/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:05:09,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:05:09,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:05:09,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:05:09,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:05:09,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:05:09,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:05:09,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:05:09,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:05:09,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:05:09,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:05:09,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:05:09,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:05:09,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:05:09,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:05:09,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:05:09,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:05:09,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:05:09,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:05:09,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:05:09,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:05:09,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:05:09,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:05:09,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:05:09,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:05:09,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:05:09,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:05:09,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:05:09,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:05:09,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:05:09,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:05:09,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:05:09,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:05:09,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:05:09,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:05:09,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:05:09,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:05:09,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:05:09,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:05:09,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:05:09,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:05:09,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 08:05:09,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:05:09,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:05:09,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:05:09,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:05:09,943 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:05:09,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:05:09,944 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:05:09,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:05:09,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:05:09,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:05:09,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:05:09,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:05:09,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:05:09,946 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:05:09,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:05:09,946 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:05:09,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:05:09,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:05:09,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:05:09,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:05:09,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:05:09,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:05:09,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:05:09,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:05:09,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:05:09,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:05:09,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:05:09,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:05:09,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:05:09,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:05:10,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:05:10,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:05:10,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:05:10,358 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:05:10,359 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:05:10,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label38.c [2020-10-29 08:05:10,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec48bcb90/2f321d39220d4804b6a8b93e6ce14384/FLAG11a054d2e [2020-10-29 08:05:11,361 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:05:11,364 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label38.c [2020-10-29 08:05:11,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec48bcb90/2f321d39220d4804b6a8b93e6ce14384/FLAG11a054d2e [2020-10-29 08:05:11,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec48bcb90/2f321d39220d4804b6a8b93e6ce14384 [2020-10-29 08:05:11,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:05:11,489 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:05:11,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:05:11,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:05:11,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:05:11,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:05:11" (1/1) ... [2020-10-29 08:05:11,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1f1c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:11, skipping insertion in model container [2020-10-29 08:05:11,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:05:11" (1/1) ... [2020-10-29 08:05:11,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:05:11,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:05:12,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:05:12,467 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:05:12,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:05:12,752 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:05:12,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:12 WrapperNode [2020-10-29 08:05:12,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:05:12,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:05:12,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:05:12,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:05:12,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:12" (1/1) ... [2020-10-29 08:05:12,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:12" (1/1) ... [2020-10-29 08:05:12,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:12" (1/1) ... [2020-10-29 08:05:12,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:12" (1/1) ... [2020-10-29 08:05:12,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:12" (1/1) ... [2020-10-29 08:05:12,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:12" (1/1) ... [2020-10-29 08:05:12,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:12" (1/1) ... [2020-10-29 08:05:12,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:05:12,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:05:12,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:05:12,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:05:12,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:05:13,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:05:13,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:05:13,088 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:05:13,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:05:13,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:05:13,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:05:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:05:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:05:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:05:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:05:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:05:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:05:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:05:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:05:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:05:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:05:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:05:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:05:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:05:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:05:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:05:15,884 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:05:15,884 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:05:15,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:05:15 BoogieIcfgContainer [2020-10-29 08:05:15,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:05:15,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:05:15,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:05:15,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:05:15,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:05:11" (1/3) ... [2020-10-29 08:05:15,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3451682f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:05:15, skipping insertion in model container [2020-10-29 08:05:15,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:12" (2/3) ... [2020-10-29 08:05:15,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3451682f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:05:15, skipping insertion in model container [2020-10-29 08:05:15,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:05:15" (3/3) ... [2020-10-29 08:05:15,897 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label38.c [2020-10-29 08:05:15,910 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:05:15,916 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:05:15,932 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:05:15,967 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:05:15,967 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:05:15,967 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:05:15,967 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:05:15,968 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:05:15,968 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:05:15,968 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:05:15,968 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:05:15,997 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:05:16,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-29 08:05:16,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:16,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:16,006 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:16,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:16,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1136826532, now seen corresponding path program 1 times [2020-10-29 08:05:16,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:16,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674742439] [2020-10-29 08:05:16,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:16,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:16,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:16,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-29 08:05:16,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:16,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-10-29 08:05:16,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:16,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:16,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:05:16,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:05:16,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 08:05:16,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:05:16,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:16,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:16,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:16,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:16,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:16,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:05:16,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:16,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:16,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:16,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:16,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:05:16,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:05:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:05:16,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674742439] [2020-10-29 08:05:16,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:05:16,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:05:16,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827405317] [2020-10-29 08:05:16,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:05:16,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:16,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:05:16,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:05:16,925 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-29 08:05:21,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:21,855 INFO L93 Difference]: Finished difference Result 1174 states and 2170 transitions. [2020-10-29 08:05:21,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:05:21,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-29 08:05:21,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:21,891 INFO L225 Difference]: With dead ends: 1174 [2020-10-29 08:05:21,891 INFO L226 Difference]: Without dead ends: 697 [2020-10-29 08:05:21,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:05:21,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-29 08:05:22,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 693. [2020-10-29 08:05:22,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-29 08:05:22,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1015 transitions. [2020-10-29 08:05:22,010 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1015 transitions. Word has length 18 [2020-10-29 08:05:22,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:22,011 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1015 transitions. [2020-10-29 08:05:22,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:05:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1015 transitions. [2020-10-29 08:05:22,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-29 08:05:22,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:22,017 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:22,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:05:22,017 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:22,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:22,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1460491588, now seen corresponding path program 1 times [2020-10-29 08:05:22,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:22,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811243144] [2020-10-29 08:05:22,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:22,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:22,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:23,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:23,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 08:05:23,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:05:23,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1073 [2020-10-29 08:05:23,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:23,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:05:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:05:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 08:05:23,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:05:23,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:23,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:23,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:23,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:23,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:23,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:05:23,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:23,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:05:23,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:23,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:23,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:23,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:23,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:05:23,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-29 08:05:23,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:23,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 08:05:23,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:05:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:05:23,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811243144] [2020-10-29 08:05:23,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:05:23,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:05:23,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508102232] [2020-10-29 08:05:23,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:23,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:23,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:23,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:23,730 INFO L87 Difference]: Start difference. First operand 693 states and 1015 transitions. Second operand 7 states. [2020-10-29 08:05:29,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:29,159 