/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 13:28:52,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 13:28:52,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 13:28:52,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 13:28:52,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 13:28:52,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 13:28:52,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 13:28:52,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 13:28:52,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 13:28:52,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 13:28:52,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 13:28:52,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 13:28:52,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 13:28:52,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 13:28:52,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 13:28:52,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 13:28:52,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 13:28:52,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 13:28:52,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 13:28:52,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 13:28:52,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 13:28:52,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 13:28:52,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 13:28:52,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 13:28:52,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 13:28:52,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 13:28:52,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 13:28:52,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 13:28:52,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 13:28:52,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 13:28:52,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 13:28:52,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 13:28:52,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 13:28:52,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 13:28:52,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 13:28:52,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 13:28:52,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 13:28:52,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 13:28:52,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 13:28:52,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 13:28:52,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 13:28:52,912 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 [2020-10-28 13:28:52,959 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 13:28:52,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 13:28:52,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 13:28:52,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 13:28:52,965 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 13:28:52,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 13:28:52,965 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 13:28:52,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 13:28:52,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 13:28:52,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 13:28:52,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 13:28:52,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 13:28:52,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 13:28:52,968 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 13:28:52,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 13:28:52,968 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 13:28:52,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 13:28:52,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 13:28:52,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 13:28:52,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 13:28:52,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 13:28:52,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 13:28:52,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 13:28:52,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 13:28:52,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 13:28:52,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 13:28:52,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 13:28:52,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 13:28:52,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 13:28:52,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 13:28:53,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 13:28:53,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 13:28:53,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 13:28:53,402 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 13:28:53,403 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 13:28:53,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label54.c [2020-10-28 13:28:53,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df21a8731/491d6e26b36a46f3ade1b6e9d10f54e4/FLAGbd6e33a9a [2020-10-28 13:28:54,512 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 13:28:54,514 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label54.c [2020-10-28 13:28:54,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df21a8731/491d6e26b36a46f3ade1b6e9d10f54e4/FLAGbd6e33a9a [2020-10-28 13:28:55,057 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df21a8731/491d6e26b36a46f3ade1b6e9d10f54e4 [2020-10-28 13:28:55,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 13:28:55,069 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 13:28:55,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 13:28:55,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 13:28:55,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 13:28:55,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:28:55" (1/1) ... [2020-10-28 13:28:55,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b38e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:28:55, skipping insertion in model container [2020-10-28 13:28:55,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:28:55" (1/1) ... [2020-10-28 13:28:55,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 13:28:55,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 13:28:56,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 13:28:56,192 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 13:28:56,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 13:28:56,597 INFO L208 MainTranslator]: Completed translation [2020-10-28 13:28:56,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:28:56 WrapperNode [2020-10-28 13:28:56,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 13:28:56,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 13:28:56,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 13:28:56,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 13:28:56,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:28:56" (1/1) ... [2020-10-28 13:28:56,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:28:56" (1/1) ... [2020-10-28 13:28:56,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:28:56" (1/1) ... [2020-10-28 13:28:56,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:28:56" (1/1) ... [2020-10-28 13:28:56,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:28:56" (1/1) ... [2020-10-28 13:28:56,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:28:56" (1/1) ... [2020-10-28 13:28:56,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:28:56" (1/1) ... [2020-10-28 13:28:56,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 13:28:56,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 13:28:56,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 13:28:56,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 13:28:56,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:28:56" (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 [2020-10-28 13:28:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 13:28:56,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 13:28:56,923 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 13:28:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 13:28:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-28 13:28:56,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 13:28:56,925 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 13:28:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-28 13:28:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 13:28:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 13:28:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 13:28:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 13:28:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 13:28:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 13:28:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 13:28:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 13:28:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 13:28:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 13:28:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 13:28:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 13:28:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 13:28:59,428 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 13:28:59,428 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 13:28:59,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:28:59 BoogieIcfgContainer [2020-10-28 13:28:59,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 13:28:59,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 13:28:59,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 13:28:59,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 13:28:59,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 01:28:55" (1/3) ... [2020-10-28 13:28:59,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2e3b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:28:59, skipping insertion in model container [2020-10-28 13:28:59,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:28:56" (2/3) ... [2020-10-28 13:28:59,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2e3b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:28:59, skipping insertion in model container [2020-10-28 13:28:59,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:28:59" (3/3) ... [2020-10-28 13:28:59,440 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label54.c [2020-10-28 13:28:59,453 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 13:28:59,459 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 13:28:59,473 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 13:28:59,506 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 13:28:59,506 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 13:28:59,506 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 13:28:59,507 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 13:28:59,507 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 13:28:59,507 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 13:28:59,507 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 13:28:59,507 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 13:28:59,536 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-28 13:28:59,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-28 13:28:59,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:28:59,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:28:59,544 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:28:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:28:59,551 INFO L82 PathProgramCache]: Analyzing trace with hash 323410068, now seen corresponding path program 1 times [2020-10-28 13:28:59,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:28:59,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857882081] [2020-10-28 13:28:59,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:28:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:28:59,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:00,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:00,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 13:29:00,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:00,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 621 [2020-10-28 13:29:00,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:00,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:00,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:29:00,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:29:00,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-28 13:29:00,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 13:29:00,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:29:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:00,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:00,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:00,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:29:00,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 13:29:00,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:00,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:29:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:29:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:29:00,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:29:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:29:00,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857882081] [2020-10-28 13:29:00,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:29:00,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 13:29:00,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623940949] [2020-10-28 13:29:00,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 13:29:00,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:29:00,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 13:29:00,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 13:29:00,620 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-28 13:29:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:29:05,603 INFO L93 Difference]: Finished difference Result 1174 states and 2170 transitions. [2020-10-28 13:29:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:29:05,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-28 13:29:05,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:29:05,642 INFO L225 Difference]: With dead ends: 1174 [2020-10-28 13:29:05,643 INFO L226 Difference]: Without dead ends: 697 [2020-10-28 13:29:05,659 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 [2020-10-28 13:29:05,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-28 13:29:05,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 693. [2020-10-28 13:29:05,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-28 13:29:05,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1015 transitions. [2020-10-28 13:29:05,799 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1015 transitions. Word has length 32 [2020-10-28 13:29:05,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:29:05,800 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1015 transitions. [2020-10-28 13:29:05,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 13:29:05,800 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1015 transitions. [2020-10-28 13:29:05,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-28 13:29:05,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:29:05,805 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:29:05,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 13:29:05,806 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:29:05,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:29:05,807 INFO L82 PathProgramCache]: Analyzing trace with hash -950769452, now seen corresponding path program 1 times [2020-10-28 13:29:05,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:29:05,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680222849] [2020-10-28 13:29:05,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:29:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:05,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:06,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:06,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:06,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 13:29:06,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:29:06,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1111 [2020-10-28 13:29:06,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:06,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:06,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:29:06,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:29:06,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 13:29:06,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:29:07,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:29:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:07,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:07,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:07,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:29:07,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:07,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 13:29:07,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:07,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:07,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:29:07,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:29:07,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:29:07,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:29:07,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:29:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:07,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:07,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:07,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 13:29:07,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:07,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-28 13:29:07,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:07,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:07,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:29:07,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:29:07,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 13:29:07,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:29:07,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680222849] [2020-10-28 13:29:07,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:29:07,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 13:29:07,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015446329] [2020-10-28 13:29:07,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:29:07,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:29:07,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:29:07,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:29:07,481 INFO L87 Difference]: Start difference. First operand 693 states and 