/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/Problem14_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:36:10,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:36:10,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:36:10,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:36:10,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:36:10,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:36:10,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:36:10,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:36:10,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:36:10,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:36:10,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:36:10,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:36:10,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:36:10,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:36:10,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:36:10,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:36:10,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:36:10,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:36:10,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:36:10,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:36:10,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:36:10,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:36:10,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:36:10,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:36:10,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:36:10,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:36:10,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:36:10,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:36:10,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:36:10,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:36:10,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:36:10,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:36:10,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:36:10,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:36:10,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:36:10,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:36:10,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:36:10,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:36:10,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:36:10,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:36:10,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:36:10,789 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 07:36:10,816 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:36:10,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:36:10,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:36:10,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:36:10,819 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:36:10,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:36:10,819 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:36:10,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:36:10,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:36:10,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:36:10,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:36:10,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:36:10,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:36:10,820 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:36:10,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:36:10,821 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:36:10,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:36:10,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:36:10,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:36:10,822 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:36:10,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:36:10,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:36:10,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:36:10,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:36:10,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:36:10,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:36:10,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:36:10,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:36:10,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:36:10,824 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:36:11,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:36:11,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:36:11,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:36:11,235 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:36:11,236 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:36:11,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label47.c [2020-10-29 07:36:11,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ae7f1cf2/2e4b904bc76e4bd7aba8ea55592368d1/FLAG15c15485c [2020-10-29 07:36:12,048 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:36:12,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label47.c [2020-10-29 07:36:12,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ae7f1cf2/2e4b904bc76e4bd7aba8ea55592368d1/FLAG15c15485c [2020-10-29 07:36:12,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ae7f1cf2/2e4b904bc76e4bd7aba8ea55592368d1 [2020-10-29 07:36:12,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:36:12,304 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:36:12,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:36:12,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:36:12,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:36:12,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:36:12" (1/1) ... [2020-10-29 07:36:12,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b36651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:36:12, skipping insertion in model container [2020-10-29 07:36:12,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:36:12" (1/1) ... [2020-10-29 07:36:12,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:36:12,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:36:12,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:36:12,989 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:36:13,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:36:13,262 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:36:13,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:36:13 WrapperNode [2020-10-29 07:36:13,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:36:13,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:36:13,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:36:13,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:36:13,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:36:13" (1/1) ... [2020-10-29 07:36:13,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:36:13" (1/1) ... [2020-10-29 07:36:13,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:36:13" (1/1) ... [2020-10-29 07:36:13,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:36:13" (1/1) ... [2020-10-29 07:36:13,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:36:13" (1/1) ... [2020-10-29 07:36:13,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:36:13" (1/1) ... [2020-10-29 07:36:13,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:36:13" (1/1) ... [2020-10-29 07:36:13,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:36:13,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:36:13,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:36:13,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:36:13,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:36:13" (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 07:36:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:36:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:36:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:36:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:36:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:36:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:36:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:36:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:36:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:36:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:36:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:36:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:36:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:36:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:36:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:36:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:36:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:36:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:36:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:36:15,020 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:36:15,020 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:36:15,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:36:15 BoogieIcfgContainer [2020-10-29 07:36:15,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:36:15,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:36:15,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:36:15,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:36:15,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:36:12" (1/3) ... [2020-10-29 07:36:15,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5631204f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:36:15, skipping insertion in model container [2020-10-29 07:36:15,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:36:13" (2/3) ... [2020-10-29 07:36:15,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5631204f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:36:15, skipping insertion in model container [2020-10-29 07:36:15,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:36:15" (3/3) ... [2020-10-29 07:36:15,032 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label47.c [2020-10-29 07:36:15,046 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:36:15,053 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:36:15,067 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:36:15,098 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:36:15,098 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:36:15,098 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:36:15,098 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:36:15,099 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:36:15,099 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:36:15,099 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:36:15,099 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:36:15,124 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-29 07:36:15,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-29 07:36:15,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:15,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:36:15,134 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:15,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:15,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1326675816, now seen corresponding path program 1 times [2020-10-29 07:36:15,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:15,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178134334] [2020-10-29 07:36:15,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:15,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:16,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:16,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 07:36:16,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:16,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 671 [2020-10-29 07:36:16,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:16,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:16,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:36:16,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:36:16,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 07:36:16,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:36:16,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:16,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:16,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:16,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:16,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:16,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:36:16,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:16,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:16,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:16,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:36:16,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:36:16,227 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 07:36:16,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178134334] [2020-10-29 07:36:16,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:36:16,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 07:36:16,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054737501] [2020-10-29 07:36:16,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:36:16,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:16,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:36:16,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:36:16,265 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-29 07:36:20,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:20,056 INFO L93 Difference]: Finished difference Result 891 states and 1618 transitions. [2020-10-29 07:36:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:36:20,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-10-29 07:36:20,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:20,082 INFO L225 Difference]: With dead ends: 891 [2020-10-29 07:36:20,082 INFO L226 Difference]: Without dead ends: 565 [2020-10-29 07:36:20,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:36:20,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-29 07:36:20,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 561. [2020-10-29 07:36:20,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-29 07:36:20,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 856 transitions. [2020-10-29 07:36:20,206 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 856 transitions. Word has length 40 [2020-10-29 07:36:20,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:20,207 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 856 transitions. [2020-10-29 07:36:20,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:36:20,208 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 856 transitions. [2020-10-29 07:36:20,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 07:36:20,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:20,214 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:36:20,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:36:20,214 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:20,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:20,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1403452804, now seen corresponding path program 1 times [2020-10-29 07:36:20,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:20,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319818917] [2020-10-29 07:36:20,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:20,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:20,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:20,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:21,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:21,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 07:36:21,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:36:21,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1432 [2020-10-29 07:36:21,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:21,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:36:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:36:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 07:36:21,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:36:21,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:21,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:21,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:21,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:21,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:21,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:36:21,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:21,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:21,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:36:21,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:21,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:21,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:21,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:21,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 07:36:21,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:21,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 07:36:21,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:21,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 07:36:21,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:36:22,120 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:36:22,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319818917] [2020-10-29 07:36:22,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:36:22,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:36:22,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526997862] [2020-10-29 07:36:22,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:36:22,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:22,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:36:22,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:36:22,125 INFO L87 Difference]: Start difference. First operand 561 states and 856 transitions. Second operand 7 states. [2020-10-29 07:36:24,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:24,872 INFO L93 Difference]: Finished difference Result 1682 states and 2596 transitions. [2020-10-29 07:36:24,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:36:24,872 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-29 07:36:24,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:24,881 INFO L225 Difference]: With dead ends: 1682 [2020-10-29 07:36:24,881 INFO L226 Difference]: Without dead ends: 1127 [2020-10-29 07:36:24,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:36:24,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-10-29 07:36:24,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 939. [2020-10-29 07:36:24,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2020-10-29 07:36:24,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1320 transitions. [2020-10-29 07:36:24,950 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1320 transitions. Word has length 109 [2020-10-29 07:36:24,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:24,951 INFO L481 AbstractCegarLoop]: Abstraction has 939 states and 1320 transitions. [2020-10-29 07:36:24,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:36:24,951 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1320 transitions. [2020-10-29 07:36:24,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-29 07:36:24,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:24,959 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:36:24,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:36:24,960 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:24,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:24,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1466877572, now seen corresponding path program 1 times [2020-10-29 07:36:24,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:24,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949119611] [2020-10-29 07:36:24,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:25,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:25,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:25,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:25,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:25,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-29 07:36:25,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:36:25,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 848 [2020-10-29 07:36:25,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:25,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:36:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:36:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 07:36:25,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:25,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:25,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:25,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:25,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:25,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:25,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:36:25,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:25,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:25,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:25,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:25,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:36:25,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:25,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:26,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:26,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:26,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 07:36:26,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:26,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 07:36:26,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:26,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 07:36:26,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:36:26,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949119611] [2020-10-29 07:36:26,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:36:26,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:36:26,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403498362] [2020-10-29 07:36:26,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:36:26,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:26,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:36:26,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:36:26,243 INFO L87 Difference]: Start difference. First operand 939 states and 1320 transitions. Second operand 7 states. [2020-10-29 07:36:29,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:29,012 INFO L93 Difference]: Finished difference Result 2658 states and 3883 transitions. [2020-10-29 07:36:29,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:36:29,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-10-29 07:36:29,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:29,024 INFO L225 Difference]: With dead ends: 2658 [2020-10-29 07:36:29,025 INFO L226 Difference]: Without dead ends: 1725 [2020-10-29 07:36:29,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:36:29,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2020-10-29 07:36:29,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1511. [2020-10-29 07:36:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1511 states. [2020-10-29 07:36:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 1990 transitions. [2020-10-29 07:36:29,094 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 1990 transitions. Word has length 112 [2020-10-29 07:36:29,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:29,095 INFO L481 AbstractCegarLoop]: Abstraction has 1511 states and 1990 transitions. [2020-10-29 07:36:29,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:36:29,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 1990 transitions. [2020-10-29 07:36:29,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-29 07:36:29,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:29,100 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:36:29,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:36:29,101 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:29,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:29,101 INFO L82 PathProgramCache]: Analyzing trace with hash 2059673628, now seen corresponding path program 1 times [2020-10-29 07:36:29,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:29,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137396638] [2020-10-29 07:36:29,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:29,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:29,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:29,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:29,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:31,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:32,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:32,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-29 07:36:32,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:36:32,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3662 [2020-10-29 07:36:32,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:32,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:32,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:36:32,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:36:32,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-29 07:36:32,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:32,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:32,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:32,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:32,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:32,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:32,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:36:32,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:32,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:36:32,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:32,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:33,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:33,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:33,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:36:33,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:33,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 07:36:33,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:33,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:33,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:33,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:33,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 07:36:33,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:33,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 07:36:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:33,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:33,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:33,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:36:33,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:33,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 07:36:33,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:33,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:33,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:33,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:33,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:36:33,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:36:33,608 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 65 proven. 78 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 07:36:33,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137396638] [2020-10-29 07:36:33,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:33,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:36:33,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982734081] [2020-10-29 07:36:33,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:36:33,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:33,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:36:33,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:36:33,611 INFO L87 Difference]: Start difference. First operand 1511 states and 1990 transitions. Second operand 8 states. [2020-10-29 07:36:36,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:36,632 INFO L93 Difference]: Finished difference Result 3280 states and 4496 transitions. [2020-10-29 07:36:36,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 07:36:36,632 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-10-29 07:36:36,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:36,651 INFO L225 Difference]: With dead ends: 3280 [2020-10-29 07:36:36,651 INFO L226 Difference]: Without dead ends: 1957 [2020-10-29 07:36:36,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-29 07:36:36,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states. [2020-10-29 07:36:36,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1881. [2020-10-29 07:36:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1881 states. [2020-10-29 07:36:36,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2414 transitions. [2020-10-29 07:36:36,755 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2414 transitions. Word has length 207 [2020-10-29 07:36:36,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:36,756 INFO L481 AbstractCegarLoop]: Abstraction has 1881 states and 2414 transitions. [2020-10-29 07:36:36,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:36:36,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2414 transitions. [2020-10-29 07:36:36,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-29 07:36:36,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:36,769 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:36:36,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 07:36:36,769 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:36,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:36,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1999914448, now seen corresponding path program 1 times [2020-10-29 07:36:36,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:36,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103117005] [2020-10-29 07:36:36,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:36,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:36,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:37,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:37,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:37,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:41,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:41,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:41,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:41,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-10-29 07:36:41,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 07:36:41,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-29 07:36:41,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:41,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 07:36:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:36:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-29 07:36:41,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:42,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:42,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:42,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:42,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:42,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:42,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:36:42,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:42,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:42,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:42,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:36:42,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:42,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:42,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:42,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:42,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:36:42,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:42,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-29 07:36:42,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:42,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:42,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:42,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:42,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 07:36:42,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:36:42,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 07:36:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:42,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:42,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:42,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:36:42,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:42,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 07:36:42,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:42,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:42,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:36:42,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:42,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 07:36:42,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:42,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-29 07:36:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:42,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:42,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:42,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:42,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:36:42,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:36:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-29 07:36:42,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:42,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:42,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:42,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:42,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:36:42,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 07:36:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 105 proven. 214 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-29 07:36:42,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103117005] [2020-10-29 07:36:42,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:42,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 07:36:42,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090889079] [2020-10-29 07:36:42,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:36:42,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:42,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:36:42,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:36:42,991 INFO L87 Difference]: Start difference. First operand 1881 states and 2414 transitions. Second operand 11 states. [2020-10-29 07:36:47,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:47,218 INFO L93 Difference]: Finished difference Result 3733 states and 5112 transitions. [2020-10-29 07:36:47,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 07:36:47,219 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 280 [2020-10-29 07:36:47,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:47,241 INFO L225 Difference]: With dead ends: 3733 [2020-10-29 07:36:47,241 INFO L226 Difference]: Without dead ends: 2351 [2020-10-29 07:36:47,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2020-10-29 07:36:47,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2020-10-29 07:36:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 2251. [2020-10-29 07:36:47,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2251 states. [2020-10-29 07:36:47,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 2674 transitions. [2020-10-29 07:36:47,337 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 2674 transitions. Word has length 280 [2020-10-29 07:36:47,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:47,338 INFO L481 AbstractCegarLoop]: Abstraction has 2251 states and 2674 transitions. [2020-10-29 07:36:47,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:36:47,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 2674 transitions. [2020-10-29 07:36:47,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-10-29 07:36:47,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:47,348 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:47,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 07:36:47,348 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:47,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:47,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1757370548, now seen corresponding path program 1 times [2020-10-29 07:36:47,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:47,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164089407] [2020-10-29 07:36:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:47,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:47,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:48,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:48,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:49,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:52,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:52,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-29 07:36:52,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 07:36:52,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-29 07:36:52,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:52,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:36:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-29 07:36:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-29 07:36:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:52,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:52,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:52,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:52,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:52,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:52,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 07:36:52,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:52,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:52,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:52,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:52,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:52,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:52,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:52,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:36:52,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:52,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 07:36:52,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:52,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:52,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:52,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 07:36:52,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:36:52,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 07:36:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:52,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:52,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:52,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:52,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:52,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:36:52,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-29 07:36:52,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:52,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:52,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:52,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:52,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 07:36:52,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:52,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-10-29 07:36:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:52,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:53,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:53,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:36:53,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:53,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 07:36:53,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:53,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:53,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 07:36:53,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:53,338 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 258 proven. 83 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 07:36:53,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164089407] [2020-10-29 07:36:53,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:53,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 07:36:53,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691525380] [2020-10-29 07:36:53,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 07:36:53,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:53,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 07:36:53,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:36:53,341 INFO L87 Difference]: Start difference. First operand 2251 states and 2674 transitions. Second operand 9 states. [2020-10-29 07:36:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:57,060 INFO L93 Difference]: Finished difference Result 4884 states and 5920 transitions. [2020-10-29 07:36:57,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 07:36:57,061 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 317 [2020-10-29 07:36:57,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:57,074 INFO L225 Difference]: With dead ends: 4884 [2020-10-29 07:36:57,075 INFO L226 Difference]: Without dead ends: 2257 [2020-10-29 07:36:57,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2020-10-29 07:36:57,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2020-10-29 07:36:57,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2059. [2020-10-29 07:36:57,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2059 states. [2020-10-29 07:36:57,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 2376 transitions. [2020-10-29 07:36:57,150 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 2376 transitions. Word has length 317 [2020-10-29 07:36:57,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:57,151 INFO L481 AbstractCegarLoop]: Abstraction has 2059 states and 2376 transitions. [2020-10-29 07:36:57,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 07:36:57,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 2376 transitions. [2020-10-29 07:36:57,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2020-10-29 07:36:57,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:57,160 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:36:57,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 07:36:57,161 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:57,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:57,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1456320536, now seen corresponding path program 1 times [2020-10-29 07:36:57,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:57,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805879212] [2020-10-29 07:36:57,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:57,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:57,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:58,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:58,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:00,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:02,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:02,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 444 [2020-10-29 07:37:02,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:37:02,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 07:37:02,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:02,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:02,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-29 07:37:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 07:37:02,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:02,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:02,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:02,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:02,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:02,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:02,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:37:02,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:02,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:02,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:02,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:02,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:02,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:02,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:02,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:02,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:37:02,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:02,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:02,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:02,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:02,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:02,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:02,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:02,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:02,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:02,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:02,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:02,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 07:37:02,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:02,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:02,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:02,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:02,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:37:02,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:37:02,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:02,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:02,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:02,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:37:02,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:02,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 07:37:02,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:02,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:02,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:02,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:02,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 07:37:02,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:37:02,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-29 07:37:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:03,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:03,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:03,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:37:03,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:03,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 07:37:03,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:03,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 07:37:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:03,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:37:03,295 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 303 proven. 