INFO L93 Difference]: Finished difference Result 2090 states and 3102 transitions. [2020-10-29 08:05:29,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:05:29,163 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-10-29 08:05:29,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:29,172 INFO L225 Difference]: With dead ends: 2090 [2020-10-29 08:05:29,173 INFO L226 Difference]: Without dead ends: 1403 [2020-10-29 08:05:29,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:05:29,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2020-10-29 08:05:29,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1379. [2020-10-29 08:05:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-10-29 08:05:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1813 transitions. [2020-10-29 08:05:29,244 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1813 transitions. Word has length 94 [2020-10-29 08:05:29,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:29,244 INFO L481 AbstractCegarLoop]: Abstraction has 1379 states and 1813 transitions. [2020-10-29 08:05:29,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:29,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1813 transitions. [2020-10-29 08:05:29,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-29 08:05:29,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:29,253 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:29,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:05:29,253 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:29,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:29,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1672522422, now seen corresponding path program 1 times [2020-10-29 08:05:29,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:29,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208074987] [2020-10-29 08:05:29,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:29,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:29,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:29,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:31,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:33,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:33,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-29 08:05:33,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:05:33,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4462 [2020-10-29 08:05:33,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:33,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:33,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:05:33,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:05:33,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 08:05:33,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:05:33,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:33,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:33,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:33,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:33,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:33,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:05:33,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:33,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:05:33,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:33,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:33,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:34,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:34,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:34,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:05:34,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:05:34,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-29 08:05:34,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:34,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:34,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:34,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:34,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:05:34,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:34,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:05:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:34,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:34,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:34,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:05:34,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:34,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-29 08:05:34,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:34,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 08:05:34,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:05:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:05:34,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208074987] [2020-10-29 08:05:34,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:34,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:34,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863248502] [2020-10-29 08:05:34,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:34,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:34,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:34,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:34,470 INFO L87 Difference]: Start difference. First operand 1379 states and 1813 transitions. Second operand 7 states. [2020-10-29 08:05:39,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:39,892 INFO L93 Difference]: Finished difference Result 3469 states and 4721 transitions. [2020-10-29 08:05:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:05:39,897 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-10-29 08:05:39,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:39,910 INFO L225 Difference]: With dead ends: 3469 [2020-10-29 08:05:39,910 INFO L226 Difference]: Without dead ends: 2096 [2020-10-29 08:05:39,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:05:39,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2020-10-29 08:05:39,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 2083. [2020-10-29 08:05:39,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-10-29 08:05:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2688 transitions. [2020-10-29 08:05:39,992 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2688 transitions. Word has length 181 [2020-10-29 08:05:39,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:39,993 INFO L481 AbstractCegarLoop]: Abstraction has 2083 states and 2688 transitions. [2020-10-29 08:05:39,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:39,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2688 transitions. [2020-10-29 08:05:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-29 08:05:39,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:40,000 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:40,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:05:40,001 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:40,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:40,001 INFO L82 PathProgramCache]: Analyzing trace with hash -464496444, now seen corresponding path program 1 times [2020-10-29 08:05:40,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:40,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060251865] [2020-10-29 08:05:40,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:40,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:40,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:40,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:40,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:41,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:43,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:43,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-29 08:05:43,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:05:43,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2985 [2020-10-29 08:05:43,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:43,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:43,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 08:05:43,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:05:43,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 249 [2020-10-29 08:05:43,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:05:43,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:43,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:43,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:43,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:43,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:43,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:05:43,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:43,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:05:43,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:05:43,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:43,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:43,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:43,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:43,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:05:43,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:05:43,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-29 08:05:43,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:43,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:43,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:43,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:43,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:05:43,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:43,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:05:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:43,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:43,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:44,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:44,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:05:44,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:05:44,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-29 08:05:44,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:44,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:44,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:44,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:44,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:05:44,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:05:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 08:05:44,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060251865] [2020-10-29 08:05:44,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:44,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:44,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561279671] [2020-10-29 08:05:44,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:44,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:44,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:44,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:44,265 INFO L87 Difference]: Start difference. First operand 2083 states and 2688 transitions. Second operand 7 states. [2020-10-29 08:05:54,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:54,866 INFO L93 Difference]: Finished difference Result 5554 states and 7132 transitions. [2020-10-29 08:05:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:05:54,869 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 244 [2020-10-29 08:05:54,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:54,912 INFO L225 Difference]: With dead ends: 5554 [2020-10-29 08:05:54,912 INFO L226 Difference]: Without dead ends: 3477 [2020-10-29 08:05:54,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:05:54,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2020-10-29 08:05:55,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3122. [2020-10-29 08:05:55,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3122 states. [2020-10-29 08:05:55,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 3975 transitions. [2020-10-29 08:05:55,017 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 3975 transitions. Word has length 244 [2020-10-29 08:05:55,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:55,018 INFO L481 AbstractCegarLoop]: Abstraction has 3122 states and 3975 transitions. [2020-10-29 08:05:55,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:55,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 3975 transitions. [2020-10-29 08:05:55,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2020-10-29 08:05:55,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:55,032 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:55,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:05:55,033 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:55,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:55,033 INFO L82 PathProgramCache]: Analyzing trace with hash 197312020, now seen corresponding path program 1 times [2020-10-29 08:05:55,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:55,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873180792] [2020-10-29 08:05:55,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:55,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:55,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:55,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:56,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:56,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:57,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:00,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:00,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 484 [2020-10-29 08:06:00,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:06:00,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-29 08:06:00,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:00,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:00,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:06:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 08:06:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:06:00,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:00,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:00,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:00,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:00,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:00,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:00,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:06:00,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:00,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:00,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:00,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:00,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:00,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:00,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:06:00,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:00,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:06:00,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:00,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:00,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:00,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:00,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:06:00,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:00,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:06:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:00,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:00,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:00,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:00,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:06:00,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:06:00,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-10-29 08:06:00,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:00,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:06:00,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:00,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 08:06:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:01,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:01,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:01,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:06:01,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:01,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-29 08:06:01,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:01,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:06:01,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:01,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-29 08:06:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:01,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:01,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:01,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 08:06:01,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:01,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 08:06:01,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:01,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-29 08:06:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:01,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 224 proven. 212 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2020-10-29 08:06:01,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873180792] [2020-10-29 08:06:01,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:01,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:06:01,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837429802] [2020-10-29 08:06:01,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:06:01,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:01,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:06:01,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:06:01,651 INFO L87 Difference]: Start difference. First operand 3122 states and 3975 transitions. Second operand 8 states. [2020-10-29 08:06:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:09,315 INFO L93 Difference]: Finished difference Result 7670 states and 10004 transitions. [2020-10-29 08:06:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:06:09,317 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 466 [2020-10-29 08:06:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:09,338 INFO L225 Difference]: With dead ends: 7670 [2020-10-29 08:06:09,338 INFO L226 Difference]: Without dead ends: 3833 [2020-10-29 08:06:09,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-29 08:06:09,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3833 states. [2020-10-29 08:06:09,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3833 to 3133. [2020-10-29 08:06:09,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3133 states. [2020-10-29 08:06:09,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 3373 transitions. [2020-10-29 08:06:09,441 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 3373 transitions. Word has length 466 [2020-10-29 08:06:09,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:09,442 INFO L481 AbstractCegarLoop]: Abstraction has 3133 states and 3373 transitions. [2020-10-29 08:06:09,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:06:09,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 3373 transitions. [2020-10-29 08:06:09,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2020-10-29 08:06:09,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:09,460 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:09,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:06:09,461 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:09,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:09,461 INFO L82 PathProgramCache]: Analyzing trace with hash 227463066, now seen corresponding path program 1 times [2020-10-29 08:06:09,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:09,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607214282] [2020-10-29 08:06:09,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:09,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:09,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:09,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:12,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:14,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:14,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 599 [2020-10-29 08:06:14,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:06:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-29 08:06:14,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:14,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 358 [2020-10-29 08:06:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 08:06:14,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:14,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:14,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:14,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:14,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:14,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:14,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:06:14,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:14,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:14,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:14,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:14,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:14,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:14,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:14,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:06:14,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:14,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:06:14,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:14,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:14,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:14,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:06:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:14,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:14,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:14,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:06:14,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:14,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 08:06:14,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:14,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:14,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:14,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:14,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 08:06:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:15,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:15,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:06:15,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:15,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-29 08:06:15,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:15,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:06:15,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:15,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 08:06:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:15,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:15,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:06:15,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:15,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-29 08:06:15,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:15,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:15,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:15,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:15,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:06:15,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:15,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 08:06:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:15,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:15,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 08:06:15,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:15,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:06:15,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:15,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:15,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:15,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-29 08:06:15,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:15,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:16,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 383 proven. 106 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-10-29 08:06:16,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607214282] [2020-10-29 08:06:16,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:16,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:06:16,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013821285] [2020-10-29 08:06:16,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:06:16,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:16,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:06:16,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:06:16,072 INFO L87 Difference]: Start difference. First operand 3133 states and 3373 transitions. Second operand 8 states. [2020-10-29 08:06:21,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:21,929 INFO L93 Difference]: Finished difference Result 9693 states and 10655 transitions. [2020-10-29 08:06:21,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 08:06:21,930 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 579 [2020-10-29 08:06:21,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:21,966 INFO L225 Difference]: With dead ends: 9693 [2020-10-29 08:06:21,966 INFO L226 Difference]: Without dead ends: 6566 [2020-10-29 08:06:21,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:06:21,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6566 states. [2020-10-29 08:06:22,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6566 to 5531. [2020-10-29 08:06:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5531 states. [2020-10-29 08:06:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5531 states to 5531 states and 5980 transitions. [2020-10-29 08:06:22,137 INFO L78 Accepts]: Start accepts. Automaton has 5531 states and 5980 transitions. Word has length 579 [2020-10-29 08:06:22,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:22,138 INFO L481 AbstractCegarLoop]: Abstraction has 5531 states and 5980 transitions. [2020-10-29 08:06:22,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:06:22,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5531 states and 5980 transitions. [2020-10-29 08:06:22,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 908 [2020-10-29 08:06:22,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:22,180 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:22,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:06:22,180 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:22,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:22,181 INFO L82 PathProgramCache]: Analyzing trace with hash 138373186, now seen corresponding path program 1 times [2020-10-29 08:06:22,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:22,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444083133] [2020-10-29 08:06:22,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:22,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:22,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:22,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:23,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:26,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:27,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:27,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 929 [2020-10-29 08:06:27,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:06:27,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-29 08:06:27,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:27,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:27,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:06:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:06:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:06:27,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:27,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:27,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:27,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:27,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:27,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:27,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:06:27,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:27,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:27,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:27,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:27,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:06:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:27,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:27,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:28,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:28,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:06:28,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:28,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-29 08:06:28,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:28,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:28,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:06:28,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:28,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:06:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:28,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:28,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:28,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:06:28,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:28,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:06:28,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:28,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:06:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:28,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:28,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:06:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:28,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:28,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:28,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:06:28,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:28,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:06:28,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:28,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:28,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:28,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:06:28,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:28,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:28,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:06:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:28,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:28,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:28,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:06:28,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:28,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:06:28,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:28,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:28,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:28,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:06:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:28,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:28,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-29 08:06:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:28,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:28,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:28,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:06:28,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:28,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:06:28,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:28,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:06:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:28,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:28,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 08:06:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:28,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:28,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:28,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:06:28,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:28,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:06:28,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:28,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:28,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:28,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:06:28,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:28,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:29,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1734 backedges. 60 proven. 615 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2020-10-29 08:06:29,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444083133] [2020-10-29 08:06:29,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:29,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:29,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338201589] [2020-10-29 08:06:29,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:29,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:29,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:29,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:29,310 INFO L87 Difference]: Start difference. First operand 5531 states and 5980 transitions. Second operand 7 states. [2020-10-29 08:06:32,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:32,965 INFO L93 Difference]: Finished difference Result 11777 states and 12746 transitions. [2020-10-29 08:06:32,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:06:32,966 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 907 [2020-10-29 08:06:32,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:32,998 INFO L225 Difference]: With dead ends: 11777 [2020-10-29 08:06:32,998 INFO L226 Difference]: Without dead ends: 6252 [2020-10-29 08:06:33,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:06:33,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6252 states. [2020-10-29 08:06:33,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6252 to 6228. [2020-10-29 08:06:33,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6228 states. [2020-10-29 08:06:33,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6228 states to 6228 states and 6719 transitions. [2020-10-29 08:06:33,178 INFO L78 Accepts]: Start accepts. Automaton has 6228 states and 6719 transitions. Word has length 907 [2020-10-29 08:06:33,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:33,179 INFO L481 AbstractCegarLoop]: Abstraction has 6228 states and 6719 transitions. [2020-10-29 08:06:33,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:33,179 INFO L276 IsEmpty]: Start isEmpty. Operand 6228 states and 6719 transitions. [2020-10-29 08:06:33,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 992 [2020-10-29 08:06:33,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:33,204 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:33,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:06:33,205 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:33,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:33,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1349410578, now seen corresponding path program 1 times [2020-10-29 08:06:33,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:33,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997016942] [2020-10-29 08:06:33,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:33,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:33,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:33,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:38,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:38,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1013 [2020-10-29 08:06:38,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:06:38,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-29 08:06:38,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:38,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:38,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:38,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-29 08:06:38,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:06:38,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:38,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:38,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:38,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:38,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:38,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:38,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:06:38,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:38,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:38,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:38,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:38,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:38,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:38,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:06:38,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:38,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:06:38,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:38,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:38,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:38,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:38,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:38,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:38,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:06:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:38,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:39,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:39,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:06:39,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:39,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-29 08:06:39,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:39,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:39,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:39,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:39,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-29 08:06:39,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:39,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-29 08:06:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:39,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:39,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:39,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:06:39,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:39,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-29 08:06:39,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:39,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:39,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:39,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:39,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:06:39,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:39,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-29 08:06:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:39,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:39,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:39,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:06:39,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:39,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:06:39,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:39,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:39,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:39,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:06:39,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:39,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:39,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 696 [2020-10-29 08:06:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:39,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:39,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:39,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:06:39,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:39,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:06:39,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:39,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:06:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:39,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:39,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2020-10-29 08:06:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:39,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:39,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:39,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:06:39,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:39,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 08:06:39,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:39,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:39,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:39,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:06:39,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:39,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:40,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2111 backedges. 371 proven. 389 refuted. 0 times theorem prover too weak. 1351 trivial. 0 not checked. [2020-10-29 08:06:40,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997016942] [2020-10-29 08:06:40,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:40,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:40,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550607967] [2020-10-29 08:06:40,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:40,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:40,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:40,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:40,522 INFO L87 Difference]: Start difference. First operand 6228 states and 6719 transitions. Second operand 7 states. [2020-10-29 08:06:44,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:44,076 INFO L93 Difference]: Finished difference Result 12810 states and 13950 transitions. [2020-10-29 08:06:44,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:06:44,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 991 [2020-10-29 08:06:44,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:44,108 INFO L225 Difference]: With dead ends: 12810 [2020-10-29 08:06:44,109 INFO L226 Difference]: Without dead ends: 7264 [2020-10-29 08:06:44,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:06:44,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7264 states. [2020-10-29 08:06:44,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7264 to 7252. [2020-10-29 08:06:44,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7252 states. [2020-10-29 08:06:44,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7252 states to 7252 states and 7860 transitions. [2020-10-29 08:06:44,292 INFO L78 Accepts]: Start accepts. Automaton has 7252 states and 7860 transitions. Word has length 991 [2020-10-29 08:06:44,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:44,293 INFO L481 AbstractCegarLoop]: Abstraction has 7252 states and 7860 transitions. [2020-10-29 08:06:44,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:44,293 INFO L276 IsEmpty]: Start isEmpty. Operand 7252 states and 7860 transitions. [2020-10-29 08:06:44,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1155 [2020-10-29 08:06:44,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:44,318 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:44,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:06:44,319 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:44,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:44,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1592256844, now seen corresponding path program 1 times [2020-10-29 08:06:44,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:44,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493638047] [2020-10-29 08:06:44,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:44,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:44,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:45,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:45,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:46,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:49,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:49,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1178 [2020-10-29 08:06:49,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:06:49,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 08:06:49,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:49,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:49,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:06:49,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:06:49,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:06:49,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:49,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:49,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:49,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:49,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:49,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:49,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:06:49,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:49,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:49,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:49,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:49,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:06:49,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:49,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:49,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:49,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:06:50,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:06:50,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-29 08:06:50,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:06:50,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:50,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:06:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:50,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:06:50,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:50,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-29 08:06:50,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:50,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:50,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:06:50,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:50,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:06:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:50,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:06:50,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:50,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:06:50,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:06:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:50,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:50,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-29 08:06:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:50,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:06:50,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:50,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:06:50,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:06:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:50,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:51,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-29 08:06:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:51,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:51,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:51,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:06:51,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:51,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:06:51,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:51,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:06:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:51,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:51,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-29 08:06:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:51,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:51,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:51,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:06:51,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:51,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:06:51,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:51,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:51,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:51,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:06:51,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:51,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:51,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-29 08:06:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:51,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:51,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:51,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:06:51,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:51,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:06:51,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:51,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:51,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:51,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:06:51,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:51,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:52,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2631 backedges. 331 proven. 627 refuted. 0 times theorem prover too weak. 1673 trivial. 0 not checked. [2020-10-29 08:06:52,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493638047] [2020-10-29 08:06:52,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:52,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:52,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643067248] [2020-10-29 08:06:52,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:52,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:52,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:52,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:52,302 INFO L87 Difference]: Start difference. First operand 7252 states and 7860 transitions. Second operand 7 states. [2020-10-29 08:06:55,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:55,621 INFO L93 Difference]: Finished difference Result 14173 states and 15386 transitions. [2020-10-29 08:06:55,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:06:55,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1154 [2020-10-29 08:06:55,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:55,649 INFO L225 Difference]: With dead ends: 14173 [2020-10-29 08:06:55,650 INFO L226 Difference]: Without dead ends: 7603 [2020-10-29 08:06:55,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:06:55,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7603 states. [2020-10-29 08:06:55,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7603 to 7589. [2020-10-29 08:06:55,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7589 states. [2020-10-29 08:06:55,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7589 states to 7589 states and 8204 transitions. [2020-10-29 08:06:55,847 INFO L78 Accepts]: Start accepts. Automaton has 7589 states and 8204 transitions. Word has length 1154 [2020-10-29 08:06:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:55,849 INFO L481 AbstractCegarLoop]: Abstraction has 7589 states and 8204 transitions. [2020-10-29 08:06:55,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:55,849 INFO L276 IsEmpty]: Start isEmpty. Operand 7589 states and 8204 transitions. [2020-10-29 08:06:55,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1189 [2020-10-29 08:06:55,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:55,877 INFO L422 BasicCegarLoop]: trace histogram [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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:55,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:06:55,878 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:55,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:55,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1666579552, now seen corresponding path program 1 times [2020-10-29 08:06:55,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:55,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718995020] [2020-10-29 08:06:55,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:56,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:56,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:56,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:56,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:01,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:01,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1214 [2020-10-29 08:07:01,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:07:01,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-29 08:07:01,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:01,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:07:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-29 08:07:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:01,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:01,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:01,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:01,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:01,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:01,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:07:01,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:01,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:01,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:01,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:01,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:01,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:01,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:01,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:01,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:01,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:07:01,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:01,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-29 08:07:01,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:01,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:07:01,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:01,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:07:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:01,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:01,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:01,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:07:01,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:01,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-29 08:07:01,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:01,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:01,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:01,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 08:07:01,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:02,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:07:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:02,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:02,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:02,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:07:02,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:02,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:07:02,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:02,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-29 08:07:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:02,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:02,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:07:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:02,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:02,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:02,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:07:02,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:02,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:07:02,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:02,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:07:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:02,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:02,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:07:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:02,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:02,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:02,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:07:02,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:02,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 08:07:02,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:02,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:02,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:02,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:07:02,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:02,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:02,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:07:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:02,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:02,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:02,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:07:02,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:02,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:07:02,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:02,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:02,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:02,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:07:02,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:02,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:02,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:07:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:02,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:02,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:02,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:07:02,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:02,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:07:02,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:02,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:02,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:02,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:07:02,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:02,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:02,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:07:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:02,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:02,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:02,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:07:02,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:02,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 08:07:02,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:02,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:02,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:02,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:07:02,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:02,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:03,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3367 backedges. 263 proven. 740 refuted. 0 times theorem prover too weak. 2364 trivial. 0 not checked. [2020-10-29 08:07:03,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718995020] [2020-10-29 08:07:03,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:03,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:03,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626940918] [2020-10-29 08:07:03,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:03,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:03,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:03,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:03,898 INFO L87 Difference]: Start difference. First operand 7589 states and 8204 transitions. Second operand 7 states. [2020-10-29 08:07:07,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:07,935 INFO L93 Difference]: Finished difference Result 16207 states and 17627 transitions. [2020-10-29 08:07:07,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:07:07,937 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1188 [2020-10-29 08:07:07,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:07,968 INFO L225 Difference]: With dead ends: 16207 [2020-10-29 08:07:07,968 INFO L226 Difference]: Without dead ends: 9300 [2020-10-29 08:07:07,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:07:07,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9300 states. [2020-10-29 08:07:08,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9300 to 9294. [2020-10-29 08:07:08,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9294 states. [2020-10-29 08:07:08,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9294 states to 9294 states and 9991 transitions. [2020-10-29 08:07:08,200 INFO L78 Accepts]: Start accepts. Automaton has 9294 states and 9991 transitions. Word has length 1188 [2020-10-29 08:07:08,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:08,201 INFO L481 AbstractCegarLoop]: Abstraction has 9294 states and 9991 transitions. [2020-10-29 08:07:08,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:08,201 INFO L276 IsEmpty]: Start isEmpty. Operand 9294 states and 9991 transitions. [2020-10-29 08:07:08,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1365 [2020-10-29 08:07:08,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:08,237 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:08,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:07:08,238 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:08,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:08,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1911350556, now seen corresponding path program 1 times [2020-10-29 08:07:08,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:08,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946738591] [2020-10-29 08:07:08,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:08,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:09,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:09,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:13,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1388 [2020-10-29 08:07:13,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:07:13,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 08:07:13,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:13,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:13,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:13,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-29 08:07:13,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:07:13,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:13,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:13,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:13,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:13,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:13,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:07:13,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:13,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:13,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:13,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:13,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:13,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:13,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:13,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:13,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:07:13,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:13,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:07:13,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:13,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:13,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:13,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:07:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:13,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:14,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:14,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:07:14,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:14,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 08:07:14,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:14,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:14,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:14,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:14,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:14,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:14,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:07:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:14,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:14,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:14,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:07:14,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:14,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:07:14,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:14,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:14,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:14,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:14,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:14,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:14,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:07:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:14,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:14,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:14,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:07:14,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:14,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 08:07:14,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:14,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:07:14,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:14,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-29 08:07:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:14,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:14,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:14,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:07:14,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:14,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-29 08:07:14,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:14,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:07:14,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:14,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-29 08:07:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:15,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:15,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:15,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:07:15,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:15,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:07:15,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:15,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:15,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:15,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:07:15,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:15,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:15,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-29 08:07:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:15,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:15,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:15,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:07:15,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:15,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-29 08:07:15,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:15,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:15,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:15,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:07:15,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:15,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:16,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3357 backedges. 891 proven. 283 refuted. 0 times theorem prover too weak. 2183 trivial. 0 not checked. [2020-10-29 08:07:16,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946738591] [2020-10-29 08:07:16,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:16,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:16,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468562609] [2020-10-29 08:07:16,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:16,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:16,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:16,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:16,553 INFO L87 Difference]: Start difference. First operand 9294 states and 9991 transitions. Second operand 7 states. [2020-10-29 08:07:20,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:20,885 INFO L93 Difference]: Finished difference Result 17916 states and 19307 transitions. [2020-10-29 08:07:20,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:07:20,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1364 [2020-10-29 08:07:20,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:20,936 INFO L225 Difference]: With dead ends: 17916 [2020-10-29 08:07:20,936 INFO L226 Difference]: Without dead ends: 9304 [2020-10-29 08:07:20,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:07:20,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9304 states. [2020-10-29 08:07:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9304 to 9296. [2020-10-29 08:07:21,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9296 states. [2020-10-29 08:07:21,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9296 states to 9296 states and 9992 transitions. [2020-10-29 08:07:21,178 INFO L78 Accepts]: Start accepts. Automaton has 9296 states and 9992 transitions. Word has length 1364 [2020-10-29 08:07:21,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:21,180 INFO L481 AbstractCegarLoop]: Abstraction has 9296 states and 9992 transitions. [2020-10-29 08:07:21,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:21,181 INFO L276 IsEmpty]: Start isEmpty. Operand 9296 states and 9992 transitions. [2020-10-29 08:07:21,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1383 [2020-10-29 08:07:21,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:21,218 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:21,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:07:21,218 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:21,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:21,219 INFO L82 PathProgramCache]: Analyzing trace with hash -500483208, now seen corresponding path program 1 times [2020-10-29 08:07:21,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:21,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965238383] [2020-10-29 08:07:21,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:21,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:22,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:22,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:22,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:23,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:26,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:26,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1408 [2020-10-29 08:07:26,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:07:26,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-29 08:07:26,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:26,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:26,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:07:26,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1097 [2020-10-29 08:07:26,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 292 [2020-10-29 08:07:26,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:26,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:26,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:26,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:26,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:26,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:26,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:07:26,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:26,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:26,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:26,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:26,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:26,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:26,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:26,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:26,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:07:26,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:26,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:07:26,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:26,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:26,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:26,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:07:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:26,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:27,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:07:27,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:27,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 08:07:27,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:27,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:27,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:27,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:27,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:27,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:27,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:07:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:27,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:07:27,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:27,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:07:27,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:27,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:27,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:27,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:07:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:27,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:07:27,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:27,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:07:27,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:27,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:27,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:27,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:27,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:27,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:27,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:07:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:27,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:07:27,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:27,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:07:27,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:27,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:27,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:27,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-29 08:07:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:27,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:07:27,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:27,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-29 08:07:27,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:27,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:27,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:27,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:27,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-29 08:07:27,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:27,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1085 [2020-10-29 08:07:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:27,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:07:27,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:27,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 08:07:27,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:27,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 08:07:27,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:27,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1197 [2020-10-29 08:07:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:28,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:28,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:07:28,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:28,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-29 08:07:28,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:28,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:28,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:28,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:28,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-29 08:07:28,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:29,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3666 backedges. 1093 proven. 4 refuted. 0 times theorem prover too weak. 2569 trivial. 0 not checked. [2020-10-29 08:07:29,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965238383] [2020-10-29 08:07:29,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:29,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:29,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244355520] [2020-10-29 08:07:29,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:29,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:29,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:29,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:29,114 INFO L87 Difference]: Start difference. First operand 9296 states and 9992 transitions. Second operand 7 states. [2020-10-29 08:07:35,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:35,219 INFO L93 Difference]: Finished difference Result 19600 states and 21035 transitions. [2020-10-29 08:07:35,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:07:35,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1382 [2020-10-29 08:07:35,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:35,252 INFO L225 Difference]: With dead ends: 19600 [2020-10-29 08:07:35,253 INFO L226 Difference]: Without dead ends: 10647 [2020-10-29 08:07:35,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:07:35,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10647 states. [2020-10-29 08:07:35,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10647 to 9293. [2020-10-29 08:07:35,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9293 states. [2020-10-29 08:07:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9293 states to 9293 states and 9890 transitions. [2020-10-29 08:07:35,465 INFO L78 Accepts]: Start accepts. Automaton has 9293 states and 9890 transitions. Word has length 1382 [2020-10-29 08:07:35,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:35,467 INFO L481 AbstractCegarLoop]: Abstraction has 9293 states and 9890 transitions. [2020-10-29 08:07:35,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:35,467 INFO L276 IsEmpty]: Start isEmpty. Operand 9293 states and 9890 transitions. [2020-10-29 08:07:35,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1642 [2020-10-29 08:07:35,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:35,511 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:35,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:07:35,511 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:35,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:35,512 INFO L82 PathProgramCache]: Analyzing trace with hash 797335026, now seen corresponding path program 1 times [2020-10-29 08:07:35,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:35,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483654177] [2020-10-29 08:07:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:36,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:36,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:37,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:37,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:37,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:40,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:40,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1671 [2020-10-29 08:07:40,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:07:40,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-29 08:07:40,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:40,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:40,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:40,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 966 [2020-10-29 08:07:40,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 08:07:40,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:41,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:41,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:41,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:41,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:41,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:41,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:07:41,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:41,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:41,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:41,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:41,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:41,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:41,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:07:41,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:41,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:07:41,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:41,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:41,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:41,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:41,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:41,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:41,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:07:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:41,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:41,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:41,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:07:41,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:07:41,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:41,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:41,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:41,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:07:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:41,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:41,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:41,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:07:41,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:41,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:07:41,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:41,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:41,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:41,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:41,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:41,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:41,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:07:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:41,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:41,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:41,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:07:41,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:41,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:07:41,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:41,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:41,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:41,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:07:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:41,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:41,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:41,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:07:41,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:41,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:07:41,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:41,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:41,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:41,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-29 08:07:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:41,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:41,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:41,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:07:41,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:41,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-29 08:07:41,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:41,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-29 08:07:41,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:41,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-29 08:07:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:41,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:41,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:41,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:07:41,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:41,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-29 08:07:41,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:41,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:41,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:41,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:41,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:07:41,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:41,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1064 [2020-10-29 08:07:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:41,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:41,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:41,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:07:41,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:41,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:07:41,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:41,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:41,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:41,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:07:41,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:41,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:42,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1202 [2020-10-29 08:07:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:42,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:42,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:42,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:07:42,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:42,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-29 08:07:42,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:42,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-29 08:07:42,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:42,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:42,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1456 [2020-10-29 08:07:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:42,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:42,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:42,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:07:42,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:42,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:07:42,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:42,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:42,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:42,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:07:42,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:42,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:43,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5828 backedges. 