1015 transitions. Second operand 7 states. [2020-10-28 13:29:12,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:29:12,831 INFO L93 Difference]: Finished difference Result 2090 states and 3102 transitions. [2020-10-28 13:29:12,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:29:12,832 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-28 13:29:12,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:29:12,843 INFO L225 Difference]: With dead ends: 2090 [2020-10-28 13:29:12,843 INFO L226 Difference]: Without dead ends: 1403 [2020-10-28 13:29:12,846 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 [2020-10-28 13:29:12,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2020-10-28 13:29:12,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1379. [2020-10-28 13:29:12,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-10-28 13:29:12,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1813 transitions. [2020-10-28 13:29:12,913 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1813 transitions. Word has length 108 [2020-10-28 13:29:12,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:29:12,914 INFO L481 AbstractCegarLoop]: Abstraction has 1379 states and 1813 transitions. [2020-10-28 13:29:12,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:29:12,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1813 transitions. [2020-10-28 13:29:12,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-28 13:29:12,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:29:12,922 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 13:29:12,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 13:29:12,923 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:29:12,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:29:12,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1064944130, now seen corresponding path program 1 times [2020-10-28 13:29:12,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:29:12,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195197731] [2020-10-28 13:29:12,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:29:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:13,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:13,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:13,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:13,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:14,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:14,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:17,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:17,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-28 13:29:17,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 13:29:17,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4041 [2020-10-28 13:29:17,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:17,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:17,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:29:17,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-28 13:29:17,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 13:29:17,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:17,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:29:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:17,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:17,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:17,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:29:17,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:17,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 13:29:17,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:17,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:29:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:29:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:29:17,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:17,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:29:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:17,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:17,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:17,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-28 13:29:17,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:17,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 13:29:17,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:17,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:17,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:29:17,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:29:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 13:29:17,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:17,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-28 13:29:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:17,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:17,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:17,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:17,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 13:29:17,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:29:17,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 13:29:17,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:17,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:29:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:29:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 13:29:17,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 111 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 13:29:17,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195197731] [2020-10-28 13:29:17,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:29:17,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 13:29:17,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616317539] [2020-10-28 13:29:17,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 13:29:17,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:29:17,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 13:29:17,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:29:17,688 INFO L87 Difference]: Start difference. First operand 1379 states and 1813 transitions. Second operand 6 states. [2020-10-28 13:29:24,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:29:24,787 INFO L93 Difference]: Finished difference Result 3477 states and 4749 transitions. [2020-10-28 13:29:24,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 13:29:24,788 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-10-28 13:29:24,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:29:24,806 INFO L225 Difference]: With dead ends: 3477 [2020-10-28 13:29:24,806 INFO L226 Difference]: Without dead ends: 2104 [2020-10-28 13:29:24,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:29:24,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-10-28 13:29:24,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2088. [2020-10-28 13:29:24,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2088 states. [2020-10-28 13:29:24,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2635 transitions. [2020-10-28 13:29:24,922 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2635 transitions. Word has length 195 [2020-10-28 13:29:24,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:29:24,926 INFO L481 AbstractCegarLoop]: Abstraction has 2088 states and 2635 transitions. [2020-10-28 13:29:24,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 13:29:24,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2635 transitions. [2020-10-28 13:29:24,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-28 13:29:24,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:29:24,936 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 13:29:24,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 13:29:24,937 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:29:24,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:29:24,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1145654046, now seen corresponding path program 1 times [2020-10-28 13:29:24,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:29:24,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312970295] [2020-10-28 13:29:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:29:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:25,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:25,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:26,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:29,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:29,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-28 13:29:29,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:29:29,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4274 [2020-10-28 13:29:29,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:29,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:29:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-28 13:29:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-28 13:29:29,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:29:29,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:29:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:29,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:29,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:29,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:29:29,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:29,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:29:29,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:29,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:29:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:29:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:29:29,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 13:29:29,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:29:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:29,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:29,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:29,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 13:29:29,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:29,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 13:29:29,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:29,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:29,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:29:29,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:29:29,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 13:29:29,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:29,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 13:29:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:29,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:29,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:29,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 13:29:29,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:29,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-28 13:29:29,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:29,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:29,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:29:29,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:29:29,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-28 13:29:29,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:29:30,222 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 13:29:30,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312970295] [2020-10-28 13:29:30,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:29:30,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:29:30,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873125339] [2020-10-28 13:29:30,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:29:30,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:29:30,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:29:30,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:29:30,228 INFO L87 Difference]: Start difference. First operand 2088 states and 2635 transitions. Second operand 7 states. [2020-10-28 13:29:37,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:29:37,393 INFO L93 Difference]: Finished difference Result 5275 states and 7000 transitions. [2020-10-28 13:29:37,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:29:37,394 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 261 [2020-10-28 13:29:37,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:29:37,414 INFO L225 Difference]: With dead ends: 5275 [2020-10-28 13:29:37,414 INFO L226 Difference]: Without dead ends: 3193 [2020-10-28 13:29:37,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:29:37,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2020-10-28 13:29:37,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 3138. [2020-10-28 13:29:37,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3138 states. [2020-10-28 13:29:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 3769 transitions. [2020-10-28 13:29:37,525 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 3769 transitions. Word has length 261 [2020-10-28 13:29:37,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:29:37,526 INFO L481 AbstractCegarLoop]: Abstraction has 3138 states and 3769 transitions. [2020-10-28 13:29:37,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:29:37,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 3769 transitions. [2020-10-28 13:29:37,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-10-28 13:29:37,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:29:37,533 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:29:37,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 13:29:37,534 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:29:37,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:29:37,534 INFO L82 PathProgramCache]: Analyzing trace with hash -409222594, now seen corresponding path program 1 times [2020-10-28 13:29:37,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:29:37,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720361651] [2020-10-28 13:29:37,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:29:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:37,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:37,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:38,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:42,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:42,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-10-28 13:29:42,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:29:42,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-28 13:29:42,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:42,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:42,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:29:42,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:29:42,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-28 13:29:42,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 13:29:42,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:29:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:42,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:42,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:42,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:29:42,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:42,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 13:29:42,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:42,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:42,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:29:42,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:29:42,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:29:42,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:42,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:29:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:42,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:43,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:43,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-28 13:29:43,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:43,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-28 13:29:43,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:43,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:29:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:29:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-28 13:29:43,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:43,868 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:29:43,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720361651] [2020-10-28 13:29:43,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:29:43,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 13:29:43,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967615857] [2020-10-28 13:29:43,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:29:43,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:29:43,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:29:43,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:29:43,872 INFO L87 Difference]: Start difference. First operand 3138 states and 3769 transitions. Second operand 7 states. [2020-10-28 13:29:44,020 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-28 13:29:49,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:29:49,173 INFO L93 Difference]: Finished difference Result 6336 states and 7642 transitions. [2020-10-28 13:29:49,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:29:49,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 281 [2020-10-28 13:29:49,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:29:49,191 INFO L225 Difference]: With dead ends: 6336 [2020-10-28 13:29:49,192 INFO L226 Difference]: Without dead ends: 3204 [2020-10-28 13:29:49,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:29:49,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states. [2020-10-28 13:29:49,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 3152. [2020-10-28 13:29:49,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3152 states. [2020-10-28 13:29:49,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3152 states to 3152 states and 3780 transitions. [2020-10-28 13:29:49,311 INFO L78 Accepts]: Start accepts. Automaton has 3152 states and 3780 transitions. Word has length 281 [2020-10-28 13:29:49,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:29:49,312 INFO L481 AbstractCegarLoop]: Abstraction has 3152 states and 3780 transitions. [2020-10-28 13:29:49,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:29:49,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3152 states and 3780 transitions. [2020-10-28 13:29:49,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-28 13:29:49,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:29:49,319 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:29:49,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 13:29:49,320 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:29:49,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:29:49,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1193347640, now seen corresponding path program 1 times [2020-10-28 13:29:49,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:29:49,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34640058] [2020-10-28 13:29:49,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:29:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:49,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:49,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:49,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:49,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:49,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:52,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:52,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:54,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:54,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-28 13:29:54,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 13:29:54,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-28 13:29:54,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:54,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:29:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-28 13:29:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-10-28 13:29:54,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:54,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:29:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:54,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:54,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:54,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:29:54,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:54,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:29:54,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:54,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:29:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:29:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:29:54,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:54,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:29:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:54,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:54,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:54,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-28 13:29:54,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:54,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 13:29:54,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:54,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:54,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:29:54,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:29:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 13:29:54,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:29:54,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-28 13:29:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:54,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:54,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:54,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:54,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 13:29:54,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:29:54,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-28 13:29:54,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:54,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:29:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:29:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 13:29:54,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:54,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-28 13:29:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:29:54,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:29:55,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:29:55,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 13:29:55,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:29:55,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-28 13:29:55,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:29:55,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:29:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:29:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:29:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-28 13:29:55,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:29:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 316 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-28 13:29:55,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34640058] [2020-10-28 13:29:55,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:29:55,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 13:29:55,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594664504] [2020-10-28 13:29:55,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 13:29:55,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:29:55,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 13:29:55,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 13:29:55,499 INFO L87 Difference]: Start difference. First operand 3152 states and 3780 transitions. Second operand 8 states. [2020-10-28 13:30:01,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:30:01,494 INFO L93 Difference]: Finished difference Result 7746 states and 9682 transitions. [2020-10-28 13:30:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:30:01,495 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 304 [2020-10-28 13:30:01,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:30:01,516 INFO L225 Difference]: With dead ends: 7746 [2020-10-28 13:30:01,516 INFO L226 Difference]: Without dead ends: 4206 [2020-10-28 13:30:01,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-28 13:30:01,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2020-10-28 13:30:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 3823. [2020-10-28 13:30:01,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3823 states. [2020-10-28 13:30:01,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 4154 transitions. [2020-10-28 13:30:01,625 INFO L78 Accepts]: Start accepts. Automaton has 3823 states and 4154 transitions. Word has length 304 [2020-10-28 13:30:01,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:30:01,626 INFO L481 AbstractCegarLoop]: Abstraction has 3823 states and 4154 transitions. [2020-10-28 13:30:01,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 13:30:01,626 INFO L276 IsEmpty]: Start isEmpty. Operand 3823 states and 4154 transitions. [2020-10-28 13:30:01,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-10-28 13:30:01,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:30:01,633 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 13:30:01,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 13:30:01,634 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:30:01,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:30:01,634 INFO L82 PathProgramCache]: Analyzing trace with hash 619411080, now seen corresponding path program 1 times [2020-10-28 13:30:01,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:30:01,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651369400] [2020-10-28 13:30:01,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:30:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:01,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:01,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:03,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:05,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:05,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 366 [2020-10-28 13:30:05,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:30:05,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4156 [2020-10-28 13:30:05,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:05,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:05,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:30:05,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 167 [2020-10-28 13:30:05,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-28 13:30:05,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:05,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:30:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:05,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:05,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:05,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:30:05,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:05,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 13:30:05,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:06,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:06,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:06,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:06,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:06,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:06,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:30:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:06,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:06,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:06,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-28 13:30:06,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:06,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-28 13:30:06,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:06,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:30:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-28 13:30:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:06,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-28 13:30:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:06,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:06,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:06,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-28 13:30:06,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:06,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-28 13:30:06,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:06,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:06,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:30:06,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:30:06,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-28 13:30:06,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:06,666 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 202 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 13:30:06,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651369400] [2020-10-28 13:30:06,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:30:06,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:30:06,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599494782] [2020-10-28 13:30:06,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:30:06,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:30:06,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:30:06,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:30:06,668 INFO L87 Difference]: Start difference. First operand 3823 states and 4154 transitions. Second operand 7 states. [2020-10-28 13:30:11,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:30:11,324 INFO L93 Difference]: Finished difference Result 9373 states and 10329 transitions. [2020-10-28 13:30:11,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 13:30:11,325 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 352 [2020-10-28 13:30:11,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:30:11,349 INFO L225 Difference]: With dead ends: 9373 [2020-10-28 13:30:11,350 INFO L226 Difference]: Without dead ends: 5556 [2020-10-28 13:30:11,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:30:11,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5556 states. [2020-10-28 13:30:11,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5556 to 5183. [2020-10-28 13:30:11,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5183 states. [2020-10-28 13:30:11,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 5591 transitions. [2020-10-28 13:30:11,500 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 5591 transitions. Word has length 352 [2020-10-28 13:30:11,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:30:11,501 INFO L481 AbstractCegarLoop]: Abstraction has 5183 states and 5591 transitions. [2020-10-28 13:30:11,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:30:11,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 5591 transitions. [2020-10-28 13:30:11,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-10-28 13:30:11,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:30:11,512 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:30:11,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 13:30:11,512 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:30:11,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:30:11,514 INFO L82 PathProgramCache]: Analyzing trace with hash 386358764, now seen corresponding path program 1 times [2020-10-28 13:30:11,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:30:11,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184694366] [2020-10-28 13:30:11,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:30:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:11,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:12,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:13,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:13,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 448 [2020-10-28 13:30:13,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:30:13,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1428 [2020-10-28 13:30:13,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:13,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:13,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:30:13,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-28 13:30:13,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-28 13:30:13,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:13,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:30:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:13,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:13,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:13,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:30:13,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:13,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:30:13,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:13,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:13,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:30:13,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:30:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:13,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:13,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:13,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-28 13:30:13,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:13,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-28 13:30:13,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:13,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:13,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:30:13,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:13,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-28 13:30:13,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:30:13,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-28 13:30:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:13,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:13,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:13,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-28 13:30:13,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:13,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-28 13:30:13,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:13,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:30:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:30:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-28 13:30:13,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 13:30:14,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184694366] [2020-10-28 13:30:14,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:30:14,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:30:14,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917315585] [2020-10-28 13:30:14,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:30:14,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:30:14,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:30:14,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:30:14,183 INFO L87 Difference]: Start difference. First operand 5183 states and 5591 transitions. Second operand 7 states. [2020-10-28 13:30:18,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:30:18,754 INFO L93 Difference]: Finished difference Result 12108 states and 13241 transitions. [2020-10-28 13:30:18,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:30:18,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 434 [2020-10-28 13:30:18,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:30:18,783 INFO L225 Difference]: With dead ends: 12108 [2020-10-28 13:30:18,784 INFO L226 Difference]: Without dead ends: 6931 [2020-10-28 13:30:18,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:30:18,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6931 states. [2020-10-28 13:30:18,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6931 to 6566. [2020-10-28 13:30:18,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6566 states. [2020-10-28 13:30:18,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6566 states to 6566 states and 7059 transitions. [2020-10-28 13:30:18,964 INFO L78 Accepts]: Start accepts. Automaton has 6566 states and 7059 transitions. Word has length 434 [2020-10-28 13:30:18,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:30:18,965 INFO L481 AbstractCegarLoop]: Abstraction has 6566 states and 7059 transitions. [2020-10-28 13:30:18,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:30:18,966 INFO L276 IsEmpty]: Start isEmpty. Operand 6566 states and 7059 transitions. [2020-10-28 13:30:18,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2020-10-28 13:30:18,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:30:18,981 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 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] [2020-10-28 13:30:18,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 13:30:18,982 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:30:18,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:30:18,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1757060266, now seen corresponding path program 1 times [2020-10-28 13:30:18,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:30:18,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678114496] [2020-10-28 13:30:18,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:30:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:19,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:19,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:22,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:24,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:24,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 511 [2020-10-28 13:30:24,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:30:24,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-28 13:30:24,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:24,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:24,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:30:24,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:30:24,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 13:30:24,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:24,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:30:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:24,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:24,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:24,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:30:24,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:24,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 13:30:24,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:24,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:30:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:30:24,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:24,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:30:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:24,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:24,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:24,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 13:30:24,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:24,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-28 13:30:24,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:24,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:24,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:30:24,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:30:24,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 13:30:24,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:24,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 13:30:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:24,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:24,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:24,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 13:30:24,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:24,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 13:30:24,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:24,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:24,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:24,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-28 13:30:24,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:24,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:24,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-10-28 13:30:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:24,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:24,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:24,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 13:30:24,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:24,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 13:30:24,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:24,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:24,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-28 13:30:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:24,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:24,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2020-10-28 13:30:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:24,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:24,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:24,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 13:30:24,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:24,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 13:30:24,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:24,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:24,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:24,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-28 13:30:24,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:24,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:25,111 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 96 proven. 255 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-10-28 13:30:25,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678114496] [2020-10-28 13:30:25,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:30:25,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:30:25,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835774032] [2020-10-28 13:30:25,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:30:25,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:30:25,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:30:25,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:30:25,122 INFO L87 Difference]: Start difference. First operand 6566 states and 7059 transitions. Second operand 7 states. [2020-10-28 13:30:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:30:28,956 INFO L93 Difference]: Finished difference Result 13835 states and 14852 transitions. [2020-10-28 13:30:28,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:30:28,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 493 [2020-10-28 13:30:28,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:30:28,980 INFO L225 Difference]: With dead ends: 13835 [2020-10-28 13:30:28,981 INFO L226 Difference]: Without dead ends: 7275 [2020-10-28 13:30:28,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:30:29,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7275 states. [2020-10-28 13:30:29,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7275 to 6912. [2020-10-28 13:30:29,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6912 states. [2020-10-28 13:30:29,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6912 states to 6912 states and 7411 transitions. [2020-10-28 13:30:29,154 INFO L78 Accepts]: Start accepts. Automaton has 6912 states and 7411 transitions. Word has length 493 [2020-10-28 13:30:29,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:30:29,155 INFO L481 AbstractCegarLoop]: Abstraction has 6912 states and 7411 transitions. [2020-10-28 13:30:29,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:30:29,155 INFO L276 IsEmpty]: Start isEmpty. Operand 6912 states and 7411 transitions. [2020-10-28 13:30:29,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2020-10-28 13:30:29,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:30:29,176 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:30:29,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 13:30:29,176 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:30:29,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:30:29,177 INFO L82 PathProgramCache]: Analyzing trace with hash -453762264, now seen corresponding path program 1 times [2020-10-28 13:30:29,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:30:29,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207464333] [2020-10-28 13:30:29,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:30:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:29,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:29,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:32,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:33,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:33,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 650 [2020-10-28 13:30:33,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:30:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4300 [2020-10-28 13:30:33,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:33,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:30:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-28 13:30:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-28 13:30:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:33,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:30:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:33,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:33,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:33,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:30:33,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:33,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:30:33,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:33,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:33,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:33,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:33,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:33,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:33,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:30:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:33,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:33,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:33,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-28 13:30:33,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:33,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-28 13:30:33,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:33,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:30:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-28 13:30:33,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:34,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-28 13:30:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:34,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:34,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:34,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 13:30:34,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:34,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-28 13:30:34,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:34,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:30:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:30:34,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-28 13:30:34,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:34,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-28 13:30:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:34,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:34,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:34,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 13:30:34,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:34,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 13:30:34,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:34,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:34,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:34,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-28 13:30:34,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:34,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:34,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-28 13:30:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:34,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:34,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:34,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 13:30:34,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:34,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-28 13:30:34,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:34,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:34,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:34,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-28 13:30:34,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:34,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 263 proven. 195 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-28 13:30:34,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207464333] [2020-10-28 13:30:34,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:30:34,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:30:34,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473938013] [2020-10-28 13:30:34,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:30:34,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:30:34,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:30:34,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:30:34,947 INFO L87 Difference]: Start difference. First operand 6912 states and 7411 transitions. Second operand 7 states. [2020-10-28 13:30:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:30:39,659 INFO L93 Difference]: Finished difference Result 14857 states and 15954 transitions. [2020-10-28 13:30:39,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 13:30:39,660 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 632 [2020-10-28 13:30:39,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:30:39,682 INFO L225 Difference]: With dead ends: 14857 [2020-10-28 13:30:39,683 INFO L226 Difference]: Without dead ends: 7946 [2020-10-28 13:30:39,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:30:39,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7946 states. [2020-10-28 13:30:39,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7946 to 7936. [2020-10-28 13:30:39,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7936 states. [2020-10-28 13:30:39,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7936 states to 7936 states and 8483 transitions. [2020-10-28 13:30:39,859 INFO L78 Accepts]: Start accepts. Automaton has 7936 states and 8483 transitions. Word has length 632 [2020-10-28 13:30:39,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:30:39,860 INFO L481 AbstractCegarLoop]: Abstraction has 7936 states and 8483 transitions. [2020-10-28 13:30:39,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:30:39,860 INFO L276 IsEmpty]: Start isEmpty. Operand 7936 states and 8483 transitions. [2020-10-28 13:30:39,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2020-10-28 13:30:39,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:30:39,870 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 13:30:39,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 13:30:39,870 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:30:39,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:30:39,871 INFO L82 PathProgramCache]: Analyzing trace with hash 27499610, now seen corresponding path program 1 times [2020-10-28 13:30:39,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:30:39,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122745718] [2020-10-28 13:30:39,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:30:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:40,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:40,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:42,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:43,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:43,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 711 [2020-10-28 13:30:43,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:30:43,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3469 [2020-10-28 13:30:43,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:43,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:30:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-28 13:30:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-28 13:30:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:43,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:30:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:43,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:43,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:43,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:30:43,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:43,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:30:43,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:43,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:43,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:43,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:43,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:43,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:43,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:30:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:43,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:43,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:43,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-28 13:30:43,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:43,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 13:30:43,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:43,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:43,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:43,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:43,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:43,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:43,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-28 13:30:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:43,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:44,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:44,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-28 13:30:44,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:44,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-28 13:30:44,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:44,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:30:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-28 13:30:44,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:44,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-28 13:30:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:44,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:44,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:44,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 13:30:44,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:44,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-28 13:30:44,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:44,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:44,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:30:44,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:30:44,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-28 13:30:44,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:44,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-28 13:30:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:44,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:44,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:44,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 13:30:44,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:44,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 13:30:44,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:44,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-28 13:30:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:44,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 361 proven. 69 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2020-10-28 13:30:44,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122745718] [2020-10-28 13:30:44,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:30:44,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:30:44,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090188194] [2020-10-28 13:30:44,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:30:44,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:30:44,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:30:44,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:30:44,814 INFO L87 Difference]: Start difference. First operand 7936 states and 8483 transitions. Second operand 7 states. [2020-10-28 13:30:49,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:30:49,313 INFO L93 Difference]: Finished difference Result 15886 states and 17023 transitions. [2020-10-28 13:30:49,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 13:30:49,317 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 693 [2020-10-28 13:30:49,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:30:49,341 INFO L225 Difference]: With dead ends: 15886 [2020-10-28 13:30:49,341 INFO L226 Difference]: Without dead ends: 8295 [2020-10-28 13:30:49,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 13:30:49,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8295 states. [2020-10-28 13:30:49,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8295 to 8277. [2020-10-28 13:30:49,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8277 states. [2020-10-28 13:30:49,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8277 states to 8277 states and 8833 transitions. [2020-10-28 13:30:49,578 INFO L78 Accepts]: Start accepts. Automaton has 8277 states and 8833 transitions. Word has length 693 [2020-10-28 13:30:49,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:30:49,579 INFO L481 AbstractCegarLoop]: Abstraction has 8277 states and 8833 transitions. [2020-10-28 13:30:49,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:30:49,579 INFO L276 IsEmpty]: Start isEmpty. Operand 8277 states and 8833 transitions. [2020-10-28 13:30:49,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2020-10-28 13:30:49,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:30:49,590 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 13:30:49,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 13:30:49,590 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:30:49,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:30:49,591 INFO L82 PathProgramCache]: Analyzing trace with hash -413152354, now seen corresponding path program 1 times [2020-10-28 13:30:49,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:30:49,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122050219] [2020-10-28 13:30:49,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:30:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:49,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:49,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:51,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:53,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:53,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 713 [2020-10-28 13:30:53,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:30:53,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3965 [2020-10-28 13:30:53,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:53,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:53,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:30:53,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-28 13:30:53,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-28 13:30:53,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:53,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:30:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:53,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:53,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:53,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:30:53,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:53,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:30:53,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:53,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:53,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:53,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:53,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:53,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:53,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:30:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:53,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:53,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:53,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-28 13:30:53,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:53,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 13:30:53,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:53,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:53,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:53,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:53,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:54,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-28 13:30:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:54,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:54,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:54,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-28 13:30:54,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:54,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-28 13:30:54,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:54,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:30:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:30:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-28 13:30:54,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:54,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-28 13:30:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:54,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:54,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:54,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 13:30:54,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:54,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 13:30:54,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:54,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:30:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:30:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-28 13:30:54,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:54,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-28 13:30:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:30:54,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:30:54,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:30:54,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 13:30:54,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:30:54,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 13:30:54,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:30:54,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:30:54,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:30:54,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-28 13:30:54,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:30:54,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:30:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 361 proven. 69 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2020-10-28 13:30:54,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122050219] [2020-10-28 13:30:54,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:30:54,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:30:54,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650290357] [2020-10-28 13:30:54,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:30:54,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:30:54,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:30:54,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:30:54,872 INFO L87 Difference]: Start difference. First operand 8277 states and 8833 transitions. Second operand 7 states. [2020-10-28 13:31:01,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:31:01,769 INFO L93 Difference]: Finished difference Result 19952 states and 21533 transitions. [2020-10-28 13:31:01,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:31:01,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 695 [2020-10-28 13:31:01,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:31:01,800 INFO L225 Difference]: With dead ends: 19952 [2020-10-28 13:31:01,801 INFO L226 Difference]: Without dead ends: 11681 [2020-10-28 13:31:01,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:31:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11681 states. [2020-10-28 13:31:02,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11681 to 11338. [2020-10-28 13:31:02,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11338 states. [2020-10-28 13:31:02,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11338 states to 11338 states and 12113 transitions. [2020-10-28 13:31:02,031 INFO L78 Accepts]: Start accepts. Automaton has 11338 states and 12113 transitions. Word has length 695 [2020-10-28 13:31:02,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:31:02,032 INFO L481 AbstractCegarLoop]: Abstraction has 11338 states and 12113 transitions. [2020-10-28 13:31:02,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:31:02,033 INFO L276 IsEmpty]: Start isEmpty. Operand 11338 states and 12113 transitions. [2020-10-28 13:31:02,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 741 [2020-10-28 13:31:02,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:31:02,046 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:31:02,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 13:31:02,047 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:31:02,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:31:02,047 INFO L82 PathProgramCache]: Analyzing trace with hash 188906024, now seen corresponding path program 1 times [2020-10-28 13:31:02,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:31:02,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927183255] [2020-10-28 13:31:02,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:31:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:02,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:02,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:03,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:03,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 760 [2020-10-28 13:31:03,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:31:03,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1612 [2020-10-28 13:31:03,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:03,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:03,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:31:03,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 654 [2020-10-28 13:31:03,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-28 13:31:03,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:03,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:31:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:03,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:03,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:03,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:31:03,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:03,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:31:03,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:03,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:03,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:03,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:03,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:03,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:03,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:31:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:03,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:04,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:04,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-28 13:31:04,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:04,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 13:31:04,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:04,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:04,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:04,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:04,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:04,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-28 13:31:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:04,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:04,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:04,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 13:31:04,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:04,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 13:31:04,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:04,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:04,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:04,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-28 13:31:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:04,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:04,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:04,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 13:31:04,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:04,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 13:31:04,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:04,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:04,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:04,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-28 13:31:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:04,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:04,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:04,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 13:31:04,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:04,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 13:31:04,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:04,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:04,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:31:04,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:04,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-28 13:31:04,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:04,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-28 13:31:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:04,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:04,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:04,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:04,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 13:31:04,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:31:04,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 13:31:04,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:04,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:31:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 13:31:04,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 142 proven. 5 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2020-10-28 13:31:04,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927183255] [2020-10-28 13:31:04,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:31:04,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 13:31:04,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598007389] [2020-10-28 13:31:04,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 13:31:04,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:31:04,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 13:31:04,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:31:04,658 INFO L87 Difference]: Start difference. First operand 11338 states and 12113 transitions. Second operand 5 states. [2020-10-28 13:31:08,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:31:08,359 INFO L93 Difference]: Finished difference Result 24018 states and 25713 transitions. [2020-10-28 13:31:08,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:31:08,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 740 [2020-10-28 13:31:08,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:31:08,396 INFO L225 Difference]: With dead ends: 24018 [2020-10-28 13:31:08,397 INFO L226 Difference]: Without dead ends: 13366 [2020-10-28 13:31:08,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:31:08,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13366 states. [2020-10-28 13:31:08,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13366 to 13362. [2020-10-28 13:31:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13362 states. [2020-10-28 13:31:08,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13362 states to 13362 states and 14206 transitions. [2020-10-28 13:31:08,664 INFO L78 Accepts]: Start accepts. Automaton has 13362 states and 14206 transitions. Word has length 740 [2020-10-28 13:31:08,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:31:08,665 INFO L481 AbstractCegarLoop]: Abstraction has 13362 states and 14206 transitions. [2020-10-28 13:31:08,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 13:31:08,665 INFO L276 IsEmpty]: Start isEmpty. Operand 13362 states and 14206 transitions. [2020-10-28 13:31:08,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1312 [2020-10-28 13:31:08,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:31:08,702 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:31:08,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 13:31:08,702 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:31:08,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:31:08,703 INFO L82 PathProgramCache]: Analyzing trace with hash 2122657934, now seen corresponding path program 1 times [2020-10-28 13:31:08,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:31:08,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977936212] [2020-10-28 13:31:08,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:31:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:09,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:09,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:11,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:12,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:14,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:14,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:14,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1339 [2020-10-28 13:31:14,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 13:31:14,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5153 [2020-10-28 13:31:14,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:14,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:31:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1128 [2020-10-28 13:31:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 13:31:14,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:14,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:31:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:14,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:14,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:14,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:31:14,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:14,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:31:14,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:14,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:14,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:14,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:14,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:14,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:14,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:31:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:14,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:14,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:14,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-28 13:31:14,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:14,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 13:31:14,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:14,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:14,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:14,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-28 13:31:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:14,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:14,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:14,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 13:31:14,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 13:31:14,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:14,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:14,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:14,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-28 13:31:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:14,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:14,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:14,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 13:31:14,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:14,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 13:31:14,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:14,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:14,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:14,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:14,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:14,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:14,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-28 13:31:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:14,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:14,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:14,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 13:31:14,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:14,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 13:31:14,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:14,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:14,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:14,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:14,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-28 13:31:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:14,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:14,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:14,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 13:31:14,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:14,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 13:31:14,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:14,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:14,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:14,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:14,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:14,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:14,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 716 [2020-10-28 13:31:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:14,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:14,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:14,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 13:31:14,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:14,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 13:31:14,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:14,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:14,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:14,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 860 [2020-10-28 13:31:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:14,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:14,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:14,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-28 13:31:14,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:14,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 13:31:14,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:14,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:14,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:14,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2020-10-28 13:31:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:14,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:14,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:14,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 13:31:14,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:14,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 13:31:14,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:14,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:31:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 13:31:14,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:15,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1112 [2020-10-28 13:31:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:15,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:15,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:15,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 13:31:15,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 13:31:15,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:15,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:31:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:31:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-28 13:31:15,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:16,253 INFO L134 CoverageAnalysis]: Checked inductivity of 4280 backedges. 1259 proven. 2 refuted. 0 times theorem prover too weak. 3019 trivial. 0 not checked. [2020-10-28 13:31:16,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977936212] [2020-10-28 13:31:16,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:31:16,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:31:16,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327782776] [2020-10-28 13:31:16,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:31:16,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:31:16,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:31:16,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:31:16,257 INFO L87 Difference]: Start difference. First operand 13362 states and 14206 transitions. Second operand 7 states. [2020-10-28 13:31:20,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:31:20,980 INFO L93 Difference]: Finished difference Result 27437 states and 29396 transitions. [2020-10-28 13:31:20,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 13:31:20,982 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1311 [2020-10-28 13:31:20,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:31:21,020 INFO L225 Difference]: With dead ends: 27437 [2020-10-28 13:31:21,020 INFO L226 Difference]: Without dead ends: 13379 [2020-10-28 13:31:21,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:31:21,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13379 states. [2020-10-28 13:31:21,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13379 to 13339. [2020-10-28 13:31:21,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13339 states. [2020-10-28 13:31:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13339 states to 13339 states and 13877 transitions. [2020-10-28 13:31:21,289 INFO L78 Accepts]: Start accepts. Automaton has 13339 states and 13877 transitions. Word has length 1311 [2020-10-28 13:31:21,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:31:21,290 INFO L481 AbstractCegarLoop]: Abstraction has 13339 states and 13877 transitions. [2020-10-28 13:31:21,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:31:21,291 INFO L276 IsEmpty]: Start isEmpty. Operand 13339 states and 13877 transitions. [2020-10-28 13:31:21,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1432 [2020-10-28 13:31:21,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:31:21,336 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 13:31:21,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 13:31:21,337 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:31:21,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:31:21,338 INFO L82 PathProgramCache]: Analyzing trace with hash -553272034, now seen corresponding path program 1 times [2020-10-28 13:31:21,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:31:21,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29014737] [2020-10-28 13:31:21,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:31:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:21,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:22,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:24,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:26,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:26,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:26,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1461 [2020-10-28 13:31:26,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 13:31:26,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5172 [2020-10-28 13:31:26,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:26,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:26,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:31:26,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1128 [2020-10-28 13:31:26,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 297 [2020-10-28 13:31:26,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:27,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:31:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:27,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:27,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:27,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:31:27,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:27,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:31:27,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:27,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:27,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:27,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:27,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:27,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:27,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:31:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:27,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:27,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:27,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-28 13:31:27,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:27,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 13:31:27,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:27,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:27,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:27,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-28 13:31:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:27,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:27,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:27,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 13:31:27,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:27,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 13:31:27,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:27,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:27,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:27,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:27,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:27,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:27,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-28 13:31:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:27,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:27,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:27,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 13:31:27,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:27,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 13:31:27,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:27,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:27,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:27,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-28 13:31:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:27,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:27,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:27,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 13:31:27,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:27,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 13:31:27,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:27,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:27,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:27,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:27,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-28 13:31:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:27,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:27,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:27,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 13:31:27,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:27,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 13:31:27,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:27,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:27,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:27,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 716 [2020-10-28 13:31:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:27,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:27,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:27,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 13:31:27,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:27,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 13:31:27,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:27,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:27,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:27,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 860 [2020-10-28 13:31:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:27,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:27,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:27,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-28 13:31:27,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:27,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 13:31:27,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:27,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:27,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:27,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2020-10-28 13:31:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:27,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:27,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:27,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 13:31:27,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:27,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 13:31:27,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:27,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:31:27,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:27,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 13:31:27,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:27,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1112 [2020-10-28 13:31:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:27,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:28,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:28,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-28 13:31:28,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:28,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-28 13:31:28,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:28,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:31:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:31:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 298 [2020-10-28 13:31:28,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:28,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:31:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:28,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:28,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:28,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 13:31:28,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:28,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 13:31:28,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:28,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 13:31:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:31:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 13:31:28,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:30,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4352 backedges. 1331 proven. 2 refuted. 0 times theorem prover too weak. 3019 trivial. 0 not checked. [2020-10-28 13:31:30,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29014737] [2020-10-28 13:31:30,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:31:30,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 13:31:30,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852995704] [2020-10-28 13:31:30,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 13:31:30,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:31:30,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 13:31:30,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 13:31:30,027 INFO L87 Difference]: Start difference. First operand 13339 states and 13877 transitions. Second operand 8 states. [2020-10-28 13:31:36,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:31:36,144 INFO L93 Difference]: Finished difference Result 26341 states and 27421 transitions. [2020-10-28 13:31:36,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 13:31:36,145 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1431 [2020-10-28 13:31:36,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:31:36,178 INFO L225 Difference]: With dead ends: 26341 [2020-10-28 13:31:36,178 INFO L226 Difference]: Without dead ends: 13688 [2020-10-28 13:31:36,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-28 13:31:36,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13688 states. [2020-10-28 13:31:36,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13688 to 13341. [2020-10-28 13:31:36,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13341 states. [2020-10-28 13:31:36,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13341 states to 13341 states and 13874 transitions. [2020-10-28 13:31:36,418 INFO L78 Accepts]: Start accepts. Automaton has 13341 states and 13874 transitions. Word has length 1431 [2020-10-28 13:31:36,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:31:36,420 INFO L481 AbstractCegarLoop]: Abstraction has 13341 states and 13874 transitions. [2020-10-28 13:31:36,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 13:31:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 13341 states and 13874 transitions. [2020-10-28 13:31:36,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1791 [2020-10-28 13:31:36,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:31:36,468 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 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, 8, 8, 8, 8, 8, 8, 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:31:36,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 13:31:36,469 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:31:36,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:31:36,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1371245508, now seen corresponding path program 1 times [2020-10-28 13:31:36,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:31:36,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192673078] [2020-10-28 13:31:36,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:31:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:36,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:37,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:37,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:39,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:41,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:41,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1822 [2020-10-28 13:31:41,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 13:31:41,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-28 13:31:41,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:41,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:41,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:31:41,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1128 [2020-10-28 13:31:41,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-28 13:31:41,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:31:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:42,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:42,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:42,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:31:42,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:42,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:31:42,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:42,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:42,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:42,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:31:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:42,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:42,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:42,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-28 13:31:42,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:42,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 13:31:42,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:42,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:42,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:42,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:42,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:42,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:42,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-28 13:31:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:42,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:42,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:42,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 13:31:42,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:42,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 13:31:42,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:42,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:42,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:42,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:42,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:42,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:42,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-28 13:31:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:42,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:42,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:42,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 13:31:42,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:42,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 13:31:42,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:42,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:42,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:42,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:42,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:42,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-28 13:31:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:42,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:42,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:42,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 13:31:42,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:42,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 13:31:42,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:42,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:42,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:42,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:42,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:42,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:42,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-28 13:31:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:42,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:42,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:42,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 13:31:42,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:42,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-28 13:31:42,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:42,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:42,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:42,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:42,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:42,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:42,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 716 [2020-10-28 13:31:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:42,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:42,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:42,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 13:31:42,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:42,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 13:31:42,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:42,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:42,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 860 [2020-10-28 13:31:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:42,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:42,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:42,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-28 13:31:42,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:42,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 13:31:42,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:42,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:42,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:42,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2020-10-28 13:31:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:42,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:42,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:42,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 13:31:42,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:42,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 13:31:42,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:42,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:31:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:42,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 13:31:42,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:42,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1112 [2020-10-28 13:31:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:42,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:43,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:43,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-28 13:31:43,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:43,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-28 13:31:43,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:43,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:43,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:31:43,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:31:43,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-28 13:31:43,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:43,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1396 [2020-10-28 13:31:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:43,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:43,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:43,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-28 13:31:43,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:43,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-28 13:31:43,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:43,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-28 13:31:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:43,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:43,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1650 [2020-10-28 13:31:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:43,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:43,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:43,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 13:31:43,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 13:31:43,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:43,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-28 13:31:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:45,176 INFO L134 CoverageAnalysis]: Checked inductivity of 6850 backedges. 1443 proven. 366 refuted. 0 times theorem prover too weak. 5041 trivial. 0 not checked. [2020-10-28 13:31:45,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192673078] [2020-10-28 13:31:45,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:31:45,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:31:45,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500392952] [2020-10-28 13:31:45,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:31:45,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:31:45,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:31:45,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:31:45,180 INFO L87 Difference]: Start difference. First operand 13341 states and 13874 transitions. Second operand 7 states. [2020-10-28 13:31:49,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:31:49,888 INFO L93 Difference]: Finished difference Result 29390 states and 30751 transitions. [2020-10-28 13:31:49,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 13:31:49,889 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1790 [2020-10-28 13:31:49,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:31:49,929 INFO L225 Difference]: With dead ends: 29390 [2020-10-28 13:31:49,929 INFO L226 Difference]: Without dead ends: 16735 [2020-10-28 13:31:49,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:31:49,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16735 states. [2020-10-28 13:31:50,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16735 to 15720. [2020-10-28 13:31:50,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15720 states. [2020-10-28 13:31:50,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15720 states to 15720 states and 16405 transitions. [2020-10-28 13:31:50,240 INFO L78 Accepts]: Start accepts. Automaton has 15720 states and 16405 transitions. Word has length 1790 [2020-10-28 13:31:50,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:31:50,242 INFO L481 AbstractCegarLoop]: Abstraction has 15720 states and 16405 transitions. [2020-10-28 13:31:50,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:31:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 15720 states and 16405 transitions. [2020-10-28 13:31:50,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2052 [2020-10-28 13:31:50,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:31:50,304 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:31:50,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 13:31:50,304 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:31:50,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:31:50,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1882158134, now seen corresponding path program 1 times [2020-10-28 13:31:50,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:31:50,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38665620] [2020-10-28 13:31:50,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:31:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:51,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:51,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:55,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:55,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2083 [2020-10-28 13:31:55,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:31:55,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5218 [2020-10-28 13:31:55,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:55,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:55,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:31:55,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 851 [2020-10-28 13:31:55,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-28 13:31:55,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:56,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:31:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:56,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:56,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:56,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:31:56,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:56,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 13:31:56,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:56,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:56,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:56,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:31:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:56,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:56,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:56,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-28 13:31:56,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:56,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 13:31:56,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:56,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:56,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:56,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:56,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:56,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:56,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-28 13:31:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:56,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:56,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:56,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 13:31:56,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:56,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 13:31:56,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:56,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:56,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:56,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:56,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:56,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:56,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-28 13:31:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:56,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:56,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 13:31:56,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:56,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 13:31:56,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:56,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:56,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:56,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-28 13:31:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:56,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:56,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:56,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 13:31:56,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:56,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 13:31:56,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:56,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:56,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:56,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-28 13:31:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:56,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:56,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:56,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-28 13:31:56,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:56,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-28 13:31:56,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:56,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:56,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:31:56,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:31:56,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-28 13:31:56,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:56,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-28 13:31:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:56,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:57,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:57,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-28 13:31:57,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:57,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-28 13:31:57,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:57,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:57,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:31:57,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:31:57,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-28 13:31:57,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:57,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1114 [2020-10-28 13:31:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:57,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:57,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:57,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-28 13:31:57,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:57,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 13:31:57,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:57,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:57,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:57,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-28 13:31:57,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:57,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:57,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1355 [2020-10-28 13:31:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:57,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:57,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:57,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-28 13:31:57,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:57,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 13:31:57,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:57,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:57,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:57,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-28 13:31:57,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:57,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:57,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1426 [2020-10-28 13:31:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:57,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:57,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:57,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-28 13:31:57,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:57,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-28 13:31:57,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:57,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:57,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:57,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-28 13:31:57,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:57,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:57,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1680 [2020-10-28 13:31:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:57,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:58,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:58,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-28 13:31:58,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:58,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 13:31:58,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:58,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:58,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:58,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-28 13:31:58,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:58,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:31:58,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1911 [2020-10-28 13:31:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:31:58,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:31:58,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:31:58,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 13:31:58,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:31:58,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 13:31:58,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:31:58,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:31:58,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:31:58,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-28 13:31:58,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:31:58,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:00,620 INFO L134 CoverageAnalysis]: Checked inductivity of 8047 backedges. 1202 proven. 900 refuted. 0 times theorem prover too weak. 5945 trivial. 0 not checked. [2020-10-28 13:32:00,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38665620] [2020-10-28 13:32:00,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:32:00,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:32:00,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267113993] [2020-10-28 13:32:00,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:32:00,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:32:00,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:32:00,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:32:00,624 INFO L87 Difference]: Start difference. First operand 15720 states and 16405 transitions. Second operand 7 states. [2020-10-28 13:32:04,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:32:04,989 INFO L93 Difference]: Finished difference Result 30762 states and 32130 transitions. [2020-10-28 13:32:04,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:32:04,991 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2051 [2020-10-28 13:32:04,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:32:05,024 INFO L225 Difference]: With dead ends: 30762 [2020-10-28 13:32:05,025 INFO L226 Difference]: Without dead ends: 15728 [2020-10-28 13:32:05,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 13:32:05,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15728 states. [2020-10-28 13:32:05,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15728 to 15720. [2020-10-28 13:32:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15720 states. [2020-10-28 13:32:05,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15720 states to 15720 states and 16401 transitions. [2020-10-28 13:32:05,324 INFO L78 Accepts]: Start accepts. Automaton has 15720 states and 16401 transitions. Word has length 2051 [2020-10-28 13:32:05,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:32:05,325 INFO L481 AbstractCegarLoop]: Abstraction has 15720 states and 16401 transitions. [2020-10-28 13:32:05,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:32:05,325 INFO L276 IsEmpty]: Start isEmpty. Operand 15720 states and 16401 transitions. [2020-10-28 13:32:05,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2213 [2020-10-28 13:32:05,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:32:05,394 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:32:05,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 13:32:05,395 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:32:05,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:32:05,396 INFO L82 PathProgramCache]: Analyzing trace with hash -565579856, now seen corresponding path program 1 times [2020-10-28 13:32:05,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:32:05,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605619487] [2020-10-28 13:32:05,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:32:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:05,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:06,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:06,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:10,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:10,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2248 [2020-10-28 13:32:10,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:32:10,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5143 [2020-10-28 13:32:10,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:10,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:10,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:32:10,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1016 [2020-10-28 13:32:10,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-28 13:32:10,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:11,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:32:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:11,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:11,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:11,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:32:11,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:11,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:32:11,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:11,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:11,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:11,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:32:11,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:11,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:11,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:32:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:11,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:11,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:11,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-28 13:32:11,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:11,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 13:32:11,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:11,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:11,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:11,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:32:11,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:11,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:11,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-28 13:32:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:11,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:11,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:11,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 13:32:11,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:11,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 13:32:11,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:11,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:32:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:11,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:11,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-28 13:32:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:11,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:11,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:11,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 13:32:11,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:11,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 13:32:11,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:11,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:32:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:11,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:11,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-28 13:32:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:11,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:11,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:11,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 13:32:11,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:11,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 13:32:11,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:11,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:32:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:11,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:11,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-28 13:32:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:11,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:11,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:11,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 13:32:11,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:11,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 13:32:11,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:11,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:11,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:11,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:32:11,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:11,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:11,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 716 [2020-10-28 13:32:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:11,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:11,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:11,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 13:32:11,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:11,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 13:32:11,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:11,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:11,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:11,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:32:11,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:11,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:11,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 860 [2020-10-28 13:32:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:11,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:11,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:11,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-28 13:32:11,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:11,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 13:32:11,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:11,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:11,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:32:11,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:32:11,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-28 13:32:11,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:11,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2020-10-28 13:32:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:11,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:11,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:11,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-28 13:32:11,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:11,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-28 13:32:11,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:11,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:32:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:32:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-28 13:32:11,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:12,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1275 [2020-10-28 13:32:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:12,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:12,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:12,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-28 13:32:12,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 13:32:12,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:12,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-28 13:32:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:12,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1516 [2020-10-28 13:32:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:12,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:12,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:12,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-28 13:32:12,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:12,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 13:32:12,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:12,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-28 13:32:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:12,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:12,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1587 [2020-10-28 13:32:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:12,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:12,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:12,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-28 13:32:12,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-28 13:32:12,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:12,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-28 13:32:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:12,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1841 [2020-10-28 13:32:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:12,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:12,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:12,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-28 13:32:12,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:12,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 13:32:12,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:12,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:12,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:12,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-28 13:32:12,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:12,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:12,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2072 [2020-10-28 13:32:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:12,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:12,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:12,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 13:32:12,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:12,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 13:32:12,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:12,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:32:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-28 13:32:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:32:12,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0