82 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2020-10-29 07:37:03,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805879212] [2020-10-29 07:37:03,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:03,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:37:03,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769167447] [2020-10-29 07:37:03,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:37:03,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:03,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:37:03,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:37:03,302 INFO L87 Difference]: Start difference. First operand 2059 states and 2376 transitions. Second operand 7 states. [2020-10-29 07:37:05,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:05,929 INFO L93 Difference]: Finished difference Result 4703 states and 5683 transitions. [2020-10-29 07:37:05,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:37:05,930 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 426 [2020-10-29 07:37:05,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:05,946 INFO L225 Difference]: With dead ends: 4703 [2020-10-29 07:37:05,946 INFO L226 Difference]: Without dead ends: 3016 [2020-10-29 07:37:05,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:37:05,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2020-10-29 07:37:06,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2811. [2020-10-29 07:37:06,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2811 states. [2020-10-29 07:37:06,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 3334 transitions. [2020-10-29 07:37:06,038 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 3334 transitions. Word has length 426 [2020-10-29 07:37:06,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:06,039 INFO L481 AbstractCegarLoop]: Abstraction has 2811 states and 3334 transitions. [2020-10-29 07:37:06,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:37:06,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 3334 transitions. [2020-10-29 07:37:06,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2020-10-29 07:37:06,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:06,049 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 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] [2020-10-29 07:37:06,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 07:37:06,050 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:06,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:06,050 INFO L82 PathProgramCache]: Analyzing trace with hash -2146419368, now seen corresponding path program 1 times [2020-10-29 07:37:06,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:06,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587996169] [2020-10-29 07:37:06,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:06,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:06,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:06,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:07,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:11,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:11,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 457 [2020-10-29 07:37:11,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:37:11,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-29 07:37:11,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:11,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:37:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:37:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-29 07:37:11,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:11,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:11,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:11,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:11,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:11,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:11,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:37:11,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:11,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:11,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:11,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:11,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:37:11,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:11,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:11,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:11,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:11,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:11,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:11,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 07:37:11,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:11,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:11,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:11,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:11,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 07:37:11,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:11,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:11,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:12,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:12,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:37:12,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:12,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-29 07:37:12,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:12,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:12,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:12,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:12,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-29 07:37:12,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:12,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-29 07:37:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:12,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:12,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:12,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:37:12,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:12,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:37:12,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:12,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 07:37:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:12,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:12,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2020-10-29 07:37:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:12,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:12,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:12,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:37:12,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:12,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:37:12,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:12,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 07:37:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:12,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 137 proven. 397 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-29 07:37:12,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587996169] [2020-10-29 07:37:12,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:12,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:37:12,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477442133] [2020-10-29 07:37:12,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:37:12,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:12,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:37:12,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:37:12,832 INFO L87 Difference]: Start difference. First operand 2811 states and 3334 transitions. Second operand 8 states. [2020-10-29 07:37:15,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:15,174 INFO L93 Difference]: Finished difference Result 5268 states and 6332 transitions. [2020-10-29 07:37:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:37:15,178 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 439 [2020-10-29 07:37:15,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:15,193 INFO L225 Difference]: With dead ends: 5268 [2020-10-29 07:37:15,193 INFO L226 Difference]: Without dead ends: 2829 [2020-10-29 07:37:15,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:37:15,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2020-10-29 07:37:15,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2815. [2020-10-29 07:37:15,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2815 states. [2020-10-29 07:37:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 3344 transitions. [2020-10-29 07:37:15,284 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 3344 transitions. Word has length 439 [2020-10-29 07:37:15,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:15,285 INFO L481 AbstractCegarLoop]: Abstraction has 2815 states and 3344 transitions. [2020-10-29 07:37:15,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:37:15,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 3344 transitions. [2020-10-29 07:37:15,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2020-10-29 07:37:15,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:15,297 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-29 07:37:15,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 07:37:15,298 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:15,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:15,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1373955792, now seen corresponding path program 1 times [2020-10-29 07:37:15,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:15,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417695117] [2020-10-29 07:37:15,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:15,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:15,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:15,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:18,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:18,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:20,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:20,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 536 [2020-10-29 07:37:20,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 07:37:20,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 07:37:20,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:20,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-29 07:37:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-29 07:37:20,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:20,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:20,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:20,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:20,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:20,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:20,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:37:20,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:20,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:20,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:20,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:20,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:20,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:20,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:20,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:20,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:37:20,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:20,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:20,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:20,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:20,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:20,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:20,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:20,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:20,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:20,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:20,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:20,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 07:37:20,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:20,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:20,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:20,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:20,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:37:20,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:20,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:20,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:20,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:20,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-29 07:37:20,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:20,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-29 07:37:20,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:20,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-29 07:37:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:21,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2020-10-29 07:37:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:21,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:21,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:21,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:37:21,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:21,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:37:21,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:21,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:21,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:21,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 07:37:21,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:21,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 354 proven. 82 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2020-10-29 07:37:21,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417695117] [2020-10-29 07:37:21,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:21,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:37:21,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322375717] [2020-10-29 07:37:21,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:37:21,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:21,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:37:21,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:37:21,533 INFO L87 Difference]: Start difference. First operand 2815 states and 3344 transitions. Second operand 7 states. [2020-10-29 07:37:23,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:23,748 INFO L93 Difference]: Finished difference Result 5280 states and 6374 transitions. [2020-10-29 07:37:23,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:37:23,748 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 518 [2020-10-29 07:37:23,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:23,763 INFO L225 Difference]: With dead ends: 5280 [2020-10-29 07:37:23,763 INFO L226 Difference]: Without dead ends: 2837 [2020-10-29 07:37:23,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:37:23,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2020-10-29 07:37:23,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 2815. [2020-10-29 07:37:23,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2815 states. [2020-10-29 07:37:23,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 3339 transitions. [2020-10-29 07:37:23,872 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 3339 transitions. Word has length 518 [2020-10-29 07:37:23,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:23,873 INFO L481 AbstractCegarLoop]: Abstraction has 2815 states and 3339 transitions. [2020-10-29 07:37:23,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:37:23,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 3339 transitions. [2020-10-29 07:37:23,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2020-10-29 07:37:23,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:23,887 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:37:23,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 07:37:23,888 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:23,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:23,888 INFO L82 PathProgramCache]: Analyzing trace with hash 644878220, now seen corresponding path program 1 times [2020-10-29 07:37:23,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:23,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561681374] [2020-10-29 07:37:23,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:24,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:24,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:24,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:27,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:27,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:28,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 552 [2020-10-29 07:37:29,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 07:37:29,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-29 07:37:29,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:37:29,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-29 07:37:29,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-29 07:37:29,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:29,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:37:29,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:29,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:29,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:37:29,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:29,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:29,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:29,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:29,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 07:37:29,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:37:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:29,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 07:37:29,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:29,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 07:37:29,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:37:29,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 07:37:29,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 07:37:29,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:29,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2020-10-29 07:37:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:29,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:29,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:29,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:37:29,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:29,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:37:29,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:29,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 07:37:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:30,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 598 proven. 