798 proven. 323 refuted. 0 times theorem prover too weak. 4707 trivial. 0 not checked. [2020-10-29 08:07:43,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483654177] [2020-10-29 08:07:43,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:43,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:43,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796274194] [2020-10-29 08:07:43,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:43,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:43,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:43,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:43,978 INFO L87 Difference]: Start difference. First operand 9293 states and 9890 transitions. Second operand 7 states. [2020-10-29 08:07:48,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:48,449 INFO L93 Difference]: Finished difference Result 19264 states and 20559 transitions. [2020-10-29 08:07:48,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:07:48,451 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1641 [2020-10-29 08:07:48,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:48,479 INFO L225 Difference]: With dead ends: 19264 [2020-10-29 08:07:48,479 INFO L226 Difference]: Without dead ends: 10316 [2020-10-29 08:07:48,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:07:48,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10316 states. [2020-10-29 08:07:48,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10316 to 10310. [2020-10-29 08:07:48,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10310 states. [2020-10-29 08:07:48,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10310 states to 10310 states and 10931 transitions. [2020-10-29 08:07:48,692 INFO L78 Accepts]: Start accepts. Automaton has 10310 states and 10931 transitions. Word has length 1641 [2020-10-29 08:07:48,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:48,694 INFO L481 AbstractCegarLoop]: Abstraction has 10310 states and 10931 transitions. [2020-10-29 08:07:48,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:48,694 INFO L276 IsEmpty]: Start isEmpty. Operand 10310 states and 10931 transitions. [2020-10-29 08:07:48,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1662 [2020-10-29 08:07:48,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:48,739 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:48,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:07:48,740 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:48,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:48,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1376454898, now seen corresponding path program 1 times [2020-10-29 08:07:48,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:48,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500703813] [2020-10-29 08:07:48,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:49,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:49,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:50,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:50,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1691 [2020-10-29 08:07:54,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:07:54,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5132 [2020-10-29 08:07:54,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1098 [2020-10-29 08:07:54,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-29 08:07:54,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:54,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:54,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:54,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:54,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:54,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:07:54,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:54,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 08:07:54,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:54,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:54,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:07:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:54,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:07:54,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:54,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:07:54,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:54,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:54,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:54,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:54,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:07:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:54,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:07:54,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:54,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:07:54,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:54,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:54,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:07:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:54,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:07:54,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:54,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:07:54,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:54,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:54,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:54,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:54,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:07:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:07:54,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:54,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:07:54,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:54,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:54,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:54,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:54,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-29 08:07:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:54,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:55,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:55,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:07:55,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:07:55,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:55,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:55,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 974 [2020-10-29 08:07:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:55,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:55,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:55,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:07:55,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:55,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:07:55,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:55,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:55,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:55,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:55,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:07:55,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:55,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1084 [2020-10-29 08:07:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:55,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:55,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:55,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:07:55,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:55,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 08:07:55,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:55,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:07:55,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:55,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1222 [2020-10-29 08:07:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:55,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:55,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:55,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:07:55,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:55,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 08:07:55,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:55,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:55,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:55,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-29 08:07:55,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:55,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:55,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1476 [2020-10-29 08:07:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:55,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:55,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:55,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:07:55,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:55,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:07:55,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:55,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:55,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:55,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:07:55,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:55,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:57,128 INFO L134 CoverageAnalysis]: Checked inductivity of 5832 backedges. 1003 proven. 272 refuted. 0 times theorem prover too weak. 4557 trivial. 0 not checked. [2020-10-29 08:07:57,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500703813] [2020-10-29 08:07:57,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:57,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:57,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748424278] [2020-10-29 08:07:57,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:57,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:57,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:57,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:57,131 INFO L87 Difference]: Start difference. First operand 10310 states and 10931 transitions. Second operand 7 states. [2020-10-29 08:08:01,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:01,324 INFO L93 Difference]: Finished difference Result 22671 states and 24100 transitions. [2020-10-29 08:08:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:08:01,330 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1661 [2020-10-29 08:08:01,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:01,370 INFO L225 Difference]: With dead ends: 22671 [2020-10-29 08:08:01,370 INFO L226 Difference]: Without dead ends: 10991 [2020-10-29 08:08:01,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:08:01,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10991 states. [2020-10-29 08:08:01,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10991 to 10963. [2020-10-29 08:08:01,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10963 states. [2020-10-29 08:08:01,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10963 states to 10963 states and 11356 transitions. [2020-10-29 08:08:01,596 INFO L78 Accepts]: Start accepts. Automaton has 10963 states and 11356 transitions. Word has length 1661 [2020-10-29 08:08:01,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:01,599 INFO L481 AbstractCegarLoop]: Abstraction has 10963 states and 11356 transitions. [2020-10-29 08:08:01,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:01,599 INFO L276 IsEmpty]: Start isEmpty. Operand 10963 states and 11356 transitions. [2020-10-29 08:08:01,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2062 [2020-10-29 08:08:01,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:01,660 INFO L422 BasicCegarLoop]: trace histogram [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, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:08:01,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:08:01,661 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:01,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:01,662 INFO L82 PathProgramCache]: Analyzing trace with hash -817232018, now seen corresponding path program 1 times [2020-10-29 08:08:01,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:01,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134150704] [2020-10-29 08:08:01,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:02,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:02,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:03,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:03,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:07,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:07,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2095 [2020-10-29 08:08:07,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:08:07,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-29 08:08:07,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:07,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 796 [2020-10-29 08:08:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-29 08:08:07,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:07,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:07,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:07,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:07,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:07,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:07,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:08:07,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:07,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:07,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:07,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:07,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:07,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:07,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:07,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:07,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:07,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:07,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 08:08:07,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:07,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:07,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:07,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:07,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:07,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:07,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:07,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:07,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:07,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:08:07,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:07,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:08:07,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:07,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:07,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:07,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:07,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:07,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:07,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:08:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:07,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:07,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:07,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:07,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:07,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:08:07,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:07,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:07,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:07,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:08:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:07,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:07,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:07,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:08:07,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:07,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:08:07,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:07,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:07,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:07,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:07,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:07,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:07,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:08:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:07,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:07,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:07,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:08:07,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:07,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 08:08:07,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:07,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:07,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:07,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:07,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:08:07,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:07,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-29 08:08:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:07,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:08,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:08,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:08:08,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-29 08:08:08,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:08,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-29 08:08:08,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:08,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 974 [2020-10-29 08:08:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:08,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:08,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:08,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-29 08:08:08,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 08:08:08,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:08,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-29 08:08:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:08,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:08:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:08,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:08,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:08,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 08:08:08,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:08,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:08:08,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:08,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:08,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:08,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1275 [2020-10-29 08:08:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:08,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:08,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:08,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:08:08,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:08,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:08:08,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:08,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:08:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:08,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:08,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1346 [2020-10-29 08:08:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:08,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:08,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:08,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:08:08,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:08,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 08:08:08,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:08,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-29 08:08:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:08,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:08,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1600 [2020-10-29 08:08:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:08,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:08,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:08,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-29 08:08:08,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:08,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:08:08,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:08,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-29 08:08:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:08,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1765 [2020-10-29 08:08:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:08,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:09,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:09,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-29 08:08:09,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:09,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-29 08:08:09,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:09,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-29 08:08:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:09,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 7613 backedges. 905 proven. 787 refuted. 0 times theorem prover too weak. 5921 trivial. 0 not checked. [2020-10-29 08:08:11,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134150704] [2020-10-29 08:08:11,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:11,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:11,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824901905] [2020-10-29 08:08:11,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:11,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:11,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:11,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:11,304 INFO L87 Difference]: Start difference. First operand 10963 states and 11356 transitions. Second operand 7 states. [2020-10-29 08:08:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:16,506 INFO L93 Difference]: Finished difference Result 24657 states and 25564 transitions. [2020-10-29 08:08:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:08:16,509 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2061 [2020-10-29 08:08:16,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:16,554 INFO L225 Difference]: With dead ends: 24657 [2020-10-29 08:08:16,554 INFO L226 Difference]: Without dead ends: 14039 [2020-10-29 08:08:16,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:08:16,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14039 states. [2020-10-29 08:08:16,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14039 to 13006. [2020-10-29 08:08:16,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13006 states. [2020-10-29 08:08:16,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13006 states to 13006 states and 13459 transitions. [2020-10-29 08:08:16,800 INFO L78 Accepts]: Start accepts. Automaton has 13006 states and 13459 transitions. Word has length 2061 [2020-10-29 08:08:16,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:16,801 INFO L481 AbstractCegarLoop]: Abstraction has 13006 states and 13459 transitions. [2020-10-29 08:08:16,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:16,802 INFO L276 IsEmpty]: Start isEmpty. Operand 13006 states and 13459 transitions. [2020-10-29 08:08:16,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2124 [2020-10-29 08:08:16,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:16,864 INFO L422 BasicCegarLoop]: trace histogram [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, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:16,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:08:16,865 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:16,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:16,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1123231958, now seen corresponding path program 1 times [2020-10-29 08:08:16,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:16,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942526189] [2020-10-29 08:08:16,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:17,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:17,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:18,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:18,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2157 [2020-10-29 08:08:22,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:08:22,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5113 [2020-10-29 08:08:22,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:22,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 796 [2020-10-29 08:08:22,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-29 08:08:22,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:22,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:22,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:22,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 08:08:22,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:22,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:22,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:22,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:22,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:22,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:22,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:08:22,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:22,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:22,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:08:22,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:22,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:08:22,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:22,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:22,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:22,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:08:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:22,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:22,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:22,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:08:22,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:22,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:22,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:22,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:08:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:22,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:08:22,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:22,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:08:22,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:22,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:22,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:22,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:08:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:22,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:23,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:08:23,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:23,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:08:23,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:23,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:08:23,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:23,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-29 08:08:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:23,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:23,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:08:23,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:23,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-29 08:08:23,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:23,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:23,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:23,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:23,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-29 08:08:23,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:23,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2020-10-29 08:08:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:23,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:23,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-29 08:08:23,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:23,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 08:08:23,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:23,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-29 08:08:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:23,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:23,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:08:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:23,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:23,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 08:08:23,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:23,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:08:23,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:23,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:23,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:23,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1337 [2020-10-29 08:08:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:23,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:23,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:08:23,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:23,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:08:23,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:23,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:08:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:23,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:23,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-29 08:08:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:23,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:24,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:24,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:08:24,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:24,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 08:08:24,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:24,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-29 08:08:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:24,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:24,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-29 08:08:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:24,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:24,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:24,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-29 08:08:24,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:24,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:08:24,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:24,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-29 08:08:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:24,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:24,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1827 [2020-10-29 08:08:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:24,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:24,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:24,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-29 08:08:24,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:24,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 08:08:24,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:24,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:24,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:24,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-29 08:08:24,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:24,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 993 proven. 973 refuted. 0 times theorem prover too weak. 5921 trivial. 0 not checked. [2020-10-29 08:08:27,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942526189] [2020-10-29 08:08:27,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:27,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:27,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564086335] [2020-10-29 08:08:27,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:27,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:27,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:27,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:27,189 INFO L87 Difference]: Start difference. First operand 13006 states and 13459 transitions. Second operand 7 states. [2020-10-29 08:08:32,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:32,146 INFO L93 Difference]: Finished difference Result 26016 states and 26925 transitions. [2020-10-29 08:08:32,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:08:32,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2123 [2020-10-29 08:08:32,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:32,190 INFO L225 Difference]: With dead ends: 26016 [2020-10-29 08:08:32,191 INFO L226 Difference]: Without dead ends: 13355 [2020-10-29 08:08:32,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:08:32,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13355 states. [2020-10-29 08:08:32,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13355 to 13347. [2020-10-29 08:08:32,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13347 states. [2020-10-29 08:08:32,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13347 states to 13347 states and 13802 transitions. [2020-10-29 08:08:32,442 INFO L78 Accepts]: Start accepts. Automaton has 13347 states and 13802 transitions. Word has length 2123 [2020-10-29 08:08:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:32,444 INFO L481 AbstractCegarLoop]: Abstraction has 13347 states and 13802 transitions. [2020-10-29 08:08:32,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:32,444 INFO L276 IsEmpty]: Start isEmpty. Operand 13347 states and 13802 transitions. [2020-10-29 08:08:32,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2155 [2020-10-29 08:08:32,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:32,501 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:32,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:08:32,502 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:32,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:32,503 INFO L82 PathProgramCache]: Analyzing trace with hash 700959292, now seen corresponding path program 1 times [2020-10-29 08:08:32,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:32,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085914215] [2020-10-29 08:08:32,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:33,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:33,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking...