/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/Problem10_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 11:56:57,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 11:56:57,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 11:56:57,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 11:56:57,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 11:56:57,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 11:56:57,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 11:56:57,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 11:56:57,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 11:56:57,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 11:56:57,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 11:56:57,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 11:56:57,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 11:56:57,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 11:56:57,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 11:56:57,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 11:56:57,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 11:56:57,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 11:56:57,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 11:56:57,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 11:56:57,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 11:56:57,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 11:56:57,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 11:56:57,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 11:56:57,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 11:56:57,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 11:56:57,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 11:56:57,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 11:56:57,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 11:56:57,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 11:56:57,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 11:56:57,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 11:56:57,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 11:56:57,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 11:56:57,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 11:56:57,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 11:56:57,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 11:56:57,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 11:56:57,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 11:56:57,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 11:56:57,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 11:56:57,887 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 11:56:57,945 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 11:56:57,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 11:56:57,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 11:56:57,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 11:56:57,951 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 11:56:57,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 11:56:57,952 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 11:56:57,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 11:56:57,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 11:56:57,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 11:56:57,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 11:56:57,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 11:56:57,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 11:56:57,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 11:56:57,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 11:56:57,955 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 11:56:57,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 11:56:57,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 11:56:57,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 11:56:57,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 11:56:57,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 11:56:57,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 11:56:57,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 11:56:57,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 11:56:57,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 11:56:57,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 11:56:57,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 11:56:57,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 11:56:57,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 11:56:57,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 11:56:58,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 11:56:58,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 11:56:58,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 11:56:58,461 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 11:56:58,462 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 11:56:58,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label03.c [2020-10-28 11:56:58,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc0a2e5dd/066b3ad86d4440bc92608cc59f02bbd2/FLAGb0ca2c600 [2020-10-28 11:56:59,238 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 11:56:59,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label03.c [2020-10-28 11:56:59,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc0a2e5dd/066b3ad86d4440bc92608cc59f02bbd2/FLAGb0ca2c600 [2020-10-28 11:56:59,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc0a2e5dd/066b3ad86d4440bc92608cc59f02bbd2 [2020-10-28 11:56:59,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 11:56:59,492 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 11:56:59,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 11:56:59,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 11:56:59,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 11:56:59,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:56:59" (1/1) ... [2020-10-28 11:56:59,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d463e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:59, skipping insertion in model container [2020-10-28 11:56:59,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:56:59" (1/1) ... [2020-10-28 11:56:59,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 11:56:59,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 11:57:00,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:57:00,139 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 11:57:00,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:57:00,262 INFO L208 MainTranslator]: Completed translation [2020-10-28 11:57:00,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:00 WrapperNode [2020-10-28 11:57:00,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 11:57:00,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 11:57:00,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 11:57:00,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 11:57:00,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:00" (1/1) ... [2020-10-28 11:57:00,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:00" (1/1) ... [2020-10-28 11:57:00,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:00" (1/1) ... [2020-10-28 11:57:00,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:00" (1/1) ... [2020-10-28 11:57:00,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:00" (1/1) ... [2020-10-28 11:57:00,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:00" (1/1) ... [2020-10-28 11:57:00,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:00" (1/1) ... [2020-10-28 11:57:00,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 11:57:00,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 11:57:00,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 11:57:00,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 11:57:00,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 11:57:00,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 11:57:00,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 11:57:00,541 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 11:57:00,542 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 11:57:00,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 11:57:00,542 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 11:57:00,542 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 11:57:00,542 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 11:57:00,542 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 11:57:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 11:57:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 11:57:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 11:57:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 11:57:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 11:57:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 11:57:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 11:57:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 11:57:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 11:57:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 11:57:01,903 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 11:57:01,903 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 11:57:01,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:57:01 BoogieIcfgContainer [2020-10-28 11:57:01,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 11:57:01,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 11:57:01,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 11:57:01,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 11:57:01,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:56:59" (1/3) ... [2020-10-28 11:57:01,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e033008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:57:01, skipping insertion in model container [2020-10-28 11:57:01,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:00" (2/3) ... [2020-10-28 11:57:01,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e033008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:57:01, skipping insertion in model container [2020-10-28 11:57:01,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:57:01" (3/3) ... [2020-10-28 11:57:01,916 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label03.c [2020-10-28 11:57:01,929 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 11:57:01,935 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 11:57:01,950 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 11:57:01,980 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 11:57:01,980 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 11:57:01,980 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 11:57:01,981 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 11:57:01,981 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 11:57:01,981 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 11:57:01,981 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 11:57:01,981 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 11:57:02,005 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-28 11:57:02,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-28 11:57:02,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:02,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:02,014 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:02,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:02,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1031714486, now seen corresponding path program 1 times [2020-10-28 11:57:02,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:02,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451150754] [2020-10-28 11:57:02,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:02,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:02,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:02,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-28 11:57:02,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:02,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 524 [2020-10-28 11:57:02,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:02,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:02,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:02,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:57:02,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 11:57:02,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 11:57:02,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:02,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:02,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:02,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:02,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:02,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 11:57:02,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:02,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:57:02,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:02,968 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 11:57:02,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451150754] [2020-10-28 11:57:02,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:57:02,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 11:57:02,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625357485] [2020-10-28 11:57:02,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 11:57:02,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:02,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 11:57:02,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 11:57:02,995 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-28 11:57:04,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:04,827 INFO L93 Difference]: Finished difference Result 601 states and 1028 transitions. [2020-10-28 11:57:04,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:04,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-10-28 11:57:04,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:04,845 INFO L225 Difference]: With dead ends: 601 [2020-10-28 11:57:04,845 INFO L226 Difference]: Without dead ends: 303 [2020-10-28 11:57:04,853 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 11:57:04,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-28 11:57:04,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-28 11:57:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-28 11:57:04,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 449 transitions. [2020-10-28 11:57:04,935 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 449 transitions. Word has length 43 [2020-10-28 11:57:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:04,936 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 449 transitions. [2020-10-28 11:57:04,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 11:57:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 449 transitions. [2020-10-28 11:57:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-28 11:57:04,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:04,945 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:57:04,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 11:57:04,946 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:04,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:04,947 INFO L82 PathProgramCache]: Analyzing trace with hash -457003641, now seen corresponding path program 1 times [2020-10-28 11:57:04,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:04,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315397104] [2020-10-28 11:57:04,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:05,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:05,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:06,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:06,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-28 11:57:06,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:06,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-10-28 11:57:06,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:06,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:06,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:57:06,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 11:57:06,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:06,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:06,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:06,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:06,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:06,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:06,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 11:57:06,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:06,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:06,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:06,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:06,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:06,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:06,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 11:57:06,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:06,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 11:57:06,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:06,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:06,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:06,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:06,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 11:57:06,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:06,415 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 34 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:06,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315397104] [2020-10-28 11:57:06,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:06,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:57:06,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439221357] [2020-10-28 11:57:06,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:57:06,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:06,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:57:06,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:57:06,424 INFO L87 Difference]: Start difference. First operand 297 states and 449 transitions. Second operand 5 states. [2020-10-28 11:57:07,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:07,974 INFO L93 Difference]: Finished difference Result 884 states and 1364 transitions. [2020-10-28 11:57:07,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:07,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-10-28 11:57:07,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:07,982 INFO L225 Difference]: With dead ends: 884 [2020-10-28 11:57:07,982 INFO L226 Difference]: Without dead ends: 593 [2020-10-28 11:57:07,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:57:07,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2020-10-28 11:57:08,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 587. [2020-10-28 11:57:08,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-28 11:57:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 849 transitions. [2020-10-28 11:57:08,044 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 849 transitions. Word has length 113 [2020-10-28 11:57:08,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:08,045 INFO L481 AbstractCegarLoop]: Abstraction has 587 states and 849 transitions. [2020-10-28 11:57:08,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:57:08,045 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 849 transitions. [2020-10-28 11:57:08,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-28 11:57:08,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:08,056 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:57:08,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 11:57:08,056 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:08,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:08,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1158510569, now seen corresponding path program 1 times [2020-10-28 11:57:08,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:08,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910992935] [2020-10-28 11:57:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:08,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:08,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:09,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:09,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-28 11:57:09,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:09,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 997 [2020-10-28 11:57:09,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:09,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:09,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:09,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:57:09,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 11:57:09,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:09,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:09,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:09,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:09,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:09,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:09,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 11:57:09,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:09,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:57:09,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:09,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:09,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:09,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:09,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 11:57:09,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:09,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-28 11:57:09,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:09,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 11:57:09,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:09,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910992935] [2020-10-28 11:57:09,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:57:09,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 11:57:09,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334501037] [2020-10-28 11:57:09,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:09,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:09,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:09,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:09,563 INFO L87 Difference]: Start difference. First operand 587 states and 849 transitions. Second operand 7 states. [2020-10-28 11:57:11,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:11,698 INFO L93 Difference]: Finished difference Result 1794 states and 2697 transitions. [2020-10-28 11:57:11,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 11:57:11,699 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-10-28 11:57:11,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:11,716 INFO L225 Difference]: With dead ends: 1794 [2020-10-28 11:57:11,716 INFO L226 Difference]: Without dead ends: 1213 [2020-10-28 11:57:11,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:57:11,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-10-28 11:57:11,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 897. [2020-10-28 11:57:11,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-10-28 11:57:11,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1226 transitions. [2020-10-28 11:57:11,839 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1226 transitions. Word has length 124 [2020-10-28 11:57:11,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:11,839 INFO L481 AbstractCegarLoop]: Abstraction has 897 states and 1226 transitions. [2020-10-28 11:57:11,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:11,840 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1226 transitions. [2020-10-28 11:57:11,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-28 11:57:11,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:11,846 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:57:11,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 11:57:11,846 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:11,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:11,847 INFO L82 PathProgramCache]: Analyzing trace with hash -587020516, now seen corresponding path program 1 times [2020-10-28 11:57:11,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:11,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78186834] [2020-10-28 11:57:11,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:11,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:12,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:12,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:13,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:13,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-28 11:57:13,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:13,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1680 [2020-10-28 11:57:13,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:13,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:57:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 11:57:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:13,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:13,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:13,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:13,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:13,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:13,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 11:57:13,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:13,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:13,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:13,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:13,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:13,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:13,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 11:57:13,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:13,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-28 11:57:13,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:13,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 11:57:13,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:13,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 11:57:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:13,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:14,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:14,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:57:14,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:14,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-28 11:57:14,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:14,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 11:57:14,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:14,303 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:57:14,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78186834] [2020-10-28 11:57:14,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:14,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 11:57:14,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409833667] [2020-10-28 11:57:14,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 11:57:14,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:14,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 11:57:14,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 11:57:14,307 INFO L87 Difference]: Start difference. First operand 897 states and 1226 transitions. Second operand 8 states. [2020-10-28 11:57:16,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:16,969 INFO L93 Difference]: Finished difference Result 2827 states and 4146 transitions. [2020-10-28 11:57:16,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:57:16,970 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 195 [2020-10-28 11:57:16,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:16,992 INFO L225 Difference]: With dead ends: 2827 [2020-10-28 11:57:16,993 INFO L226 Difference]: Without dead ends: 1936 [2020-10-28 11:57:16,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-28 11:57:16,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2020-10-28 11:57:17,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1928. [2020-10-28 11:57:17,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1928 states. [2020-10-28 11:57:17,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 2758 transitions. [2020-10-28 11:57:17,117 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 2758 transitions. Word has length 195 [2020-10-28 11:57:17,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:17,119 INFO L481 AbstractCegarLoop]: Abstraction has 1928 states and 2758 transitions. [2020-10-28 11:57:17,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 11:57:17,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 2758 transitions. [2020-10-28 11:57:17,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-28 11:57:17,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:17,128 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:57:17,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 11:57:17,129 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:17,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:17,129 INFO L82 PathProgramCache]: Analyzing trace with hash -583266466, now seen corresponding path program 1 times [2020-10-28 11:57:17,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:17,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696968365] [2020-10-28 11:57:17,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:17,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:17,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:17,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:18,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:18,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:18,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-28 11:57:18,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:57:18,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1759 [2020-10-28 11:57:18,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:18,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:18,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 11:57:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 11:57:18,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:19,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:19,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:19,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:19,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:19,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:19,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:57:19,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:19,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:19,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:19,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:19,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:19,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:19,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:19,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:19,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:19,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 11:57:19,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:19,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 11:57:19,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:19,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:57:19,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:19,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 11:57:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:19,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:19,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:19,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 11:57:19,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:19,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 11:57:19,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:19,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:57:19,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:19,433 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:57:19,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696968365] [2020-10-28 11:57:19,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:19,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 11:57:19,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266228409] [2020-10-28 11:57:19,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 11:57:19,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:19,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 11:57:19,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 11:57:19,436 INFO L87 Difference]: Start difference. First operand 1928 states and 2758 transitions. Second operand 8 states. [2020-10-28 11:57:22,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:22,378 INFO L93 Difference]: Finished difference Result 4345 states and 6391 transitions. [2020-10-28 11:57:22,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 11:57:22,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 195 [2020-10-28 11:57:22,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:22,399 INFO L225 Difference]: With dead ends: 4345 [2020-10-28 11:57:22,400 INFO L226 Difference]: Without dead ends: 1976 [2020-10-28 11:57:22,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-28 11:57:22,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2020-10-28 11:57:22,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1646. [2020-10-28 11:57:22,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2020-10-28 11:57:22,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2118 transitions. [2020-10-28 11:57:22,484 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2118 transitions. Word has length 195 [2020-10-28 11:57:22,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:22,484 INFO L481 AbstractCegarLoop]: Abstraction has 1646 states and 2118 transitions. [2020-10-28 11:57:22,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 11:57:22,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2118 transitions. [2020-10-28 11:57:22,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-28 11:57:22,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:22,489 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:57:22,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 11:57:22,490 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:22,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1590146486, now seen corresponding path program 1 times [2020-10-28 11:57:22,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:22,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821051] [2020-10-28 11:57:22,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:22,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:22,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:23,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:25,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:27,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:27,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-28 11:57:27,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:57:27,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4687 [2020-10-28 11:57:27,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:27,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:27,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:27,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:57:27,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 11:57:27,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:27,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:27,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:27,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:27,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:27,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 11:57:27,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:27,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:57:27,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:27,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:27,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:27,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:27,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:57:27,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:27,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-28 11:57:27,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:27,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:27,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:27,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 11:57:27,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:27,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 11:57:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:27,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:27,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:27,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:57:27,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:27,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 11:57:27,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:27,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:57:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:27,814 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 70 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 11:57:27,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821051] [2020-10-28 11:57:27,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:27,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:27,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27488516] [2020-10-28 11:57:27,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:27,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:27,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:27,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:27,818 INFO L87 Difference]: Start difference. First operand 1646 states and 2118 transitions. Second operand 7 states. [2020-10-28 11:57:29,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:29,482 INFO L93 Difference]: Finished difference Result 3447 states and 4435 transitions. [2020-10-28 11:57:29,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 11:57:29,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-10-28 11:57:29,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:29,497 INFO L225 Difference]: With dead ends: 3447 [2020-10-28 11:57:29,497 INFO L226 Difference]: Without dead ends: 1807 [2020-10-28 11:57:29,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 11:57:29,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-10-28 11:57:29,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1793. [2020-10-28 11:57:29,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1793 states. [2020-10-28 11:57:29,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2278 transitions. [2020-10-28 11:57:29,563 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2278 transitions. Word has length 212 [2020-10-28 11:57:29,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:29,564 INFO L481 AbstractCegarLoop]: Abstraction has 1793 states and 2278 transitions. [2020-10-28 11:57:29,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:29,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2278 transitions. [2020-10-28 11:57:29,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-28 11:57:29,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:29,568 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:57:29,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 11:57:29,569 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:29,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:29,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1279291460, now seen corresponding path program 1 times [2020-10-28 11:57:29,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:29,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863477539] [2020-10-28 11:57:29,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:29,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:29,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:30,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:30,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:30,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-28 11:57:30,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1128 [2020-10-28 11:57:30,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:30,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:57:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-28 11:57:30,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:30,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:30,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:30,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:30,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:30,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:30,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:57:30,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:30,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:30,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:30,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:30,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:30,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:30,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:30,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:30,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 11:57:30,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:30,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 11:57:30,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:30,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 11:57:30,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:30,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 11:57:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:31,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:31,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:31,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:31,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 11:57:31,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:31,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 11:57:31,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:31,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:31,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:31,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:31,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 11:57:31,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 100 proven. 35 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 11:57:31,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863477539] [2020-10-28 11:57:31,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:31,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 11:57:31,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597985291] [2020-10-28 11:57:31,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 11:57:31,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:31,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 11:57:31,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:57:31,319 INFO L87 Difference]: Start difference. First operand 1793 states and 2278 transitions. Second operand 6 states. [2020-10-28 11:57:32,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:32,902 INFO L93 Difference]: Finished difference Result 3882 states and 4953 transitions. [2020-10-28 11:57:32,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 11:57:32,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 215 [2020-10-28 11:57:32,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:32,917 INFO L225 Difference]: With dead ends: 3882 [2020-10-28 11:57:32,917 INFO L226 Difference]: Without dead ends: 2089 [2020-10-28 11:57:32,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 11:57:32,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-10-28 11:57:32,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2081. [2020-10-28 11:57:32,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2081 states. [2020-10-28 11:57:33,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2582 transitions. [2020-10-28 11:57:33,004 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2582 transitions. Word has length 215 [2020-10-28 11:57:33,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:33,005 INFO L481 AbstractCegarLoop]: Abstraction has 2081 states and 2582 transitions. [2020-10-28 11:57:33,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 11:57:33,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2582 transitions. [2020-10-28 11:57:33,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-28 11:57:33,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:33,011 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:57:33,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 11:57:33,011 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:33,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:33,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1956336342, now seen corresponding path program 1 times [2020-10-28 11:57:33,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:33,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121197779] [2020-10-28 11:57:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:33,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:33,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:34,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:34,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-28 11:57:34,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:34,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1604 [2020-10-28 11:57:34,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:34,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:34,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:34,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:57:34,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 11:57:34,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:34,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:34,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:34,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:34,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:34,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:34,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 11:57:34,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:34,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:34,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:34,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:35,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:35,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:57:35,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:35,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-28 11:57:35,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:35,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:35,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:35,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:35,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:57:35,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:35,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:57:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:35,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:35,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:35,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 11:57:35,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:35,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-28 11:57:35,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:35,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 11:57:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 169 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:57:35,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121197779] [2020-10-28 11:57:35,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:35,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:35,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807260802] [2020-10-28 11:57:35,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:35,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:35,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:35,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:35,458 INFO L87 Difference]: Start difference. First operand 2081 states and 2582 transitions. Second operand 7 states. [2020-10-28 11:57:37,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:37,514 INFO L93 Difference]: Finished difference Result 4613 states and 5816 transitions. [2020-10-28 11:57:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 11:57:37,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 260 [2020-10-28 11:57:37,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:37,534 INFO L225 Difference]: With dead ends: 4613 [2020-10-28 11:57:37,534 INFO L226 Difference]: Without dead ends: 2681 [2020-10-28 11:57:37,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:57:37,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2020-10-28 11:57:37,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2673. [2020-10-28 11:57:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2673 states. [2020-10-28 11:57:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 3290 transitions. [2020-10-28 11:57:37,624 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 3290 transitions. Word has length 260 [2020-10-28 11:57:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:37,625 INFO L481 AbstractCegarLoop]: Abstraction has 2673 states and 3290 transitions. [2020-10-28 11:57:37,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:37,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 3290 transitions. [2020-10-28 11:57:37,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-10-28 11:57:37,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:37,633 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:37,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 11:57:37,634 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:37,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:37,634 INFO L82 PathProgramCache]: Analyzing trace with hash 2130217622, now seen corresponding path program 1 times [2020-10-28 11:57:37,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:37,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794073402] [2020-10-28 11:57:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:37,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:38,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:38,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-10-28 11:57:38,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:38,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-10-28 11:57:38,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:38,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:38,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-10-28 11:57:38,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 11:57:38,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:38,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:38,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:38,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:38,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:38,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:38,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 11:57:38,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:38,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:38,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 11:57:38,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:38,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:38,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:38,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 11:57:38,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 11:57:38,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:38,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:38,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:38,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-28 11:57:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:38,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:38,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:38,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 11:57:38,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:38,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 11:57:38,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:38,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:38,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:38,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:38,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-28 11:57:38,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 71 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-28 11:57:38,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794073402] [2020-10-28 11:57:38,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:38,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:57:38,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102414942] [2020-10-28 11:57:38,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:57:38,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:38,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:57:38,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:57:38,727 INFO L87 Difference]: Start difference. First operand 2673 states and 3290 transitions. Second operand 5 states. [2020-10-28 11:57:40,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:40,163 INFO L93 Difference]: Finished difference Result 5199 states and 6426 transitions. [2020-10-28 11:57:40,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:40,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 282 [2020-10-28 11:57:40,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:40,179 INFO L225 Difference]: With dead ends: 5199 [2020-10-28 11:57:40,179 INFO L226 Difference]: Without dead ends: 2675 [2020-10-28 11:57:40,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 11:57:40,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2675 states. [2020-10-28 11:57:40,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2675 to 2528. [2020-10-28 11:57:40,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2528 states. [2020-10-28 11:57:40,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 2986 transitions. [2020-10-28 11:57:40,266 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 2986 transitions. Word has length 282 [2020-10-28 11:57:40,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:40,267 INFO L481 AbstractCegarLoop]: Abstraction has 2528 states and 2986 transitions. [2020-10-28 11:57:40,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:57:40,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 2986 transitions. [2020-10-28 11:57:40,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-28 11:57:40,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:40,276 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:57:40,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 11:57:40,276 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:40,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:40,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1865297438, now seen corresponding path program 1 times [2020-10-28 11:57:40,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:40,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596059043] [2020-10-28 11:57:40,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:40,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:40,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:40,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:43,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:43,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-10-28 11:57:43,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:43,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2975 [2020-10-28 11:57:43,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:43,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:43,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:43,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 268 [2020-10-28 11:57:43,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 11:57:43,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:43,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:43,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:43,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:43,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:43,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:43,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:57:43,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:43,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:43,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:43,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:43,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:43,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:43,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:57:43,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:43,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 11:57:43,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:43,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:43,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:43,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:43,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:57:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:43,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:43,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:43,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 11:57:43,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:43,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-28 11:57:43,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:43,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-28 11:57:43,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:43,983 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 71 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-28 11:57:43,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596059043] [2020-10-28 11:57:43,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:43,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:57:43,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883277358] [2020-10-28 11:57:43,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:57:43,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:43,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:57:43,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:57:43,988 INFO L87 Difference]: Start difference. First operand 2528 states and 2986 transitions. Second operand 5 states. [2020-10-28 11:57:45,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:45,585 INFO L93 Difference]: Finished difference Result 5052 states and 5964 transitions. [2020-10-28 11:57:45,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:45,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 299 [2020-10-28 11:57:45,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:45,607 INFO L225 Difference]: With dead ends: 5052 [2020-10-28 11:57:45,607 INFO L226 Difference]: Without dead ends: 2526 [2020-10-28 11:57:45,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 11:57:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2020-10-28 11:57:45,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2379. [2020-10-28 11:57:45,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2379 states. [2020-10-28 11:57:45,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 2707 transitions. [2020-10-28 11:57:45,686 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 2707 transitions. Word has length 299 [2020-10-28 11:57:45,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:45,687 INFO L481 AbstractCegarLoop]: Abstraction has 2379 states and 2707 transitions. [2020-10-28 11:57:45,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:57:45,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 2707 transitions. [2020-10-28 11:57:45,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-28 11:57:45,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:45,696 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:45,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 11:57:45,697 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:45,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:45,697 INFO L82 PathProgramCache]: Analyzing trace with hash 987684871, now seen corresponding path program 1 times [2020-10-28 11:57:45,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:45,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880232655] [2020-10-28 11:57:45,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:45,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:45,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:46,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:49,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:50,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:50,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-28 11:57:50,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:57:50,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-28 11:57:50,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:50,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:57:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 11:57:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:50,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:50,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:51,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:51,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:51,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:51,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 11:57:51,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:51,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:51,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:51,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:51,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:51,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:51,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:51,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:51,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:51,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:57:51,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:51,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 11:57:51,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:51,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:57:51,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:51,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:57:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:51,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:51,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:51,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:57:51,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:51,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-28 11:57:51,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:51,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:51,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:51,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:51,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 11:57:51,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:51,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-28 11:57:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:51,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:51,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:51,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:57:51,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:51,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 11:57:51,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:51,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:51,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:51,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:57:51,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:51,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:51,678 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 193 proven. 81 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-28 11:57:51,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880232655] [2020-10-28 11:57:51,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:51,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:51,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019734072] [2020-10-28 11:57:51,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:51,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:51,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:51,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:51,683 INFO L87 Difference]: Start difference. First operand 2379 states and 2707 transitions. Second operand 7 states. [2020-10-28 11:57:53,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:53,838 INFO L93 Difference]: Finished difference Result 4917 states and 5617 transitions. [2020-10-28 11:57:53,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:57:53,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 327 [2020-10-28 11:57:53,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:53,851 INFO L225 Difference]: With dead ends: 4917 [2020-10-28 11:57:53,851 INFO L226 Difference]: Without dead ends: 2687 [2020-10-28 11:57:53,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-28 11:57:53,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2020-10-28 11:57:53,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2669. [2020-10-28 11:57:53,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2020-10-28 11:57:53,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3009 transitions. [2020-10-28 11:57:53,927 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3009 transitions. Word has length 327 [2020-10-28 11:57:53,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:53,928 INFO L481 AbstractCegarLoop]: Abstraction has 2669 states and 3009 transitions. [2020-10-28 11:57:53,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:53,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3009 transitions. [2020-10-28 11:57:53,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-10-28 11:57:53,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:53,938 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:53,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 11:57:53,938 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:53,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:53,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1109374509, now seen corresponding path program 1 times [2020-10-28 11:57:53,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:53,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004963444] [2020-10-28 11:57:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:54,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:54,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:54,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:56,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:56,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-28 11:57:56,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:56,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2011 [2020-10-28 11:57:56,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:56,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-28 11:57:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 11:57:56,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:56,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:56,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:56,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:56,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:56,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:56,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:57:56,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:56,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:56,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:56,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:56,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:56,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:56,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:56,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:56,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:56,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 11:57:56,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:56,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 11:57:56,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:56,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:56,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:56,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 11:57:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:56,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:56,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:56,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:57:56,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:56,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 11:57:56,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:56,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:56,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:56,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:56,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 11:57:56,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:56,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-28 11:57:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:56,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:56,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:56,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:57:56,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:56,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 11:57:56,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:56,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:56,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:56,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:56,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 11:57:56,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-28 11:57:56,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004963444] [2020-10-28 11:57:56,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:56,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:56,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155524092] [2020-10-28 11:57:56,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:56,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:56,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:56,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:56,549 INFO L87 Difference]: Start difference. First operand 2669 states and 3009 transitions. Second operand 7 states. [2020-10-28 11:57:58,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:58,812 INFO L93 Difference]: Finished difference Result 6073 states and 6944 transitions. [2020-10-28 11:57:58,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 11:57:58,817 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 346 [2020-10-28 11:57:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:58,833 INFO L225 Difference]: With dead ends: 6073 [2020-10-28 11:57:58,833 INFO L226 Difference]: Without dead ends: 3553 [2020-10-28 11:57:58,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 11:57:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3553 states. [2020-10-28 11:57:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3553 to 3253. [2020-10-28 11:57:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3253 states. [2020-10-28 11:57:58,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 3671 transitions. [2020-10-28 11:57:58,944 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 3671 transitions. Word has length 346 [2020-10-28 11:57:58,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:58,945 INFO L481 AbstractCegarLoop]: Abstraction has 3253 states and 3671 transitions. [2020-10-28 11:57:58,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 3671 transitions. [2020-10-28 11:57:58,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-10-28 11:57:58,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:58,958 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:58,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 11:57:58,958 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:58,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:58,959 INFO L82 PathProgramCache]: Analyzing trace with hash 774895757, now seen corresponding path program 1 times [2020-10-28 11:57:58,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:58,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313690701] [2020-10-28 11:57:58,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:59,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:59,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:59,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:00,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:00,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 371 [2020-10-28 11:58:00,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:58:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1463 [2020-10-28 11:58:00,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:00,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-28 11:58:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 11:58:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:00,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:00,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:00,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:00,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:00,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:00,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 11:58:00,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:00,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:00,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:00,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:00,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:00,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:00,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 11:58:00,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:00,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 11:58:00,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:00,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:00,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:00,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:00,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:00,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:00,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 11:58:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:00,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:00,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:00,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 11:58:00,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:00,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 11:58:00,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:00,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:00,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:00,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 11:58:00,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:00,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-28 11:58:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:00,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:00,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:00,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:58:00,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:00,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 11:58:00,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:00,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:00,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:00,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:00,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 11:58:00,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:01,048 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-28 11:58:01,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313690701] [2020-10-28 11:58:01,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:01,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:58:01,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294786244] [2020-10-28 11:58:01,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:58:01,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:01,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:58:01,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:58:01,050 INFO L87 Difference]: Start difference. First operand 3253 states and 3671 transitions. Second operand 7 states. [2020-10-28 11:58:03,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:03,013 INFO L93 Difference]: Finished difference Result 6804 states and 7710 transitions. [2020-10-28 11:58:03,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 11:58:03,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 355 [2020-10-28 11:58:03,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:03,048 INFO L225 Difference]: With dead ends: 6804 [2020-10-28 11:58:03,049 INFO L226 Difference]: Without dead ends: 3700 [2020-10-28 11:58:03,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:58:03,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3700 states. [2020-10-28 11:58:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3700 to 3547. [2020-10-28 11:58:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3547 states. [2020-10-28 11:58:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 3989 transitions. [2020-10-28 11:58:03,163 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 3989 transitions. Word has length 355 [2020-10-28 11:58:03,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:03,164 INFO L481 AbstractCegarLoop]: Abstraction has 3547 states and 3989 transitions. [2020-10-28 11:58:03,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:58:03,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 3989 transitions. [2020-10-28 11:58:03,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-10-28 11:58:03,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:03,173 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 11:58:03,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 11:58:03,173 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:03,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:03,174 INFO L82 PathProgramCache]: Analyzing trace with hash -696403013, now seen corresponding path program 1 times [2020-10-28 11:58:03,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:03,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471637508] [2020-10-28 11:58:03,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:03,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:03,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:04,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:05,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:05,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 389 [2020-10-28 11:58:05,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:58:05,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2144 [2020-10-28 11:58:05,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:05,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-28 11:58:05,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 11:58:05,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:05,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:05,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:05,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:05,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:05,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:05,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 11:58:05,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:05,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:05,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:05,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:05,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:05,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:05,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:05,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:05,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:05,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 11:58:05,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:05,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 11:58:05,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:05,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:05,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:05,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 11:58:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:05,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:05,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:05,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 11:58:05,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:05,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 11:58:05,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:05,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 11:58:05,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:05,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-28 11:58:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:05,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:05,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:05,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:58:05,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:05,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-28 11:58:05,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:05,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 11:58:05,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:06,008 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-28 11:58:06,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471637508] [2020-10-28 11:58:06,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:06,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:58:06,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953048386] [2020-10-28 11:58:06,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:58:06,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:06,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:58:06,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:58:06,010 INFO L87 Difference]: Start difference. First operand 3547 states and 3989 transitions. Second operand 7 states. [2020-10-28 11:58:08,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:08,119 INFO L93 Difference]: Finished difference Result 6951 states and 7830 transitions. [2020-10-28 11:58:08,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 11:58:08,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 373 [2020-10-28 11:58:08,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:08,131 INFO L225 Difference]: With dead ends: 6951 [2020-10-28 11:58:08,132 INFO L226 Difference]: Without dead ends: 3553 [2020-10-28 11:58:08,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:58:08,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3553 states. [2020-10-28 11:58:08,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3553 to 3545. [2020-10-28 11:58:08,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3545 states. [2020-10-28 11:58:08,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 3930 transitions. [2020-10-28 11:58:08,219 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 3930 transitions. Word has length 373 [2020-10-28 11:58:08,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:08,220 INFO L481 AbstractCegarLoop]: Abstraction has 3545 states and 3930 transitions. [2020-10-28 11:58:08,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:58:08,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 3930 transitions. [2020-10-28 11:58:08,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-10-28 11:58:08,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:08,229 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:58:08,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 11:58:08,230 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:08,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:08,230 INFO L82 PathProgramCache]: Analyzing trace with hash -126421209, now seen corresponding path program 1 times [2020-10-28 11:58:08,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:08,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164698676] [2020-10-28 11:58:08,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:08,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:08,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:09,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:09,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 399 [2020-10-28 11:58:09,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:58:09,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1556 [2020-10-28 11:58:09,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:09,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-28 11:58:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 11:58:09,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:09,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:10,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:10,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:10,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:10,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:10,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 11:58:10,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:10,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:10,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:10,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:10,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:10,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:10,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 11:58:10,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:10,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 11:58:10,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:10,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:10,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:10,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 11:58:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:10,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:10,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:10,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:58:10,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:10,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 11:58:10,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:10,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:10,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:10,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:10,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:10,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:10,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-28 11:58:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:10,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:10,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:10,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:58:10,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:10,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 11:58:10,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:10,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:10,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:10,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 11:58:10,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:10,398 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 108 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-28 11:58:10,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164698676] [2020-10-28 11:58:10,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:10,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:58:10,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705062424] [2020-10-28 11:58:10,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:58:10,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:10,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:58:10,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:58:10,401 INFO L87 Difference]: Start difference. First operand 3545 states and 3930 transitions. Second operand 5 states. [2020-10-28 11:58:11,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:11,912 INFO L93 Difference]: Finished difference Result 6796 states and 7527 transitions. [2020-10-28 11:58:11,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:58:11,919 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 383 [2020-10-28 11:58:11,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:11,928 INFO L225 Difference]: With dead ends: 6796 [2020-10-28 11:58:11,928 INFO L226 Difference]: Without dead ends: 3255 [2020-10-28 11:58:11,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 11:58:11,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2020-10-28 11:58:12,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3249. [2020-10-28 11:58:12,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3249 states. [2020-10-28 11:58:12,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 3545 transitions. [2020-10-28 11:58:12,009 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 3545 transitions. Word has length 383 [2020-10-28 11:58:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:12,010 INFO L481 AbstractCegarLoop]: Abstraction has 3249 states and 3545 transitions. [2020-10-28 11:58:12,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:58:12,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 3545 transitions. [2020-10-28 11:58:12,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-10-28 11:58:12,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:12,019 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 11:58:12,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 11:58:12,020 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:12,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:12,020 INFO L82 PathProgramCache]: Analyzing trace with hash 358911199, now seen corresponding path program 1 times [2020-10-28 11:58:12,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:12,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542397669] [2020-10-28 11:58:12,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:12,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:12,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:13,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:13,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 399 [2020-10-28 11:58:13,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:58:13,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1138 [2020-10-28 11:58:13,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:13,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:13,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:13,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-28 11:58:13,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 11:58:13,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:13,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:13,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:13,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:13,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:13,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:13,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:58:13,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:13,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:13,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:13,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:13,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:13,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:13,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:13,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:13,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:13,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 11:58:13,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:13,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 11:58:13,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:13,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:13,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:13,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:13,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:13,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:13,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-28 11:58:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:13,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:13,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:13,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 11:58:13,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:13,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 11:58:13,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:13,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:13,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:13,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:13,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:13,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:13,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-28 11:58:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:13,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:13,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:13,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:58:13,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:13,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 11:58:13,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:13,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:13,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 11:58:13,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:13,871 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 108 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-28 11:58:13,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542397669] [2020-10-28 11:58:13,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:13,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:58:13,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283083197] [2020-10-28 11:58:13,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:58:13,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:13,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:58:13,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:58:13,876 INFO L87 Difference]: Start difference. First operand 3249 states and 3545 transitions. Second operand 5 states. [2020-10-28 11:58:15,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:15,195 INFO L93 Difference]: Finished difference Result 3253 states and 3549 transitions. [2020-10-28 11:58:15,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:58:15,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 383 [2020-10-28 11:58:15,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:15,200 INFO L225 Difference]: With dead ends: 3253 [2020-10-28 11:58:15,200 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 11:58:15,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 11:58:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 11:58:15,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 11:58:15,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 11:58:15,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 11:58:15,211 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 383 [2020-10-28 11:58:15,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:15,211 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 11:58:15,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:58:15,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 11:58:15,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 11:58:15,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 11:58:15,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 11:58:15,625 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 144 [2020-10-28 11:58:16,578 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 144 [2020-10-28 11:58:17,107 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 43 [2020-10-28 11:58:17,437 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 45 [2020-10-28 11:58:18,749 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 190 DAG size of output: 55 [2020-10-28 11:58:19,218 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 43 [2020-10-28 11:58:19,222 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 11:58:19,222 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 11:58:19,222 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 11:58:19,223 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 11:58:19,223 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 11:58:19,223 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-28 11:58:19,223 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 11:58:19,223 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-28 11:58:19,223 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-28 11:58:19,223 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-28 11:58:19,224 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 11:58:19,224 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 11:58:19,224 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 11:58:19,224 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 11:58:19,224 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 11:58:19,224 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 11:58:19,224 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-28 11:58:19,224 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-28 11:58:19,224 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-28 11:58:19,224 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-28 11:58:19,225 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,225 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,225 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,225 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,225 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,225 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,225 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-28 11:58:19,225 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-28 11:58:19,225 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 11:58:19,225 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 11:58:19,225 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 11:58:19,226 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 11:58:19,226 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 11:58:19,226 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 11:58:19,226 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-28 11:58:19,226 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-28 11:58:19,226 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-28 11:58:19,226 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,226 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,226 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,226 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,227 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,227 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-28 11:58:19,227 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-28 11:58:19,227 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-28 11:58:19,227 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-28 11:58:19,227 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 11:58:19,227 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 11:58:19,227 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 11:58:19,227 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 11:58:19,227 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 11:58:19,228 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-28 11:58:19,228 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-28 11:58:19,228 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-28 11:58:19,228 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-28 11:58:19,228 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-28 11:58:19,228 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,228 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,228 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,228 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,228 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,229 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-28 11:58:19,229 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 11:58:19,229 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 11:58:19,229 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 11:58:19,229 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 11:58:19,229 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 11:58:19,229 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-28 11:58:19,229 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-28 11:58:19,229 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-28 11:58:19,229 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-28 11:58:19,229 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,230 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,230 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,230 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,230 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,230 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-28 11:58:19,230 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-28 11:58:19,230 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-28 11:58:19,230 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 11:58:19,230 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 11:58:19,231 INFO L270 CegarLoopResult]: At program point L114(line 114) the Hoare annotation is: (let ((.cse0 (not (<= 4 |old(~a10~0)|))) (.cse2 (not (<= |old(~a10~0)| 2))) (.cse3 (not (<= |old(~a19~0)| 8))) (.cse4 (not (<= 23 |old(~a1~0)|))) (.cse1 (not (= 9 |old(~a19~0)|)))) (and (or .cse0 .cse1) (or .cse2 (not (= 10 |old(~a19~0)|))) (or .cse3 .cse0) (or .cse4 .cse3) (or .cse3 (not (= 2 |old(~a10~0)|))) (or .cse3 (not (= 0 |old(~a10~0)|))) (or .cse1 (not (<= |old(~a1~0)| 4))) (not (= 7 |old(~a19~0)|)) (or .cse1 .cse2) (or (not (= 3 |old(~a10~0)|)) .cse3) (or .cse4 .cse1))) [2020-10-28 11:58:19,231 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 11:58:19,231 INFO L274 CegarLoopResult]: For program point L114-1(line 114) no Hoare annotation was computed. [2020-10-28 11:58:19,231 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 11:58:19,231 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-28 11:58:19,231 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-28 11:58:19,231 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-28 11:58:19,231 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-28 11:58:19,231 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,232 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,233 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-28 11:58:19,233 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-28 11:58:19,233 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-28 11:58:19,233 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-28 11:58:19,233 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,233 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,233 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,233 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,233 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,233 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-28 11:58:19,234 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-28 11:58:19,234 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-28 11:58:19,234 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-28 11:58:19,234 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 11:58:19,234 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 11:58:19,234 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 11:58:19,234 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 11:58:19,234 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 11:58:19,234 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-28 11:58:19,234 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-28 11:58:19,234 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-28 11:58:19,235 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,236 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,237 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,237 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,237 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-28 11:58:19,237 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse3 (not (<= 4 |old(~a10~0)|))) (.cse0 (not (= 9 |old(~a19~0)|))) (.cse4 (not (<= 23 |old(~a1~0)|))) (.cse2 (not (<= |old(~a19~0)| 8))) (.cse1 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse5 (not (<= |old(~a10~0)| 2)))) (and (or .cse0 .cse1 (not (<= |old(~a1~0)| 4))) (or (not (= 3 |old(~a10~0)|)) .cse2 .cse1) (or .cse2 .cse3 .cse1) (or .cse4 .cse0 .cse1) (or .cse1 (not (= 7 |old(~a19~0)|))) (or .cse2 .cse1 (not (= 0 |old(~a10~0)|))) (or .cse0 .cse1 .cse5) (or .cse3 .cse1 .cse0) (or .cse2 .cse1 (not (= 2 |old(~a10~0)|))) (or .cse4 .cse2 .cse1) (or .cse1 .cse5 (not (= 10 |old(~a19~0)|))))) [2020-10-28 11:58:19,237 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-28 11:58:19,237 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-28 11:58:19,237 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 11:58:19,237 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,238 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-28 11:58:19,239 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-28 11:58:19,240 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,241 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,242 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,242 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:19,242 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 11:58:19,242 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-28 11:58:19,242 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 11:58:19,242 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 11:58:19,242 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-28 11:58:19,242 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-28 11:58:19,242 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse3 (<= 23 ~a1~0)) (.cse1 (= ~a19~0 9)) (.cse0 (<= ~a10~0 2)) (.cse2 (<= 4 ~a10~0)) (.cse4 (<= ~a19~0 8))) (or (= 7 ~a19~0) (and .cse0 .cse1) (not (= 0 |old(~a10~0)|)) (and .cse2 .cse1) (and .cse3 .cse1) (and (= ~a10~0 2) .cse4) (and (= ~a10~0 3) .cse4) (not (= 23 |old(~a1~0)|)) (and (= ~a10~0 0) .cse4) (and .cse3 .cse4) (not (= 9 |old(~a19~0)|)) (and .cse1 (<= ~a1~0 4)) (and .cse0 (= ~a19~0 10)) (and .cse2 .cse4))) [2020-10-28 11:58:19,243 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-28 11:58:19,243 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-28 11:58:19,243 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse3 (<= 23 ~a1~0)) (.cse1 (= ~a19~0 9)) (.cse0 (<= ~a10~0 2)) (.cse2 (<= 4 ~a10~0)) (.cse4 (<= ~a19~0 8))) (or (= 7 ~a19~0) (and .cse0 .cse1) (not (= 0 |old(~a10~0)|)) (and .cse2 .cse1) (and .cse3 .cse1) (and (= ~a10~0 2) .cse4) (and (= ~a10~0 3) .cse4) (not (= 23 |old(~a1~0)|)) (and (= ~a10~0 0) .cse4) (and .cse3 .cse4) (not (= 9 |old(~a19~0)|)) (and .cse1 (<= ~a1~0 4)) (and .cse0 (= ~a19~0 10)) (and .cse2 .cse4))) [2020-10-28 11:58:19,243 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-28 11:58:19,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:58:19 BoogieIcfgContainer [2020-10-28 11:58:19,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 11:58:19,268 INFO L168 Benchmark]: Toolchain (without parser) took 79784.20 ms. Allocated memory was 161.5 MB in the beginning and 966.8 MB in the end (delta: 805.3 MB). Free memory was 134.0 MB in the beginning and 554.4 MB in the end (delta: -420.4 MB). Peak memory consumption was 576.9 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:19,268 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 161.5 MB. Free memory is still 136.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 11:58:19,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.88 ms. Allocated memory is still 161.5 MB. Free memory was 133.2 MB in the beginning and 106.4 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:19,270 INFO L168 Benchmark]: Boogie Preprocessor took 178.00 ms. Allocated memory is still 161.5 MB. Free memory was 106.4 MB in the beginning and 137.6 MB in the end (delta: -31.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:19,270 INFO L168 Benchmark]: RCFGBuilder took 1461.52 ms. Allocated memory was 161.5 MB in the beginning and 198.2 MB in the end (delta: 36.7 MB). Free memory was 137.6 MB in the beginning and 159.8 MB in the end (delta: -22.2 MB). Peak memory consumption was 92.1 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:19,271 INFO L168 Benchmark]: TraceAbstraction took 77357.95 ms. Allocated memory was 198.2 MB in the beginning and 966.8 MB in the end (delta: 768.6 MB). Free memory was 159.2 MB in the beginning and 554.4 MB in the end (delta: -395.2 MB). Peak memory consumption was 564.3 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:19,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 161.5 MB. Free memory is still 136.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 768.88 ms. Allocated memory is still 161.5 MB. Free memory was 133.2 MB in the beginning and 106.4 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 178.00 ms. Allocated memory is still 161.5 MB. Free memory was 106.4 MB in the beginning and 137.6 MB in the end (delta: -31.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1461.52 ms. Allocated memory was 161.5 MB in the beginning and 198.2 MB in the end (delta: 36.7 MB). Free memory was 137.6 MB in the beginning and 159.8 MB in the end (delta: -22.2 MB). Peak memory consumption was 92.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 77357.95 ms. Allocated memory was 198.2 MB in the beginning and 966.8 MB in the end (delta: 768.6 MB). Free memory was 159.2 MB in the beginning and 554.4 MB in the end (delta: -395.2 MB). Peak memory consumption was 564.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((((((((((7 == a19 || (a10 <= 2 && a19 == 9)) || !(0 == \old(a10))) || (4 <= a10 && a19 == 9)) || (23 <= a1 && a19 == 9)) || (a10 == 2 && a19 <= 8)) || (a10 == 3 && a19 <= 8)) || !(23 == \old(a1))) || (a10 == 0 && a19 <= 8)) || (23 <= a1 && a19 <= 8)) || !(9 == \old(a19))) || (a19 == 9 && a1 <= 4)) || (a10 <= 2 && a19 == 10)) || (4 <= a10 && a19 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 73.2s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 31.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 434 SDtfs, 6477 SDslu, 511 SDs, 0 SdLazy, 13660 SolverSat, 1655 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3547occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 1475 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 464 PreInvPairs, 520 NumberOfFragments, 569 HoareAnnotationTreeSize, 464 FomulaSimplifications, 74095 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6983 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 37.9s InterpolantComputationTime, 4105 NumberOfCodeBlocks, 4105 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 4089 ConstructedInterpolants, 0 QuantifiedInterpolants, 2595525 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 3201/3417 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...