154 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2020-10-29 07:37:30,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561681374] [2020-10-29 07:37:30,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:30,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:37:30,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088772945] [2020-10-29 07:37:30,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:37:30,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:30,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:37:30,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:37:30,312 INFO L87 Difference]: Start difference. First operand 2815 states and 3339 transitions. Second operand 8 states. [2020-10-29 07:37:32,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:32,596 INFO L93 Difference]: Finished difference Result 5638 states and 6764 transitions. [2020-10-29 07:37:32,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:37:32,597 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 532 [2020-10-29 07:37:32,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:32,612 INFO L225 Difference]: With dead ends: 5638 [2020-10-29 07:37:32,613 INFO L226 Difference]: Without dead ends: 3195 [2020-10-29 07:37:32,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:37:32,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2020-10-29 07:37:32,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 3181. [2020-10-29 07:37:32,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3181 states. [2020-10-29 07:37:32,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 3733 transitions. [2020-10-29 07:37:32,707 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 3733 transitions. Word has length 532 [2020-10-29 07:37:32,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:32,708 INFO L481 AbstractCegarLoop]: Abstraction has 3181 states and 3733 transitions. [2020-10-29 07:37:32,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:37:32,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 3733 transitions. [2020-10-29 07:37:32,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2020-10-29 07:37:32,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:32,716 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:32,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 07:37:32,716 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:32,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:32,717 INFO L82 PathProgramCache]: Analyzing trace with hash 307874228, now seen corresponding path program 1 times [2020-10-29 07:37:32,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:32,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409597609] [2020-10-29 07:37:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:32,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:33,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:34,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:35,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:35,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:37,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:37,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 713 [2020-10-29 07:37:37,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:37:37,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-29 07:37:37,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:37,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:37,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:37,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-29 07:37:37,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 07:37:37,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:37,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:38,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:38,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:38,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:38,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:38,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:37:38,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:38,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:38,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:38,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:38,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:38,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:38,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:38,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:38,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:37:38,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:38,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:38,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:38,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:38,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:38,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:38,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:38,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:38,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:37:38,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:38,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:38,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:38,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:38,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:38,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:38,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:38,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:38,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:37:38,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:38,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:38,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:38,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:38,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:38,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:38,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:37:38,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:38,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 07:37:38,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:38,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:38,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:38,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:38,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:37:38,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:38,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:37:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:38,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:38,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:38,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:37:38,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 07:37:38,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:38,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 07:37:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:38,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-10-29 07:37:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:38,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:38,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:38,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:37:38,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:38,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:37:38,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:38,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:38,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:38,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 07:37:38,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:38,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1553 backedges. 503 proven. 72 refuted. 0 times theorem prover too weak. 978 trivial. 0 not checked. [2020-10-29 07:37:38,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409597609] [2020-10-29 07:37:38,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:38,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:37:38,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147192944] [2020-10-29 07:37:38,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:37:38,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:38,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:37:38,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:37:38,731 INFO L87 Difference]: Start difference. First operand 3181 states and 3733 transitions. Second operand 7 states. [2020-10-29 07:37:40,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:40,959 INFO L93 Difference]: Finished difference Result 6188 states and 7331 transitions. [2020-10-29 07:37:40,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:37:40,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 691 [2020-10-29 07:37:40,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:40,978 INFO L225 Difference]: With dead ends: 6188 [2020-10-29 07:37:40,978 INFO L226 Difference]: Without dead ends: 3379 [2020-10-29 07:37:40,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:37:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3379 states. [2020-10-29 07:37:41,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3379 to 3367. [2020-10-29 07:37:41,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3367 states. [2020-10-29 07:37:41,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 3939 transitions. [2020-10-29 07:37:41,086 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 3939 transitions. Word has length 691 [2020-10-29 07:37:41,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:41,088 INFO L481 AbstractCegarLoop]: Abstraction has 3367 states and 3939 transitions. [2020-10-29 07:37:41,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:37:41,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 3939 transitions. [2020-10-29 07:37:41,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2020-10-29 07:37:41,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:41,097 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:41,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 07:37:41,098 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:41,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:41,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1972845456, now seen corresponding path program 1 times [2020-10-29 07:37:41,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:41,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072067619] [2020-10-29 07:37:41,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:41,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:41,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:41,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:43,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:46,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:46,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 731 [2020-10-29 07:37:46,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:37:46,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-29 07:37:46,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:46,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:46,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:46,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-29 07:37:46,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:37:46,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:46,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:46,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:46,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:46,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:46,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:46,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:37:46,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:46,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:46,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:46,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:46,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:46,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:46,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:46,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:46,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:46,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:46,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:37:46,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:46,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:46,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:46,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:46,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:46,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:46,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:46,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:46,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:46,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:46,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:46,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:37:46,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:46,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:46,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:46,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:46,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:46,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:46,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:46,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:46,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 07:37:46,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:46,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 07:37:46,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:46,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:46,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:46,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:46,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:37:46,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:46,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-29 07:37:46,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:46,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:46,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:46,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:46,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:37:46,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:47,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-29 07:37:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:47,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:47,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:47,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:37:47,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:47,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:37:47,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:47,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 07:37:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:47,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:47,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2020-10-29 07:37:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:47,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:47,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:47,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:37:47,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:47,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:37:47,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:47,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:47,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 07:37:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:47,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1553 backedges. 553 proven. 152 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2020-10-29 07:37:47,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072067619] [2020-10-29 07:37:47,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:47,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:37:47,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968931618] [2020-10-29 07:37:47,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:37:47,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:47,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:37:47,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:37:47,613 INFO L87 Difference]: Start difference. First operand 3367 states and 3939 transitions. Second operand 8 states. [2020-10-29 07:37:50,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:50,924 INFO L93 Difference]: Finished difference Result 8764 states and 10766 transitions. [2020-10-29 07:37:50,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:37:50,924 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 709 [2020-10-29 07:37:50,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:51,014 INFO L225 Difference]: With dead ends: 8764 [2020-10-29 07:37:51,014 INFO L226 Difference]: Without dead ends: 5401 [2020-10-29 07:37:51,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:37:51,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5401 states. [2020-10-29 07:37:51,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 5397. [2020-10-29 07:37:51,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5397 states. [2020-10-29 07:37:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5397 states to 5397 states and 6492 transitions. [2020-10-29 07:37:51,163 INFO L78 Accepts]: Start accepts. Automaton has 5397 states and 6492 transitions. Word has length 709 [2020-10-29 07:37:51,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:51,164 INFO L481 AbstractCegarLoop]: Abstraction has 5397 states and 6492 transitions. [2020-10-29 07:37:51,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:37:51,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5397 states and 6492 transitions. [2020-10-29 07:37:51,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2020-10-29 07:37:51,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:51,172 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:51,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 07:37:51,173 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:51,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:51,173 INFO L82 PathProgramCache]: Analyzing trace with hash -180131672, now seen corresponding path program 1 times [2020-10-29 07:37:51,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:51,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142228197] [2020-10-29 07:37:51,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:51,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:51,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:52,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:53,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:53,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:56,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:56,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 754 [2020-10-29 07:37:56,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:37:56,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 07:37:56,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:56,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 627 [2020-10-29 07:37:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:37:56,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:56,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:56,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:56,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:56,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:56,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:56,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:37:56,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:56,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:56,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:56,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:56,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:56,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:56,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:56,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:37:56,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:56,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:56,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:56,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:56,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:56,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:56,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:56,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:56,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:56,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:56,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:37:56,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:56,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:56,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:56,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:56,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:56,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:56,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:56,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:56,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:56,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:56,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:56,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:37:56,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:56,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:56,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:56,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:56,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:56,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:37:56,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:56,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:37:56,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:56,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:56,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:56,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:56,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:56,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:56,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:37:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:56,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:56,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:56,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-29 07:37:56,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:56,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 07:37:56,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:56,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:56,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-29 07:37:56,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:56,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 617 [2020-10-29 07:37:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:56,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:56,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:56,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:37:56,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:56,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 07:37:56,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:56,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:56,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:56,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:56,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:37:56,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:57,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1718 backedges. 612 proven. 2 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-10-29 07:37:57,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142228197] [2020-10-29 07:37:57,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:57,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:37:57,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220939891] [2020-10-29 07:37:57,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:37:57,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:57,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:37:57,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:37:57,251 INFO L87 Difference]: Start difference. First operand 5397 states and 6492 transitions. Second operand 7 states. [2020-10-29 07:37:59,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:59,792 INFO L93 Difference]: Finished difference Result 10636 states and 12866 transitions. [2020-10-29 07:37:59,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:37:59,792 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 732 [2020-10-29 07:37:59,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:59,813 INFO L225 Difference]: With dead ends: 10636 [2020-10-29 07:37:59,814 INFO L226 Difference]: Without dead ends: 5407 [2020-10-29 07:37:59,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:37:59,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5407 states. [2020-10-29 07:37:59,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5407 to 5379. [2020-10-29 07:37:59,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5379 states. [2020-10-29 07:37:59,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 6135 transitions. [2020-10-29 07:37:59,984 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 6135 transitions. Word has length 732 [2020-10-29 07:37:59,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:59,985 INFO L481 AbstractCegarLoop]: Abstraction has 5379 states and 6135 transitions. [2020-10-29 07:37:59,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:37:59,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 6135 transitions. [2020-10-29 07:37:59,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2020-10-29 07:37:59,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:00,000 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:00,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 07:38:00,000 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:00,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:00,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1924622760, now seen corresponding path program 1 times [2020-10-29 07:38:00,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:00,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66218303] [2020-10-29 07:38:00,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:01,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:05,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:05,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 810 [2020-10-29 07:38:05,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:38:05,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 07:38:05,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:05,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:05,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:05,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-29 07:38:05,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:38:05,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:05,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:05,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:05,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:05,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:05,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:05,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:38:05,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:05,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:05,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:05,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:05,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:05,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:05,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:38:05,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:38:05,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:05,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:05,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:38:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:05,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:05,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:05,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:38:05,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:05,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:38:05,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:05,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:05,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:05,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:05,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:05,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:05,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:38:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:05,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:05,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:05,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:38:05,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:05,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:38:05,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:05,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:05,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:05,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:05,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:05,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:05,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:38:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:05,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:05,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:05,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:38:05,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:05,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 07:38:05,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:05,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:05,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:05,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:05,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:38:05,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:05,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:38:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:05,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:05,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:05,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:05,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:05,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-29 07:38:05,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:05,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:05,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:05,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:05,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:38:05,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:05,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-29 07:38:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:05,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:05,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:05,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 07:38:05,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:05,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:38:05,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:05,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 07:38:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:05,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:06,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 706 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-10-29 07:38:06,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66218303] [2020-10-29 07:38:06,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:06,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:38:06,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062798365] [2020-10-29 07:38:06,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:38:06,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:06,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:38:06,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:38:06,237 INFO L87 Difference]: Start difference. First operand 5379 states and 6135 transitions. Second operand 7 states. [2020-10-29 07:38:08,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:08,351 INFO L93 Difference]: Finished difference Result 12230 states and 14299 transitions. [2020-10-29 07:38:08,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:38:08,352 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 788 [2020-10-29 07:38:08,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:08,380 INFO L225 Difference]: With dead ends: 12230 [2020-10-29 07:38:08,381 INFO L226 Difference]: Without dead ends: 7223 [2020-10-29 07:38:08,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:38:08,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7223 states. [2020-10-29 07:38:08,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7223 to 7219. [2020-10-29 07:38:08,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7219 states. [2020-10-29 07:38:08,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7219 states to 7219 states and 8348 transitions. [2020-10-29 07:38:08,569 INFO L78 Accepts]: Start accepts. Automaton has 7219 states and 8348 transitions. Word has length 788 [2020-10-29 07:38:08,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:08,570 INFO L481 AbstractCegarLoop]: Abstraction has 7219 states and 8348 transitions. [2020-10-29 07:38:08,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:38:08,570 INFO L276 IsEmpty]: Start isEmpty. Operand 7219 states and 8348 transitions. [2020-10-29 07:38:08,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2020-10-29 07:38:08,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:08,586 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2020-10-29 07:38:08,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 07:38:08,586 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:08,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:08,587 INFO L82 PathProgramCache]: Analyzing trace with hash -960227044, now seen corresponding path program 1 times [2020-10-29 07:38:08,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:08,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891752617] [2020-10-29 07:38:08,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:08,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:09,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:09,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:10,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:13,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:13,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 985 [2020-10-29 07:38:13,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:38:13,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-29 07:38:13,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:13,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-29 07:38:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:38:13,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:14,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:14,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:14,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:14,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:14,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:14,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:38:14,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:14,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:14,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:14,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:14,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:14,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:14,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:14,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:14,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:14,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:38:14,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:14,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:38:14,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:14,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:14,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:14,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:14,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:14,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:14,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:38:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:14,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:14,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:14,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:38:14,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:14,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:38:14,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:14,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:14,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:14,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:14,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:14,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:14,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:38:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:14,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:14,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:14,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:38:14,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:14,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:38:14,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:14,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:14,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:14,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:14,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:14,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:14,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:38:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:14,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:14,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:14,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:38:14,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:14,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:38:14,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:14,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:14,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:14,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:38:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:14,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:14,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:14,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-29 07:38:14,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:14,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 07:38:14,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:14,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:14,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:14,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:14,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-29 07:38:14,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:14,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-29 07:38:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:14,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:14,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:14,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:14,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:14,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-29 07:38:14,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:14,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:14,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:14,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:14,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:38:14,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:14,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-29 07:38:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:14,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:14,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:14,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 07:38:14,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:14,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:38:14,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:14,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:14,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:14,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 07:38:14,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:14,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:15,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2495 backedges. 917 proven. 73 refuted. 0 times theorem prover too weak. 1505 trivial. 0 not checked. [2020-10-29 07:38:15,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891752617] [2020-10-29 07:38:15,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:15,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:38:15,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554145215] [2020-10-29 07:38:15,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:38:15,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:15,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:38:15,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:38:15,300 INFO L87 Difference]: Start difference. First operand 7219 states and 8348 transitions. Second operand 7 states. [2020-10-29 07:38:17,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:17,543 INFO L93 Difference]: Finished difference Result 14620 states and 17150 transitions. [2020-10-29 07:38:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:38:17,544 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 961 [2020-10-29 07:38:17,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:17,583 INFO L225 Difference]: With dead ends: 14620 [2020-10-29 07:38:17,584 INFO L226 Difference]: Without dead ends: 7773 [2020-10-29 07:38:17,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:38:17,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7773 states. [2020-10-29 07:38:17,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7773 to 7587. [2020-10-29 07:38:17,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7587 states. [2020-10-29 07:38:17,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7587 states to 7587 states and 8806 transitions. [2020-10-29 07:38:17,778 INFO L78 Accepts]: Start accepts. Automaton has 7587 states and 8806 transitions. Word has length 961 [2020-10-29 07:38:17,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:17,780 INFO L481 AbstractCegarLoop]: Abstraction has 7587 states and 8806 transitions. [2020-10-29 07:38:17,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:38:17,781 INFO L276 IsEmpty]: Start isEmpty. Operand 7587 states and 8806 transitions. [2020-10-29 07:38:17,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2020-10-29 07:38:17,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:17,798 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:38:17,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 07:38:17,799 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:17,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:17,800 INFO L82 PathProgramCache]: Analyzing trace with hash -573137448, now seen corresponding path program 1 times [2020-10-29 07:38:17,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:17,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314738336] [2020-10-29 07:38:17,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:18,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:18,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:20,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:22,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:23,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:23,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 995 [2020-10-29 07:38:23,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:38:23,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-29 07:38:23,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:23,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 07:38:23,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-29 07:38:23,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 07:38:23,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:23,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:23,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:23,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:23,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:23,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:23,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:38:23,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:23,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:23,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:23,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:23,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:23,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:23,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:38:23,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:23,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:38:23,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:23,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:23,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:23,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:23,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:23,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:23,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:38:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:23,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:23,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:23,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:38:23,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:23,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:38:23,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:23,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:23,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:23,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:23,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:23,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:23,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:38:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:23,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:23,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:23,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:38:23,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:23,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:38:23,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:23,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:23,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:23,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:38:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:23,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:23,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:23,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:38:23,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:23,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:38:23,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:23,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:23,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:23,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:38:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:23,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:23,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:23,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:38:23,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:23,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:38:23,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:23,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:23,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:23,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:23,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:23,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:23,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:38:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:23,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:23,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:23,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:38:23,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:23,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:38:23,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:23,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:38:23,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:23,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:38:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:23,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:24,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:24,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:24,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-29 07:38:24,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:24,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:38:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:38:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:24,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:38:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:24,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:24,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:24,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:24,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:38:24,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:38:24,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 07:38:24,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:24,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:24,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 07:38:24,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 1337 proven. 70 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2020-10-29 07:38:24,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314738336] [2020-10-29 07:38:24,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:24,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 07:38:24,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781358964] [2020-10-29 07:38:24,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 07:38:24,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:24,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 07:38:24,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:38:24,784 INFO L87 Difference]: Start difference. First operand 7587 states and 8806 transitions. Second operand 9 states. [2020-10-29 07:38:28,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:28,428 INFO L93 Difference]: Finished difference Result 17194 states and 20327 transitions. [2020-10-29 07:38:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 07:38:28,431 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 969 [2020-10-29 07:38:28,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:28,465 INFO L225 Difference]: With dead ends: 17194 [2020-10-29 07:38:28,466 INFO L226 Difference]: Without dead ends: 9979 [2020-10-29 07:38:28,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2020-10-29 07:38:28,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9979 states. [2020-10-29 07:38:28,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9979 to 9977. [2020-10-29 07:38:28,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9977 states. [2020-10-29 07:38:28,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9977 states to 9977 states and 11786 transitions. [2020-10-29 07:38:28,734 INFO L78 Accepts]: Start accepts. Automaton has 9977 states and 11786 transitions. Word has length 969 [2020-10-29 07:38:28,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:28,735 INFO L481 AbstractCegarLoop]: Abstraction has 9977 states and 11786 transitions. [2020-10-29 07:38:28,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 07:38:28,736 INFO L276 IsEmpty]: Start isEmpty. Operand 9977 states and 11786 transitions. [2020-10-29 07:38:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2020-10-29 07:38:28,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:28,757 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:38:28,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 07:38:28,758 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:28,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:28,758 INFO L82 PathProgramCache]: Analyzing trace with hash -2115589260, now seen corresponding path program 1 times [2020-10-29 07:38:28,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:28,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016906077] [2020-10-29 07:38:28,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:29,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:29,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:29,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:33,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:33,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1118 [2020-10-29 07:38:33,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:38:33,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 07:38:33,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:33,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:33,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 07:38:33,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-29 07:38:33,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 387 [2020-10-29 07:38:33,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:34,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:34,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:34,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:34,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:34,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:34,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:38:34,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:34,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:34,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:34,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:34,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:34,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:34,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:34,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:34,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:34,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:38:34,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:34,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:38:34,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:34,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:34,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:34,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:34,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:34,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:34,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:38:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:34,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:34,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:34,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:38:34,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:34,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:38:34,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:34,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:34,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:34,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:34,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:34,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:34,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:38:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:34,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:34,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:34,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:38:34,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:34,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:38:34,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:34,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:34,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:34,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:38:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:34,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:34,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:34,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:38:34,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:34,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:38:34,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:34,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:34,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:34,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:38:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:34,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:34,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:34,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:38:34,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:34,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:38:34,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:34,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:34,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:34,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:34,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:34,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:34,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:38:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:34,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:34,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:34,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:38:34,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:34,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 07:38:34,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:34,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:38:34,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:34,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:38:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:34,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:34,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:34,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:34,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:34,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-29 07:38:34,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:34,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:34,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:38:34,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:34,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:38:34,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:34,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:38:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:34,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:34,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:34,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:38:34,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:34,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 07:38:34,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:34,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:34,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:34,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:34,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 07:38:34,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:35,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:38:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:35,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:35,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:35,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:38:35,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:35,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 07:38:35,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:35,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:38:35,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:36,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3710 backedges. 2244 proven. 88 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2020-10-29 07:38:36,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2016906077] [2020-10-29 07:38:36,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:36,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 07:38:36,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184759003] [2020-10-29 07:38:36,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:38:36,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:36,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:38:36,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:38:36,329 INFO L87 Difference]: Start difference. First operand 9977 states and 11786 transitions. Second operand 11 states. [2020-10-29 07:38:40,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:40,612 INFO L93 Difference]: Finished difference Result 19584 states and 23197 transitions. [2020-10-29 07:38:40,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 07:38:40,614 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1090 [2020-10-29 07:38:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:40,642 INFO L225 Difference]: With dead ends: 19584 [2020-10-29 07:38:40,642 INFO L226 Difference]: Without dead ends: 9979 [2020-10-29 07:38:40,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2020-10-29 07:38:40,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9979 states. [2020-10-29 07:38:40,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9979 to 9977. [2020-10-29 07:38:40,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9977 states. [2020-10-29 07:38:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9977 states to 9977 states and 11776 transitions. [2020-10-29 07:38:40,863 INFO L78 Accepts]: Start accepts. Automaton has 9977 states and 11776 transitions. Word has length 1090 [2020-10-29 07:38:40,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:40,864 INFO L481 AbstractCegarLoop]: Abstraction has 9977 states and 11776 transitions. [2020-10-29 07:38:40,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:38:40,864 INFO L276 IsEmpty]: Start isEmpty. Operand 9977 states and 11776 transitions. [2020-10-29 07:38:40,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1101 [2020-10-29 07:38:40,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:40,883 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-29 07:38:40,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 07:38:40,883 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:40,884 INFO L82 PathProgramCache]: Analyzing trace with hash 493622780, now seen corresponding path program 1 times [2020-10-29 07:38:40,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:40,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474366236] [2020-10-29 07:38:40,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:41,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:41,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:42,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:46,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1126 [2020-10-29 07:38:46,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:38:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-29 07:38:46,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:46,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 821 [2020-10-29 07:38:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:38:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:46,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:46,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:46,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:46,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:46,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:46,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:38:46,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:46,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:46,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:46,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:46,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:46,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:46,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:38:46,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:46,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:38:46,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:46,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:46,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:46,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:46,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:46,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:46,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:38:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:46,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:46,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:46,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:38:46,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:46,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:38:46,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:46,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:46,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:46,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:46,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:46,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:46,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:38:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:46,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:46,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:46,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:38:46,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:46,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:38:46,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:46,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:46,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:46,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:38:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:46,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:46,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:46,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:38:46,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:38:46,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:46,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:46,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:38:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:46,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:46,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:46,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-29 07:38:46,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:46,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:38:46,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:46,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:46,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:46,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-29 07:38:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:46,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:46,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:46,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:38:46,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:46,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 07:38:46,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:46,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:46,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:46,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:46,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 07:38:46,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:46,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2020-10-29 07:38:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:46,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:46,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:46,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:46,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:46,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 07:38:46,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:46,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:46,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:46,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:46,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:38:46,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:47,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 988 [2020-10-29 07:38:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:47,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:47,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:47,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:38:47,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:47,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:38:47,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:47,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:47,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:47,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:38:47,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:47,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:38:47,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3378 backedges. 1088 proven. 79 refuted. 0 times theorem prover too weak. 2211 trivial. 0 not checked. [2020-10-29 07:38:47,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474366236] [2020-10-29 07:38:47,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:47,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:38:47,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240846334] [2020-10-29 07:38:47,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:38:47,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:47,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:38:47,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:38:47,931 INFO L87 Difference]: Start difference. First operand 9977 states and 11776 transitions. Second operand 7 states. [2020-10-29 07:38:50,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:50,144 INFO L93 Difference]: Finished difference Result 19582 states and 23174 transitions. [2020-10-29 07:38:50,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:38:50,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1100 [2020-10-29 07:38:50,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:50,171 INFO L225 Difference]: With dead ends: 19582 [2020-10-29 07:38:50,172 INFO L226 Difference]: Without dead ends: 9793 [2020-10-29 07:38:50,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:38:50,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2020-10-29 07:38:50,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 8877. [2020-10-29 07:38:50,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8877 states. [2020-10-29 07:38:50,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 10151 transitions. [2020-10-29 07:38:50,383 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 10151 transitions. Word has length 1100 [2020-10-29 07:38:50,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:50,385 INFO L481 AbstractCegarLoop]: Abstraction has 8877 states and 10151 transitions. [2020-10-29 07:38:50,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:38:50,385 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 10151 transitions. [2020-10-29 07:38:50,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2020-10-29 07:38:50,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:50,404 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:38:50,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 07:38:50,404 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:50,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:50,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1549706956, now seen corresponding path program 1 times [2020-10-29 07:38:50,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:50,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529594409] [2020-10-29 07:38:50,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:50,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:51,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:54,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:54,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:55,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:55,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:55,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1137 [2020-10-29 07:38:55,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:38:55,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 07:38:55,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:55,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 07:38:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-29 07:38:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-29 07:38:55,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:55,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:55,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:55,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:55,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:55,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:55,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:38:55,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:55,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:55,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:55,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:55,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:55,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:55,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:38:55,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:55,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:38:55,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:55,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:55,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:56,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:38:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:56,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:56,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:56,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:38:56,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:56,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:38:56,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:56,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:56,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:56,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:56,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:56,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:56,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:38:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:56,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:56,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:56,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:38:56,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:56,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:38:56,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:56,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:56,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:56,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:56,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:56,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:56,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:38:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:56,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:56,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:56,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:38:56,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:56,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:38:56,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:56,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:56,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:56,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:38:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:56,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:56,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:56,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:38:56,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:56,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 07:38:56,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:56,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:56,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:56,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:56,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:38:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:56,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:56,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:56,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:38:56,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:56,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 07:38:56,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:56,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:38:56,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:56,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:38:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:56,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:56,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:56,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:56,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:56,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-29 07:38:56,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:56,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:38:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:38:56,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:56,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:38:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:56,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:57,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:57,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:57,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:38:57,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:38:57,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-10-29 07:38:57,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:57,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:57,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:57,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:57,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-29 07:38:57,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:57,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-29 07:38:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:57,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:57,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:57,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:38:57,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:57,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 07:38:57,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:57,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:38:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:57,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:58,846 INFO L134 CoverageAnalysis]: Checked inductivity of 3735 backedges. 1755 proven. 158 refuted. 0 times theorem prover too weak. 1822 trivial. 0 not checked. [2020-10-29 07:38:58,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529594409] [2020-10-29 07:38:58,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:58,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 07:38:58,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856368090] [2020-10-29 07:38:58,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:38:58,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:58,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:38:58,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:38:58,849 INFO L87 Difference]: Start difference. First operand 8877 states and 10151 transitions. Second operand 11 states. [2020-10-29 07:39:03,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:39:03,250 INFO L93 Difference]: Finished difference Result 17748 states and 20302 transitions. [2020-10-29 07:39:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 07:39:03,252 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1109 [2020-10-29 07:39:03,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:39:03,278 INFO L225 Difference]: With dead ends: 17748 [2020-10-29 07:39:03,278 INFO L226 Difference]: Without dead ends: 9061 [2020-10-29 07:39:03,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2020-10-29 07:39:03,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9061 states. [2020-10-29 07:39:03,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9061 to 8875. [2020-10-29 07:39:03,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8875 states. [2020-10-29 07:39:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8875 states to 8875 states and 10144 transitions. [2020-10-29 07:39:03,471 INFO L78 Accepts]: Start accepts. Automaton has 8875 states and 10144 transitions. Word has length 1109 [2020-10-29 07:39:03,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:39:03,472 INFO L481 AbstractCegarLoop]: Abstraction has 8875 states and 10144 transitions. [2020-10-29 07:39:03,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:39:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 8875 states and 10144 transitions. [2020-10-29 07:39:03,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1228 [2020-10-29 07:39:03,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:39:03,493 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:39:03,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 07:39:03,493 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:39:03,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:39:03,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1282506300, now seen corresponding path program 1 times [2020-10-29 07:39:03,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:39:03,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997047785] [2020-10-29 07:39:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:39:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:03,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:04,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:05,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:08,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:08,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1257 [2020-10-29 07:39:08,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:39:08,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4560 [2020-10-29 07:39:08,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:08,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:08,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:08,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-29 07:39:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 07:39:08,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:08,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:39:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:08,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:08,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:08,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:39:08,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:08,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 07:39:08,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:08,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:08,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:08,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:08,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:08,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:08,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:39:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:08,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:08,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:08,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:39:08,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:08,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:39:08,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:08,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:08,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:39:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:08,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:08,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:08,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:39:08,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:08,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:39:08,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:08,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:08,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:08,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:08,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:08,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:08,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:39:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:08,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:08,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:08,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:39:08,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:39:08,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:08,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:08,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:39:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:08,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:08,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:08,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:39:08,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:08,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:39:08,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:08,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:08,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:08,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:08,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:08,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:39:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:08,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:09,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:09,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:39:09,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:09,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 07:39:09,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:09,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:09,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:09,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:39:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:09,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:09,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:09,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:39:09,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:09,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:39:09,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:09,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:09,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:09,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:39:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:09,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:09,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:09,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:39:09,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:09,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:39:09,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:09,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:09,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:09,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:09,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:09,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:09,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:39:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:09,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:09,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:09,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:39:09,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:09,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:39:09,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:09,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:09,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:09,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:09,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:09,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:09,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:39:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:09,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:09,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:09,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:39:09,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:09,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-29 07:39:09,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:09,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:09,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:39:09,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:09,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 07:39:09,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:09,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:39:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:09,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:09,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:09,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:39:09,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:09,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 07:39:09,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:09,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:39:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 07:39:09,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4694 backedges. 1049 proven. 2 refuted. 0 times theorem prover too weak. 3643 trivial. 0 not checked. [2020-10-29 07:39:10,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997047785] [2020-10-29 07:39:10,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:39:10,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:39:10,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189438302] [2020-10-29 07:39:10,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:39:10,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:39:10,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:39:10,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:39:10,294 INFO L87 Difference]: Start difference. First operand 8875 states and 10144 transitions. Second operand 7 states. [2020-10-29 07:39:12,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:39:12,357 INFO L93 Difference]: Finished difference Result 17386 states and 19924 transitions. [2020-10-29 07:39:12,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:39:12,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1227 [2020-10-29 07:39:12,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:39:12,381 INFO L225 Difference]: With dead ends: 17386 [2020-10-29 07:39:12,381 INFO L226 Difference]: Without dead ends: 8883 [2020-10-29 07:39:12,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:39:12,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8883 states. [2020-10-29 07:39:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8883 to 8149. [2020-10-29 07:39:12,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8149 states. [2020-10-29 07:39:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8149 states to 8149 states and 8977 transitions. [2020-10-29 07:39:12,562 INFO L78 Accepts]: Start accepts. Automaton has 8149 states and 8977 transitions. Word has length 1227 [2020-10-29 07:39:12,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:39:12,564 INFO L481 AbstractCegarLoop]: Abstraction has 8149 states and 8977 transitions. [2020-10-29 07:39:12,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:39:12,564 INFO L276 IsEmpty]: Start isEmpty. Operand 8149 states and 8977 transitions. [2020-10-29 07:39:12,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2020-10-29 07:39:12,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:39:12,591 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:39:12,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 07:39:12,591 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:39:12,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:39:12,592 INFO L82 PathProgramCache]: Analyzing trace with hash 401338848, now seen corresponding path program 1 times [2020-10-29 07:39:12,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:39:12,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549651710] [2020-10-29 07:39:12,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:39:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:13,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:13,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:15,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:18,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:18,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1352 [2020-10-29 07:39:18,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:39:18,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-29 07:39:18,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:18,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-29 07:39:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:39:18,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:18,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:39:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:18,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:18,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:18,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:39:18,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:18,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:39:18,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:18,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:18,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:18,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:18,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:18,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:18,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:39:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:18,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:18,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:18,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:39:18,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:18,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:39:18,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:18,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:18,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:18,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:18,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:18,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:18,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:39:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:18,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:18,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:18,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:39:18,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:18,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:39:18,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:18,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:18,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:18,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:18,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:18,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:18,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:39:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:18,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:18,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:18,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:39:18,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:18,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:39:18,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:18,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:18,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:18,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:18,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:18,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:18,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:39:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:18,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:18,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:18,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:39:18,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:18,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 07:39:18,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:18,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:18,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:18,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:39:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:18,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:18,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:18,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:39:18,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:18,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 07:39:18,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:18,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:18,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:18,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:18,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:18,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:18,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:39:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:18,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:18,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:18,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:39:18,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:18,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:39:18,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:18,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:18,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:18,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:39:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:18,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:18,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:18,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:39:18,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:18,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:39:18,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:18,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:18,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:18,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:39:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:18,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:18,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:18,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:39:18,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:18,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:39:18,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:18,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:18,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:18,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:18,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:18,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:18,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:39:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:18,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:18,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:18,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:39:18,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-29 07:39:18,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:18,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:39:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 07:39:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:19,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:39:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:19,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:19,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:19,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 07:39:19,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:19,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-29 07:39:19,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:19,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:39:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-29 07:39:19,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 5079 backedges. 1434 proven. 2 refuted. 0 times theorem prover too weak. 3643 trivial. 0 not checked. [2020-10-29 07:39:20,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549651710] [2020-10-29 07:39:20,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:39:20,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:39:20,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598923852] [2020-10-29 07:39:20,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:39:20,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:39:20,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:39:20,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:39:20,240 INFO L87 Difference]: Start difference. First operand 8149 states and 8977 transitions. Second operand 7 states. [2020-10-29 07:39:22,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:39:22,412 INFO L93 Difference]: Finished difference Result 16673 states and 18408 transitions. [2020-10-29 07:39:22,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:39:22,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1322 [2020-10-29 07:39:22,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:39:22,436 INFO L225 Difference]: With dead ends: 16673 [2020-10-29 07:39:22,437 INFO L226 Difference]: Without dead ends: 8896 [2020-10-29 07:39:22,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:39:22,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8896 states. [2020-10-29 07:39:22,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8896 to 8885. [2020-10-29 07:39:22,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8885 states. [2020-10-29 07:39:22,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8885 states to 8885 states and 9738 transitions. [2020-10-29 07:39:22,617 INFO L78 Accepts]: Start accepts. Automaton has 8885 states and 9738 transitions. Word has length 1322 [2020-10-29 07:39:22,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:39:22,619 INFO L481 AbstractCegarLoop]: Abstraction has 8885 states and 9738 transitions. [2020-10-29 07:39:22,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:39:22,619 INFO L276 IsEmpty]: Start isEmpty. Operand 8885 states and 9738 transitions. [2020-10-29 07:39:22,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1346 [2020-10-29 07:39:22,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:39:22,644 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:39:22,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 07:39:22,645 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:39:22,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:39:22,645 INFO L82 PathProgramCache]: Analyzing trace with hash 969907268, now seen corresponding path program 2 times [2020-10-29 07:39:22,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:39:22,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871988412] [2020-10-29 07:39:22,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:39:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:23,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:23,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:25,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:26,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:27,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1377 [2020-10-29 07:39:28,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:39:28,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5105 [2020-10-29 07:39:28,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-29 07:39:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-29 07:39:28,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:39:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:39:28,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:39:28,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:39:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:39:28,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:39:28,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:39:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:39:28,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:39:28,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:39:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:39:28,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:39:28,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:39:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:39:28,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:39:28,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:39:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:39:28,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:39:28,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:39:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:39:28,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:39:28,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:39:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:39:28,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:39:28,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:39:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:39:28,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:39:28,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:39:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:39:28,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 07:39:28,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:39:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:39:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 07:39:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:39:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:39:28,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 07:39:28,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:39:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:39:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 07:39:28,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:28,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-29 07:39:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:39:28,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:39:28,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:39:28,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:39:28,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:39:28,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:39:28,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:39:28,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:39:28,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:39:28,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:39:28,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:39:28,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:39:30,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5771 backedges. 1366 proven. 79 refuted. 0 times theorem prover too weak. 4326 trivial. 0 not checked. [2020-10-29 07:39:30,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871988412] [2020-10-29 07:39:30,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:39:30,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:39:30,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726827120] [2020-10-29 07:39:30,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:39:30,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:39:30,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:39:30,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:39:30,059 INFO L87 Difference]: Start difference. First operand 8885 states and 9738 transitions. Second operand 7 states. [2020-10-29 07:39:33,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:39:33,133 INFO L93 Difference]: Finished difference Result 17961 states and 19709 transitions. [2020-10-29 07:39:33,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:39:33,137 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1345 [2020-10-29 07:39:33,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:39:33,157 INFO L225 Difference]: With dead ends: 17961 [2020-10-29 07:39:33,157 INFO L226 Difference]: Without dead ends: 9448 [2020-10-29 07:39:33,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:39:33,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9448 states. [2020-10-29 07:39:33,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9448 to 9435. [2020-10-29 07:39:33,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9435 states. [2020-10-29 07:39:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9435 states to 9435 states and 10320 transitions. [2020-10-29 07:39:33,360 INFO L78 Accepts]: Start accepts. Automaton has 9435 states and 10320 transitions. Word has length 1345 [2020-10-29 07:39:33,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:39:33,361 INFO L481 AbstractCegarLoop]: Abstraction has 9435 states and 10320 transitions. [2020-10-29 07:39:33,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:39:33,362 INFO L276 IsEmpty]: Start isEmpty. Operand 9435 states and 10320 transitions. [2020-10-29 07:39:33,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1410 [2020-10-29 07:39:33,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:39:33,389 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2020-10-29 07:39:33,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 07:39:33,389 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:39:33,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:39:33,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1318622268, now seen corresponding path program 1 times [2020-10-29 07:39:33,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:39:33,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431086108] [2020-10-29 07:39:33,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:39:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat