-29 08:39:34,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:34,852 INFO L225 Difference]: With dead ends: 59834 [2020-10-29 08:39:34,852 INFO L226 Difference]: Without dead ends: 30688 [2020-10-29 08:39:34,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:39:34,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30688 states. [2020-10-29 08:39:35,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30688 to 29915. [2020-10-29 08:39:35,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29915 states. [2020-10-29 08:39:35,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29915 states to 29915 states and 34152 transitions. [2020-10-29 08:39:35,470 INFO L78 Accepts]: Start accepts. Automaton has 29915 states and 34152 transitions. Word has length 1103 [2020-10-29 08:39:35,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:35,471 INFO L481 AbstractCegarLoop]: Abstraction has 29915 states and 34152 transitions. [2020-10-29 08:39:35,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:39:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand 29915 states and 34152 transitions. [2020-10-29 08:39:35,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1154 [2020-10-29 08:39:35,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:35,491 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:35,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:39:35,491 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:35,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:35,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1889479969, now seen corresponding path program 1 times [2020-10-29 08:39:35,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:35,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963136362] [2020-10-29 08:39:35,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:35,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:36,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:38,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:39,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:40,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:40,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1179 [2020-10-29 08:39:40,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:39:40,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-29 08:39:40,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:40,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 856 [2020-10-29 08:39:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 08:39:40,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:41,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:41,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:41,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:41,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:41,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:41,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:39:41,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:41,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:41,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:41,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:41,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:41,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:41,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:39:41,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:39:41,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:41,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:41,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:39:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:41,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:41,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:41,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:39:41,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:41,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:39:41,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:41,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:41,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:41,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:41,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:41,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:41,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:39:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:41,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:41,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:41,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:39:41,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:41,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:39:41,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:41,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:41,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:41,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:41,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:41,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:41,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:39:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:41,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:41,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:41,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-29 08:39:41,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:41,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-29 08:39:41,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:41,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:41,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:41,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:41,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 308 [2020-10-29 08:39:41,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:42,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:39:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:42,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:42,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:42,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 08:39:42,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:42,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:39:42,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:42,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 08:39:42,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:42,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-29 08:39:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:42,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:42,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:42,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:39:42,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:42,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-29 08:39:42,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:42,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:39:42,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:42,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-29 08:39:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:42,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:42,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:42,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 08:39:42,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:39:42,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:42,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-29 08:39:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:42,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:42,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-29 08:39:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:42,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:42,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:42,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:39:42,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:42,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:39:42,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:42,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:42,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:42,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:39:42,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:42,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:43,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 322 proven. 166 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2020-10-29 08:39:43,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963136362] [2020-10-29 08:39:43,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:39:43,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:39:43,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752954681] [2020-10-29 08:39:43,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:39:43,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:43,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:39:43,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:39:43,087 INFO L87 Difference]: Start difference. First operand 29915 states and 34152 transitions. Second operand 7 states. [2020-10-29 08:39:51,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:51,692 INFO L93 Difference]: Finished difference Result 59921 states and 68596 transitions. [2020-10-29 08:39:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:39:51,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1153 [2020-10-29 08:39:51,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:51,772 INFO L225 Difference]: With dead ends: 59921 [2020-10-29 08:39:51,772 INFO L226 Difference]: Without dead ends: 31424 [2020-10-29 08:39:51,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:39:51,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31424 states. [2020-10-29 08:39:52,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31424 to 31347. [2020-10-29 08:39:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31347 states. [2020-10-29 08:39:52,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31347 states to 31347 states and 35694 transitions. [2020-10-29 08:39:52,394 INFO L78 Accepts]: Start accepts. Automaton has 31347 states and 35694 transitions. Word has length 1153 [2020-10-29 08:39:52,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:52,396 INFO L481 AbstractCegarLoop]: Abstraction has 31347 states and 35694 transitions. [2020-10-29 08:39:52,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:39:52,396 INFO L276 IsEmpty]: Start isEmpty. Operand 31347 states and 35694 transitions. [2020-10-29 08:39:52,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1159 [2020-10-29 08:39:52,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:52,413 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:52,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:39:52,413 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:52,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:52,414 INFO L82 PathProgramCache]: Analyzing trace with hash -46205030, now seen corresponding path program 1 times [2020-10-29 08:39:52,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:52,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665013931] [2020-10-29 08:39:52,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:52,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:53,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:55,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:55,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1184 [2020-10-29 08:39:55,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:39:55,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3077 [2020-10-29 08:39:55,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:55,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:55,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:55,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-29 08:39:55,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 08:39:55,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:55,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:55,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:55,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:55,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:55,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:55,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:39:55,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:55,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:55,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:55,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:55,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:55,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:55,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:56,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:56,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:56,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:39:56,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:56,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 08:39:56,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:56,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:56,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:56,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:56,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:56,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:56,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:39:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:56,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:56,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:56,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:39:56,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:56,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:39:56,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:56,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:56,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:56,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:39:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:56,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:56,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:56,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:39:56,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:56,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:39:56,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:56,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:56,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:56,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:39:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:56,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:56,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:56,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:39:56,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:56,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 08:39:56,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:56,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:56,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:56,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:56,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:56,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:56,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:39:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:56,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:56,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:56,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:39:56,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:56,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:39:56,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:56,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:56,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:56,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:39:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:56,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:56,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:56,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:39:56,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:56,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:39:56,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:56,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:56,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:56,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:56,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 08:39:56,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:56,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:39:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:56,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:56,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:56,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:39:56,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:56,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:39:56,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:56,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 08:39:56,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:56,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1075 [2020-10-29 08:39:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:56,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:56,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:56,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:39:56,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:56,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:39:56,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:56,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:39:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:56,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 343 proven. 70 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2020-10-29 08:39:57,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665013931] [2020-10-29 08:39:57,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:39:57,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:39:57,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611414521] [2020-10-29 08:39:57,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:39:57,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:57,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:39:57,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:39:57,462 INFO L87 Difference]: Start difference. First operand 31347 states and 35694 transitions. Second operand 7 states. [2020-10-29 08:40:09,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:09,418 INFO L93 Difference]: Finished difference Result 69862 states and 80985 transitions. [2020-10-29 08:40:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:40:09,420 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1158 [2020-10-29 08:40:09,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:09,519 INFO L225 Difference]: With dead ends: 69862 [2020-10-29 08:40:09,519 INFO L226 Difference]: Without dead ends: 39933 [2020-10-29 08:40:09,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 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 08:40:09,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39933 states. [2020-10-29 08:40:10,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39933 to 39205. [2020-10-29 08:40:10,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39205 states. [2020-10-29 08:40:10,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39205 states to 39205 states and 44792 transitions. [2020-10-29 08:40:10,165 INFO L78 Accepts]: Start accepts. Automaton has 39205 states and 44792 transitions. Word has length 1158 [2020-10-29 08:40:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:10,166 INFO L481 AbstractCegarLoop]: Abstraction has 39205 states and 44792 transitions. [2020-10-29 08:40:10,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:40:10,166 INFO L276 IsEmpty]: Start isEmpty. Operand 39205 states and 44792 transitions. [2020-10-29 08:40:10,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1180 [2020-10-29 08:40:10,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:10,182 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:10,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:40:10,183 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:10,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:10,183 INFO L82 PathProgramCache]: Analyzing trace with hash 141174464, now seen corresponding path program 1 times [2020-10-29 08:40:10,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:10,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104562918] [2020-10-29 08:40:10,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:10,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:10,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:13,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:13,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1205 [2020-10-29 08:40:13,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:40:13,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3266 [2020-10-29 08:40:13,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:13,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-29 08:40:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 08:40:13,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:13,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:40:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:13,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:13,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:13,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:40:13,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:13,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:40:13,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:13,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:13,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:13,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:13,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:13,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:13,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:40:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:13,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:13,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:13,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:40:13,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:13,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 08:40:13,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:13,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:13,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:14,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:14,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:14,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:14,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:40:14,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:14,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:40:14,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:14,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:14,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:14,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:14,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:14,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:14,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:40:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:14,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:14,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:14,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:40:14,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:14,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:40:14,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:14,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:14,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:14,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:14,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:14,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:14,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:40:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:14,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:14,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:14,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:40:14,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:14,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:40:14,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:14,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:14,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:14,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:14,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:14,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:14,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:14,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:14,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:40:14,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:14,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:40:14,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:14,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:14,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:14,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:40:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:14,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:14,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:14,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:40:14,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:14,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:40:14,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:14,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:14,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:14,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:14,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:14,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:14,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:40:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:14,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:14,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:14,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 08:40:14,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:40:14,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:14,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 08:40:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:14,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-29 08:40:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:14,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:14,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:14,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:40:14,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:14,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:40:14,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:14,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 08:40:14,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 347 proven. 2 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-10-29 08:40:15,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104562918] [2020-10-29 08:40:15,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:40:15,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:40:15,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208363631] [2020-10-29 08:40:15,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:40:15,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:40:15,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:40:15,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:40:15,552 INFO L87 Difference]: Start difference. First operand 39205 states and 44792 transitions. Second operand 7 states. [2020-10-29 08:40:30,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:30,384 INFO L93 Difference]: Finished difference Result 90489 states and 104972 transitions. [2020-10-29 08:40:30,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:40:30,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1179 [2020-10-29 08:40:30,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:30,554 INFO L225 Difference]: With dead ends: 90489 [2020-10-29 08:40:30,554 INFO L226 Difference]: Without dead ends: 52702 [2020-10-29 08:40:30,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:40:30,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52702 states. [2020-10-29 08:40:31,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52702 to 51288. [2020-10-29 08:40:31,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51288 states. [2020-10-29 08:40:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51288 states to 51288 states and 57970 transitions. [2020-10-29 08:40:31,732 INFO L78 Accepts]: Start accepts. Automaton has 51288 states and 57970 transitions. Word has length 1179 [2020-10-29 08:40:31,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:31,733 INFO L481 AbstractCegarLoop]: Abstraction has 51288 states and 57970 transitions. [2020-10-29 08:40:31,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:40:31,734 INFO L276 IsEmpty]: Start isEmpty. Operand 51288 states and 57970 transitions. [2020-10-29 08:40:31,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1212 [2020-10-29 08:40:31,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:31,751 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:31,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:40:31,751 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:31,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:31,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1142831660, now seen corresponding path program 1 times [2020-10-29 08:40:31,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:31,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62317314] [2020-10-29 08:40:31,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:32,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:33,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:33,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:37,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:37,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1237 [2020-10-29 08:40:37,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:40:37,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-29 08:40:37,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:37,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:37,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:37,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-29 08:40:37,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:40:37,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0