/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=SHALLOWEST --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/Problem01_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:35:23,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:35:23,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:35:23,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:35:23,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:35:23,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:35:23,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:35:23,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:35:23,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:35:23,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:35:23,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:35:23,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:35:23,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:35:23,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:35:23,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:35:23,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:35:23,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:35:23,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:35:23,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:35:23,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:35:23,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:35:23,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:35:23,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:35:23,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:35:23,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:35:23,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:35:23,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:35:23,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:35:23,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:35:23,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:35:23,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:35:23,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:35:23,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:35:23,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:35:23,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:35:23,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:35:23,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:35:23,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:35:23,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:35:23,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:35:23,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:35:23,134 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 [2020-10-26 20:35:23,174 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:35:23,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:35:23,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:35:23,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:35:23,176 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:35:23,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:35:23,177 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:35:23,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:35:23,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:35:23,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:35:23,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:35:23,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:35:23,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:35:23,178 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:35:23,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:35:23,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:35:23,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:35:23,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:35:23,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:35:23,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:35:23,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:35:23,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:35:23,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:35:23,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:35:23,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:35:23,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:35:23,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:35:23,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:35:23,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:35:23,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:35:23,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:35:23,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:35:23,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:35:23,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:35:23,667 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:35:23,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label45.c [2020-10-26 20:35:23,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6cd5eb6b4/4cabe138fe494a178cbd58a2f013e919/FLAG76c2b28a0 [2020-10-26 20:35:24,447 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:35:24,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label45.c [2020-10-26 20:35:24,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6cd5eb6b4/4cabe138fe494a178cbd58a2f013e919/FLAG76c2b28a0 [2020-10-26 20:35:24,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6cd5eb6b4/4cabe138fe494a178cbd58a2f013e919 [2020-10-26 20:35:24,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:35:24,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:35:24,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:35:24,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:35:24,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:35:24,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:35:24" (1/1) ... [2020-10-26 20:35:24,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3aad05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:24, skipping insertion in model container [2020-10-26 20:35:24,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:35:24" (1/1) ... [2020-10-26 20:35:24,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:35:24,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:35:25,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:35:25,417 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:35:25,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:35:25,531 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:35:25,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:25 WrapperNode [2020-10-26 20:35:25,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:35:25,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:35:25,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:35:25,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:35:25,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:25" (1/1) ... [2020-10-26 20:35:25,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:25" (1/1) ... [2020-10-26 20:35:25,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:25" (1/1) ... [2020-10-26 20:35:25,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:25" (1/1) ... [2020-10-26 20:35:25,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:25" (1/1) ... [2020-10-26 20:35:25,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:25" (1/1) ... [2020-10-26 20:35:25,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:25" (1/1) ... [2020-10-26 20:35:25,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:35:25,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:35:25,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:35:25,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:35:25,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:25" (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 [2020-10-26 20:35:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:35:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:35:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:35:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:35:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:35:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:35:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:35:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:35:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:35:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:35:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:35:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:35:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:35:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:35:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:35:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:35:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:35:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:35:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:35:26,966 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:35:26,967 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:35:26,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:35:26 BoogieIcfgContainer [2020-10-26 20:35:26,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:35:26,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:35:26,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:35:26,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:35:26,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:35:24" (1/3) ... [2020-10-26 20:35:26,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b598c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:35:26, skipping insertion in model container [2020-10-26 20:35:26,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:25" (2/3) ... [2020-10-26 20:35:26,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b598c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:35:26, skipping insertion in model container [2020-10-26 20:35:26,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:35:26" (3/3) ... [2020-10-26 20:35:26,980 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label45.c [2020-10-26 20:35:26,993 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:35:26,999 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:35:27,013 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:35:27,045 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:35:27,045 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:35:27,046 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:35:27,046 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:35:27,046 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:35:27,046 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:35:27,046 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:35:27,046 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:35:27,071 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:35:27,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-26 20:35:27,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:27,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:27,087 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:27,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:27,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1133485441, now seen corresponding path program 1 times [2020-10-26 20:35:27,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:27,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120424495] [2020-10-26 20:35:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:27,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:27,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:29,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:29,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-26 20:35:29,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:29,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2107 [2020-10-26 20:35:29,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:35:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:35:29,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:35:30,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:30,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:30,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:30,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:30,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:30,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:35:30,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:30,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:30,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:35:30,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120424495] [2020-10-26 20:35:30,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:35:30,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:35:30,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786110744] [2020-10-26 20:35:30,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:35:30,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:30,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:35:30,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:30,682 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:35:30,958 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-26 20:35:31,172 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:35:31,364 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:35:31,564 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-26 20:35:31,988 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-26 20:35:32,516 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-10-26 20:35:33,223 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 117 [2020-10-26 20:35:34,016 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 116 [2020-10-26 20:35:34,570 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-26 20:35:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:36,062 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:35:36,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:35:36,066 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 124 [2020-10-26 20:35:36,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:36,080 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:35:36,081 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:35:36,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:35:36,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:35:36,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:35:36,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:35:36,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:35:36,159 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 124 [2020-10-26 20:35:36,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:36,160 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:35:36,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:35:36,161 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:35:36,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-26 20:35:36,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:36,165 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:36,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:35:36,166 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:36,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:36,167 INFO L82 PathProgramCache]: Analyzing trace with hash 312592287, now seen corresponding path program 1 times [2020-10-26 20:35:36,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:36,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [436327409] [2020-10-26 20:35:36,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:36,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:36,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:36,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:37,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-26 20:35:37,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:37,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1449 [2020-10-26 20:35:37,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-26 20:35:37,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:37,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:37,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:37,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:37,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:37,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:35:37,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:37,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:37,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:37,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:37,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:37,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:37,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:37,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:35:37,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:37,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:35:37,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [436327409] [2020-10-26 20:35:37,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:37,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:35:37,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708504508] [2020-10-26 20:35:37,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:35:37,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:37,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:35:37,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:35:37,977 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-26 20:35:39,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:39,504 INFO L93 Difference]: Finished difference Result 485 states and 695 transitions. [2020-10-26 20:35:39,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:35:39,507 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-10-26 20:35:39,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:39,512 INFO L225 Difference]: With dead ends: 485 [2020-10-26 20:35:39,513 INFO L226 Difference]: Without dead ends: 345 [2020-10-26 20:35:39,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:39,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-10-26 20:35:39,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2020-10-26 20:35:39,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-10-26 20:35:39,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 467 transitions. [2020-10-26 20:35:39,549 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 467 transitions. Word has length 132 [2020-10-26 20:35:39,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:39,550 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 467 transitions. [2020-10-26 20:35:39,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:35:39,551 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 467 transitions. [2020-10-26 20:35:39,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-26 20:35:39,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:39,555 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:39,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:35:39,555 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:39,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:39,556 INFO L82 PathProgramCache]: Analyzing trace with hash 396059646, now seen corresponding path program 1 times [2020-10-26 20:35:39,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:39,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1513152503] [2020-10-26 20:35:39,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:39,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:39,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:39,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-26 20:35:40,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:40,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 707 [2020-10-26 20:35:40,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:40,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:40,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-26 20:35:40,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:40,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:40,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:35:40,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:40,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:40,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:40,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:35:40,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:40,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:35:40,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:40,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:40,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:35:40,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,640 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:35:40,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1513152503] [2020-10-26 20:35:40,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:40,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:35:40,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131788820] [2020-10-26 20:35:40,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:35:40,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:40,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:35:40,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:35:40,648 INFO L87 Difference]: Start difference. First operand 343 states and 467 transitions. Second operand 6 states. [2020-10-26 20:35:42,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:42,245 INFO L93 Difference]: Finished difference Result 902 states and 1279 transitions. [2020-10-26 20:35:42,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:35:42,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2020-10-26 20:35:42,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:42,258 INFO L225 Difference]: With dead ends: 902 [2020-10-26 20:35:42,258 INFO L226 Difference]: Without dead ends: 625 [2020-10-26 20:35:42,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:42,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-10-26 20:35:42,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 623. [2020-10-26 20:35:42,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2020-10-26 20:35:42,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 827 transitions. [2020-10-26 20:35:42,311 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 827 transitions. Word has length 135 [2020-10-26 20:35:42,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:42,317 INFO L481 AbstractCegarLoop]: Abstraction has 623 states and 827 transitions. [2020-10-26 20:35:42,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:35:42,317 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 827 transitions. [2020-10-26 20:35:42,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-26 20:35:42,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:42,325 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:42,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:35:42,325 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:42,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:42,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1180836345, now seen corresponding path program 1 times [2020-10-26 20:35:42,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:42,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770595999] [2020-10-26 20:35:42,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:42,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:42,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:42,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:46,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:47,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:47,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 20:35:47,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:35:47,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-26 20:35:47,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:47,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:47,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:47,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-26 20:35:47,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:35:47,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:47,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:47,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:47,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:47,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:47,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:35:47,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:47,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:47,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:47,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:47,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:47,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:47,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:47,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:47,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:47,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:35:47,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:47,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:35:47,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:47,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:47,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:47,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:35:47,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-26 20:35:47,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:35:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:47,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:47,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:47,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 20:35:47,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:47,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-26 20:35:47,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:35:47,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:35:47,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770595999] [2020-10-26 20:35:47,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:47,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:47,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286861558] [2020-10-26 20:35:47,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:47,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:47,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:47,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:47,898 INFO L87 Difference]: Start difference. First operand 623 states and 827 transitions. Second operand 8 states. [2020-10-26 20:35:49,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:49,773 INFO L93 Difference]: Finished difference Result 1460 states and 1995 transitions. [2020-10-26 20:35:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:35:49,774 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-10-26 20:35:49,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:49,780 INFO L225 Difference]: With dead ends: 1460 [2020-10-26 20:35:49,780 INFO L226 Difference]: Without dead ends: 903 [2020-10-26 20:35:49,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:35:49,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-10-26 20:35:49,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 764. [2020-10-26 20:35:49,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 764 states. [2020-10-26 20:35:49,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1025 transitions. [2020-10-26 20:35:49,821 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1025 transitions. Word has length 166 [2020-10-26 20:35:49,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:49,822 INFO L481 AbstractCegarLoop]: Abstraction has 764 states and 1025 transitions. [2020-10-26 20:35:49,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:49,822 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1025 transitions. [2020-10-26 20:35:49,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-26 20:35:49,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:49,827 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:49,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:35:49,827 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:49,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:49,828 INFO L82 PathProgramCache]: Analyzing trace with hash 503867743, now seen corresponding path program 1 times [2020-10-26 20:35:49,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:49,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369026171] [2020-10-26 20:35:49,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:49,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:49,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:49,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:50,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:54,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:54,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-26 20:35:54,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:35:54,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-26 20:35:54,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:54,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:54,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:35:54,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:35:55,096 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:35:55,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:55,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:55,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:35:55,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:55,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:35:55,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:55,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:55,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:35:55,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:55,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:55,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:35:55,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-26 20:35:55,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:55,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:55,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:35:55,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:35:55,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:55,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:35:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:55,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 20:35:55,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:55,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:35:55,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:55,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:55,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-26 20:35:55,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:55,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:55,392 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 51 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:35:55,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369026171] [2020-10-26 20:35:55,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:55,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:35:55,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079222029] [2020-10-26 20:35:55,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:55,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:55,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:55,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:55,394 INFO L87 Difference]: Start difference. First operand 764 states and 1025 transitions. Second operand 8 states. [2020-10-26 20:35:56,918 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:35:57,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:57,437 INFO L93 Difference]: Finished difference Result 1762 states and 2407 transitions. [2020-10-26 20:35:57,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:35:57,438 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2020-10-26 20:35:57,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:57,447 INFO L225 Difference]: With dead ends: 1762 [2020-10-26 20:35:57,447 INFO L226 Difference]: Without dead ends: 1064 [2020-10-26 20:35:57,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:35:57,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-10-26 20:35:57,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1048. [2020-10-26 20:35:57,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2020-10-26 20:35:57,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1368 transitions. [2020-10-26 20:35:57,528 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1368 transitions. Word has length 178 [2020-10-26 20:35:57,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:57,529 INFO L481 AbstractCegarLoop]: Abstraction has 1048 states and 1368 transitions. [2020-10-26 20:35:57,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:57,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1368 transitions. [2020-10-26 20:35:57,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-26 20:35:57,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:57,538 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:57,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:35:57,539 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:57,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:57,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1592080254, now seen corresponding path program 1 times [2020-10-26 20:35:57,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:57,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437556944] [2020-10-26 20:35:57,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:57,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:57,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:57,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:00,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-26 20:36:02,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:02,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-26 20:36:02,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:36:02,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,770 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:36:02,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:02,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:36:02,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:02,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:02,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:02,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:36:02,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:02,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:36:02,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:02,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:02,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:36:02,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:36:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:02,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:36:02,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:02,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:02,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:02,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:36:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 20:36:02,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:36:02,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:02,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-26 20:36:02,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:02,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,044 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 53 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-26 20:36:03,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437556944] [2020-10-26 20:36:03,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:03,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:03,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49143131] [2020-10-26 20:36:03,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:03,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:03,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:03,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:03,050 INFO L87 Difference]: Start difference. First operand 1048 states and 1368 transitions. Second operand 7 states. [2020-10-26 20:36:04,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:04,878 INFO L93 Difference]: Finished difference Result 2048 states and 2704 transitions. [2020-10-26 20:36:04,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:36:04,878 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-10-26 20:36:04,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:04,885 INFO L225 Difference]: With dead ends: 2048 [2020-10-26 20:36:04,885 INFO L226 Difference]: Without dead ends: 1066 [2020-10-26 20:36:04,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:36:04,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-26 20:36:04,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1056. [2020-10-26 20:36:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2020-10-26 20:36:04,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1377 transitions. [2020-10-26 20:36:04,936 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1377 transitions. Word has length 181 [2020-10-26 20:36:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:04,936 INFO L481 AbstractCegarLoop]: Abstraction has 1056 states and 1377 transitions. [2020-10-26 20:36:04,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1377 transitions. [2020-10-26 20:36:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-26 20:36:04,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:04,942 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:04,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:36:04,942 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:04,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:04,943 INFO L82 PathProgramCache]: Analyzing trace with hash 66146332, now seen corresponding path program 1 times [2020-10-26 20:36:04,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:04,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615141824] [2020-10-26 20:36:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:04,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:04,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:05,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:05,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:09,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:09,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-26 20:36:09,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:36:09,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-26 20:36:09,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:36:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:36:09,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:10,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:10,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:10,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:10,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:36:10,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:10,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:10,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:10,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:10,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:36:10,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:10,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:36:10,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:10,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:10,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:10,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:36:10,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:36:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:10,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:10,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:10,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:10,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:36:10,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:36:10,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:36:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:10,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:10,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:10,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:10,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 20:36:10,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:10,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:10,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:10,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:10,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:36:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:10,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:10,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 20:36:10,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:10,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:36:10,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-26 20:36:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:10,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 70 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-26 20:36:10,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615141824] [2020-10-26 20:36:10,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:10,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:36:10,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42299039] [2020-10-26 20:36:10,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:10,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:10,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:10,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:10,536 INFO L87 Difference]: Start difference. First operand 1056 states and 1377 transitions. Second operand 8 states. [2020-10-26 20:36:10,662 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:36:12,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:12,503 INFO L93 Difference]: Finished difference Result 2350 states and 3136 transitions. [2020-10-26 20:36:12,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:36:12,503 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 189 [2020-10-26 20:36:12,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:12,513 INFO L225 Difference]: With dead ends: 2350 [2020-10-26 20:36:12,513 INFO L226 Difference]: Without dead ends: 1360 [2020-10-26 20:36:12,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-26 20:36:12,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2020-10-26 20:36:12,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1342. [2020-10-26 20:36:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1342 states. [2020-10-26 20:36:12,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1732 transitions. [2020-10-26 20:36:12,574 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1732 transitions. Word has length 189 [2020-10-26 20:36:12,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:12,574 INFO L481 AbstractCegarLoop]: Abstraction has 1342 states and 1732 transitions. [2020-10-26 20:36:12,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:12,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1732 transitions. [2020-10-26 20:36:12,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-26 20:36:12,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:12,581 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:12,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:36:12,581 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:12,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:12,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1611343556, now seen corresponding path program 1 times [2020-10-26 20:36:12,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:12,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063820334] [2020-10-26 20:36:12,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:12,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:12,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:12,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:14,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:17,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-26 20:36:17,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:17,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-26 20:36:17,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:17,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:17,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:36:17,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:17,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:17,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:17,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:17,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:17,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:17,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:36:17,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:17,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:17,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:17,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:17,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:17,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:36:17,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:36:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:17,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:17,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:17,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:17,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:17,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:36:17,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:17,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:17,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:17,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:36:17,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:17,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:36:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:17,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:17,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:17,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:17,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:36:17,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:17,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:17,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:36:17,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:17,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:17,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:36:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:17,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:17,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 20:36:17,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:17,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:36:17,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-26 20:36:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:17,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:17,929 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 68 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:36:17,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063820334] [2020-10-26 20:36:17,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:17,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:17,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517345626] [2020-10-26 20:36:17,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:17,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:17,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:17,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:17,932 INFO L87 Difference]: Start difference. First operand 1342 states and 1732 transitions. Second operand 7 states. [2020-10-26 20:36:19,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:19,712 INFO L93 Difference]: Finished difference Result 3476 states and 4657 transitions. [2020-10-26 20:36:19,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:36:19,721 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-10-26 20:36:19,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:19,734 INFO L225 Difference]: With dead ends: 3476 [2020-10-26 20:36:19,734 INFO L226 Difference]: Without dead ends: 2200 [2020-10-26 20:36:19,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:36:19,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2020-10-26 20:36:19,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 2182. [2020-10-26 20:36:19,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2182 states. [2020-10-26 20:36:19,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2794 transitions. [2020-10-26 20:36:19,829 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 2794 transitions. Word has length 191 [2020-10-26 20:36:19,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:19,829 INFO L481 AbstractCegarLoop]: Abstraction has 2182 states and 2794 transitions. [2020-10-26 20:36:19,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:19,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 2794 transitions. [2020-10-26 20:36:19,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-26 20:36:19,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:19,839 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:19,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:36:19,839 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:19,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:19,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1283660036, now seen corresponding path program 1 times [2020-10-26 20:36:19,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:19,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229741062] [2020-10-26 20:36:19,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:19,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:19,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:19,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:23,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:23,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-26 20:36:23,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:23,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4097 [2020-10-26 20:36:23,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:36:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:36:23,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:24,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:24,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:24,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:24,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:24,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:24,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:36:24,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:24,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:24,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:24,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:24,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:24,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:24,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:24,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:24,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:24,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:24,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:36:24,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:24,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:24,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:24,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:36:24,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:24,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:24,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:24,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:24,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:36:24,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:24,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-26 20:36:24,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:24,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:24,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:24,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:36:24,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:24,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:36:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:24,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:24,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:24,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:24,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:36:24,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:36:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:24,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:24,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:36:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:24,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:24,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:24,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:36:24,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:24,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:36:24,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:36:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:24,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 100 proven. 44 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:36:24,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229741062] [2020-10-26 20:36:24,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:24,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:36:24,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564890401] [2020-10-26 20:36:24,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:24,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:24,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:24,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:24,397 INFO L87 Difference]: Start difference. First operand 2182 states and 2794 transitions. Second operand 8 states. [2020-10-26 20:36:25,433 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:36:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:27,143 INFO L93 Difference]: Finished difference Result 5262 states and 6799 transitions. [2020-10-26 20:36:27,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:36:27,143 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 223 [2020-10-26 20:36:27,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:27,161 INFO L225 Difference]: With dead ends: 5262 [2020-10-26 20:36:27,161 INFO L226 Difference]: Without dead ends: 3146 [2020-10-26 20:36:27,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:36:27,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2020-10-26 20:36:27,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3141. [2020-10-26 20:36:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3141 states. [2020-10-26 20:36:27,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 3823 transitions. [2020-10-26 20:36:27,273 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 3823 transitions. Word has length 223 [2020-10-26 20:36:27,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:27,274 INFO L481 AbstractCegarLoop]: Abstraction has 3141 states and 3823 transitions. [2020-10-26 20:36:27,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:27,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 3823 transitions. [2020-10-26 20:36:27,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-26 20:36:27,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:27,285 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:27,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:36:27,286 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:27,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:27,286 INFO L82 PathProgramCache]: Analyzing trace with hash -779026627, now seen corresponding path program 1 times [2020-10-26 20:36:27,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:27,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370825081] [2020-10-26 20:36:27,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:27,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:27,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:27,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:27,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:28,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-26 20:36:32,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:36:32,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-26 20:36:32,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:32,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:32,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:36:32,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:32,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:32,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:36:32,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:32,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:36:32,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:32,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:36:32,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:32,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:32,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:36:32,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:36:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:36:32,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:32,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 20:36:32,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:32,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:32,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:36:32,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-26 20:36:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:32,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:32,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:36:32,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:32,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:36:32,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:32,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 20:36:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:36:32,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:32,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:36:32,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:32,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:36:32,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:32,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 103 proven. 52 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-26 20:36:32,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370825081] [2020-10-26 20:36:32,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:32,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:36:32,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102302169] [2020-10-26 20:36:32,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:32,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:32,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:32,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:32,780 INFO L87 Difference]: Start difference. First operand 3141 states and 3823 transitions. Second operand 8 states. [2020-10-26 20:36:33,561 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:36:34,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:34,834 INFO L93 Difference]: Finished difference Result 6101 states and 7503 transitions. [2020-10-26 20:36:34,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:36:34,834 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 226 [2020-10-26 20:36:34,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:34,850 INFO L225 Difference]: With dead ends: 6101 [2020-10-26 20:36:34,850 INFO L226 Difference]: Without dead ends: 3028 [2020-10-26 20:36:34,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:36:34,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2020-10-26 20:36:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 3020. [2020-10-26 20:36:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3020 states. [2020-10-26 20:36:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 3676 transitions. [2020-10-26 20:36:34,965 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 3676 transitions. Word has length 226 [2020-10-26 20:36:34,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:34,965 INFO L481 AbstractCegarLoop]: Abstraction has 3020 states and 3676 transitions. [2020-10-26 20:36:34,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 3676 transitions. [2020-10-26 20:36:34,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-26 20:36:34,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:34,977 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:34,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:36:34,978 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:34,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:34,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1400463901, now seen corresponding path program 1 times [2020-10-26 20:36:34,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:34,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26732694] [2020-10-26 20:36:34,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:35,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:35,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:35,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:35,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-26 20:36:35,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:35,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-10-26 20:36:35,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:35,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:35,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:36:35,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-26 20:36:35,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:35,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:35,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:35,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:35,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:35,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:35,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:35,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:35,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:35,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:35,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:35,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:35,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:35,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:35,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:35,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:35,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:35,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 20:36:35,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:35,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:35,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:35,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:35,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:35,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:36:35,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:35,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:36:35,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:35,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:35,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:35,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:35,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:35,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:36:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:35,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:36,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:36,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:36:36,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:36,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-26 20:36:36,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:36,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:36,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:36:36,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:36,254 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-26 20:36:36,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26732694] [2020-10-26 20:36:36,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:36,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:36:36,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194291534] [2020-10-26 20:36:36,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:36:36,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:36,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:36:36,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:36:36,256 INFO L87 Difference]: Start difference. First operand 3020 states and 3676 transitions. Second operand 5 states. [2020-10-26 20:36:37,196 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-26 20:36:37,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:37,855 INFO L93 Difference]: Finished difference Result 6060 states and 7442 transitions. [2020-10-26 20:36:37,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:36:37,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 240 [2020-10-26 20:36:37,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:37,875 INFO L225 Difference]: With dead ends: 6060 [2020-10-26 20:36:37,876 INFO L226 Difference]: Without dead ends: 3022 [2020-10-26 20:36:37,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:37,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3022 states. [2020-10-26 20:36:37,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3022 to 3018. [2020-10-26 20:36:37,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3018 states. [2020-10-26 20:36:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3018 states to 3018 states and 3659 transitions. [2020-10-26 20:36:37,973 INFO L78 Accepts]: Start accepts. Automaton has 3018 states and 3659 transitions. Word has length 240 [2020-10-26 20:36:37,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:37,974 INFO L481 AbstractCegarLoop]: Abstraction has 3018 states and 3659 transitions. [2020-10-26 20:36:37,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:36:37,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3018 states and 3659 transitions. [2020-10-26 20:36:37,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-26 20:36:37,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:37,985 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:37,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:36:37,986 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:37,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:37,986 INFO L82 PathProgramCache]: Analyzing trace with hash -91509095, now seen corresponding path program 1 times [2020-10-26 20:36:37,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:37,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1479795246] [2020-10-26 20:36:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:38,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:38,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:38,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:39,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:39,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-26 20:36:39,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:39,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1415 [2020-10-26 20:36:39,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:39,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:39,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:36:39,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:36:39,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:39,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:39,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:39,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:39,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:39,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:39,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:39,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:39,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:39,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:39,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:39,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:39,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:36:39,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:39,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:36:39,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:39,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:39,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:39,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:36:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:39,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:39,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:39,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:36:39,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:36:39,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:36:39,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:39,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:36:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:39,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:39,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:39,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:39,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:39,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:36:39,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:39,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:39,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:36:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:39,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:39,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:39,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:36:39,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:39,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:36:39,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:39,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:39,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:36:39,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:39,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:39,806 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 157 proven. 14 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-26 20:36:39,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1479795246] [2020-10-26 20:36:39,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:39,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:39,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346255474] [2020-10-26 20:36:39,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:39,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:39,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:39,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:39,808 INFO L87 Difference]: Start difference. First operand 3018 states and 3659 transitions. Second operand 7 states. [2020-10-26 20:36:41,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:41,813 INFO L93 Difference]: Finished difference Result 6113 states and 7423 transitions. [2020-10-26 20:36:41,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:36:41,814 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 256 [2020-10-26 20:36:41,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:41,831 INFO L225 Difference]: With dead ends: 6113 [2020-10-26 20:36:41,831 INFO L226 Difference]: Without dead ends: 3163 [2020-10-26 20:36:41,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:36:41,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2020-10-26 20:36:41,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 3159. [2020-10-26 20:36:41,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3159 states. [2020-10-26 20:36:41,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 3754 transitions. [2020-10-26 20:36:41,938 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 3754 transitions. Word has length 256 [2020-10-26 20:36:41,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:41,938 INFO L481 AbstractCegarLoop]: Abstraction has 3159 states and 3754 transitions. [2020-10-26 20:36:41,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:41,939 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 3754 transitions. [2020-10-26 20:36:41,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-10-26 20:36:41,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:41,951 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:41,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:36:41,952 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:41,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:41,952 INFO L82 PathProgramCache]: Analyzing trace with hash -741746730, now seen corresponding path program 1 times [2020-10-26 20:36:41,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:41,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153581540] [2020-10-26 20:36:41,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:42,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:42,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:42,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:43,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:43,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-26 20:36:43,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:43,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1641 [2020-10-26 20:36:43,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:36:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:36:43,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:43,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:43,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:43,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:43,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:43,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:43,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:43,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:43,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:43,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:43,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:43,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:43,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:36:43,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:43,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:36:43,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:36:43,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:43,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:36:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:43,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:43,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:43,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:43,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:43,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-26 20:36:43,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:43,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:43,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:43,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:36:43,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:43,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:36:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:43,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:43,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:43,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:43,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:43,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:43,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:36:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:43,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:43,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:36:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:43,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:43,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:43,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:43,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:43,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:36:43,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:43,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:43,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:36:43,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:43,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:43,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:36:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:43,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:43,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:43,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:36:43,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:43,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:36:43,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:43,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:43,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:36:43,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:43,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:44,049 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 198 proven. 64 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-26 20:36:44,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153581540] [2020-10-26 20:36:44,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:44,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:44,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122332925] [2020-10-26 20:36:44,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:44,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:44,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:44,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:44,052 INFO L87 Difference]: Start difference. First operand 3159 states and 3754 transitions. Second operand 7 states. [2020-10-26 20:36:44,469 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:36:46,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:46,188 INFO L93 Difference]: Finished difference Result 6665 states and 7972 transitions. [2020-10-26 20:36:46,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:36:46,201 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 287 [2020-10-26 20:36:46,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:46,219 INFO L225 Difference]: With dead ends: 6665 [2020-10-26 20:36:46,219 INFO L226 Difference]: Without dead ends: 3574 [2020-10-26 20:36:46,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:46,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2020-10-26 20:36:46,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3294. [2020-10-26 20:36:46,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3294 states. [2020-10-26 20:36:46,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 3902 transitions. [2020-10-26 20:36:46,346 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 3902 transitions. Word has length 287 [2020-10-26 20:36:46,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:46,346 INFO L481 AbstractCegarLoop]: Abstraction has 3294 states and 3902 transitions. [2020-10-26 20:36:46,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:46,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 3902 transitions. [2020-10-26 20:36:46,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-26 20:36:46,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:46,361 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:46,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:36:46,362 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:46,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:46,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1826718346, now seen corresponding path program 1 times [2020-10-26 20:36:46,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:46,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740551959] [2020-10-26 20:36:46,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:46,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:46,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:46,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:46,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-26 20:36:46,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:46,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-10-26 20:36:46,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:46,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:46,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-26 20:36:46,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 20:36:46,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:47,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:47,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:47,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:47,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:47,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:47,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:36:47,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:47,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:47,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:47,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:47,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:47,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:36:47,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:47,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:36:47,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:47,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:47,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:47,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:47,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:36:47,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:36:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:47,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:47,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:47,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:47,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:47,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:36:47,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:47,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:47,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:47,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:47,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:47,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:36:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:47,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:47,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:47,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:47,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:47,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:36:47,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:47,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:47,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:36:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:47,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:47,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:47,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:47,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:47,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:47,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:47,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:47,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:47,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:47,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:47,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:36:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:47,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:47,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:47,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:36:47,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:47,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:36:47,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:47,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:47,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:47,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:36:47,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:47,533 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-26 20:36:47,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740551959] [2020-10-26 20:36:47,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:47,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:36:47,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46818897] [2020-10-26 20:36:47,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:36:47,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:47,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:36:47,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:36:47,536 INFO L87 Difference]: Start difference. First operand 3294 states and 3902 transitions. Second operand 5 states. [2020-10-26 20:36:48,470 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:36:48,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:48,889 INFO L93 Difference]: Finished difference Result 6600 states and 7884 transitions. [2020-10-26 20:36:48,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:36:48,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 309 [2020-10-26 20:36:48,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:48,916 INFO L225 Difference]: With dead ends: 6600 [2020-10-26 20:36:48,917 INFO L226 Difference]: Without dead ends: 3296 [2020-10-26 20:36:48,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:48,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2020-10-26 20:36:49,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 3292. [2020-10-26 20:36:49,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3292 states. [2020-10-26 20:36:49,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 3893 transitions. [2020-10-26 20:36:49,019 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 3893 transitions. Word has length 309 [2020-10-26 20:36:49,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:49,020 INFO L481 AbstractCegarLoop]: Abstraction has 3292 states and 3893 transitions. [2020-10-26 20:36:49,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:36:49,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 3893 transitions. [2020-10-26 20:36:49,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-26 20:36:49,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:49,035 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:49,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:36:49,035 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:49,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:49,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1889249374, now seen corresponding path program 1 times [2020-10-26 20:36:49,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:49,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611746597] [2020-10-26 20:36:49,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:49,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:49,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:49,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:52,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:52,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-26 20:36:52,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:52,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3309 [2020-10-26 20:36:52,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:36:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-26 20:36:52,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:52,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:52,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:52,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:52,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:52,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:52,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:36:52,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:52,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:52,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:52,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:52,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:52,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:36:52,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:52,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:36:52,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:52,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:52,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:36:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:52,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:52,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:52,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:52,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:52,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:36:52,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:52,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:52,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:52,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:52,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:52,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:36:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:52,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:52,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:52,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:52,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:52,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:52,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:52,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:52,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:36:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:52,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:52,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:52,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:52,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:52,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:36:52,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:36:52,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:52,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:36:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:52,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:52,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:52,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:52,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:36:52,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:52,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-26 20:36:52,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:52,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:52,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:52,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-26 20:36:52,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:52,906 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 254 proven. 53 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-26 20:36:52,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611746597] [2020-10-26 20:36:52,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:52,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:52,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944731919] [2020-10-26 20:36:52,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:52,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:52,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:52,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:52,908 INFO L87 Difference]: Start difference. First operand 3292 states and 3893 transitions. Second operand 7 states. [2020-10-26 20:36:54,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:54,419 INFO L93 Difference]: Finished difference Result 6572 states and 7854 transitions. [2020-10-26 20:36:54,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:36:54,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 315 [2020-10-26 20:36:54,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:54,440 INFO L225 Difference]: With dead ends: 6572 [2020-10-26 20:36:54,440 INFO L226 Difference]: Without dead ends: 3348 [2020-10-26 20:36:54,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:36:54,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3348 states. [2020-10-26 20:36:54,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3348 to 3153. [2020-10-26 20:36:54,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3153 states. [2020-10-26 20:36:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 3574 transitions. [2020-10-26 20:36:54,542 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 3574 transitions. Word has length 315 [2020-10-26 20:36:54,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:54,543 INFO L481 AbstractCegarLoop]: Abstraction has 3153 states and 3574 transitions. [2020-10-26 20:36:54,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:54,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 3574 transitions. [2020-10-26 20:36:54,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-26 20:36:54,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:54,555 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:54,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:36:54,556 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:54,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:54,556 INFO L82 PathProgramCache]: Analyzing trace with hash -277250015, now seen corresponding path program 1 times [2020-10-26 20:36:54,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:54,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451673526] [2020-10-26 20:36:54,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:54,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:54,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:55,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:55,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 342 [2020-10-26 20:36:55,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:55,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1144 [2020-10-26 20:36:55,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:55,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:55,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-26 20:36:55,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 20:36:55,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:55,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:55,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:55,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:55,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:55,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:55,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:55,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:55,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:55,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:55,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:55,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:55,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:55,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:55,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:36:55,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:55,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:36:55,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:55,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:55,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:55,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:55,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:55,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:36:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:56,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:56,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:56,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:56,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:56,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:36:56,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:56,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:56,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:36:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:56,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:56,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:56,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:56,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:56,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:36:56,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:56,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:56,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:56,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:56,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:56,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:36:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:56,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:56,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:56,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 20:36:56,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 20:36:56,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-26 20:36:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:56,164 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-26 20:36:56,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451673526] [2020-10-26 20:36:56,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:56,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:36:56,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758081343] [2020-10-26 20:36:56,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:36:56,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:56,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:36:56,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:36:56,166 INFO L87 Difference]: Start difference. First operand 3153 states and 3574 transitions. Second operand 5 states. [2020-10-26 20:36:56,364 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:36:57,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:57,675 INFO L93 Difference]: Finished difference Result 6645 states and 7546 transitions. [2020-10-26 20:36:57,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:36:57,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 324 [2020-10-26 20:36:57,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:57,684 INFO L225 Difference]: With dead ends: 6645 [2020-10-26 20:36:57,684 INFO L226 Difference]: Without dead ends: 2861 [2020-10-26 20:36:57,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:57,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2020-10-26 20:36:57,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2855. [2020-10-26 20:36:57,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-10-26 20:36:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3068 transitions. [2020-10-26 20:36:57,766 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3068 transitions. Word has length 324 [2020-10-26 20:36:57,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:57,767 INFO L481 AbstractCegarLoop]: Abstraction has 2855 states and 3068 transitions. [2020-10-26 20:36:57,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:36:57,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3068 transitions. [2020-10-26 20:36:57,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-26 20:36:57,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:57,776 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:57,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 20:36:57,777 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:57,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:57,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1289248265, now seen corresponding path program 1 times [2020-10-26 20:36:57,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:57,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608158561] [2020-10-26 20:36:57,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:57,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:58,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 356 [2020-10-26 20:36:58,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 723 [2020-10-26 20:36:58,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-26 20:36:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 20:36:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:58,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:58,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:58,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:58,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:58,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:36:58,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:58,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:58,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:58,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:58,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:58,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:36:58,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:58,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:36:58,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:58,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:58,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:58,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:58,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:58,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:36:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:58,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:58,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:58,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:58,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:36:58,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:58,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:58,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:36:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:58,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:58,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:58,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:58,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:36:58,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:58,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:58,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:58,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:58,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:36:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:58,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:58,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:58,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:58,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:58,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:58,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:58,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:36:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:58,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:59,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:59,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 20:36:59,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:59,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 20:36:59,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:59,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:59,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:59,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 20:36:59,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:59,196 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-26 20:36:59,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608158561] [2020-10-26 20:36:59,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:59,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:36:59,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746442246] [2020-10-26 20:36:59,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:36:59,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:59,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:36:59,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:36:59,198 INFO L87 Difference]: Start difference. First operand 2855 states and 3068 transitions. Second operand 5 states. [2020-10-26 20:37:00,109 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:37:00,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:00,383 INFO L93 Difference]: Finished difference Result 5586 states and 6009 transitions. [2020-10-26 20:37:00,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:37:00,383 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 336 [2020-10-26 20:37:00,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:00,384 INFO L225 Difference]: With dead ends: 5586 [2020-10-26 20:37:00,385 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:37:00,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:37:00,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:37:00,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:37:00,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:37:00,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:37:00,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 336 [2020-10-26 20:37:00,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:00,396 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:37:00,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:37:00,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:37:00,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:37:00,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 20:37:00,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:37:01,399 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 174 [2020-10-26 20:37:01,596 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 166 [2020-10-26 20:37:01,921 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 40 [2020-10-26 20:37:04,005 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 250 DAG size of output: 95 [2020-10-26 20:37:04,549 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 70 [2020-10-26 20:37:04,661 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:37:05,209 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 70 [2020-10-26 20:37:05,632 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2020-10-26 20:37:05,637 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:37:05,637 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:37:05,637 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:37:05,638 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:37:05,638 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:37:05,638 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|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:37:05,638 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:37:05,638 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,638 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,638 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:37:05,639 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:37:05,640 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:37:05,640 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:37:05,640 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:37:05,640 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,643 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,643 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,643 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,643 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,643 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,644 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:37:05,644 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:37:05,644 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:37:05,644 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:37:05,644 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:37:05,644 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:37:05,645 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:37:05,645 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:37:05,645 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:37:05,645 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:37:05,645 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,645 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,645 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,645 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,645 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,645 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,645 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:37:05,646 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:37:05,646 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:37:05,646 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:37:05,646 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:37:05,646 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:37:05,646 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:37:05,647 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:37:05,647 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:37:05,647 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:37:05,647 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:37:05,647 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:37:05,647 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:37:05,647 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:37:05,647 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:37:05,649 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,649 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:37:05,650 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:37:05,651 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:37:05,652 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:37:05,652 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:37:05,652 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:37:05,652 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:37:05,652 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,652 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,652 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,652 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,652 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,652 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:37:05,657 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:37:05,657 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:37:05,657 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,657 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,657 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:37:05,657 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:37:05,657 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:37:05,657 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:37:05,657 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:37:05,657 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:37:05,657 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:37:05,658 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:37:05,659 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:37:05,659 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:37:05,659 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:37:05,659 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:37:05,659 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:37:05,659 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:37:05,659 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,659 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,659 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,659 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,660 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,660 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:37:05,660 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:37:05,668 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:37:05,668 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:37:05,669 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:37:05,669 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:37:05,669 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:37:05,669 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:37:05,669 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,669 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,669 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse16 (= ~a8~0 15)) (.cse15 (= ~a7~0 |old(~a7~0)|)) (.cse6 (= ~a17~0 |old(~a17~0)|)) (.cse7 (= ~a21~0 1)) (.cse8 (= ~a20~0 |old(~a20~0)|)) (.cse21 (= ~a16~0 |old(~a16~0)|)) (.cse20 (= ~a8~0 |old(~a8~0)|))) (let ((.cse3 (not (= 14 |old(~a8~0)|))) (.cse4 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse9 (= 14 ~a8~0)) (.cse10 (= ~a7~0 0)) (.cse5 (not (= |old(~a7~0)| |old(~a20~0)|))) (.cse12 (not (= |old(~a7~0)| 0))) (.cse13 (= 5 ~a16~0)) (.cse14 (not (= 5 |old(~a16~0)|))) (.cse19 (not (<= |old(~a16~0)| 4))) (.cse11 (not (= ~a12~0 8))) (.cse1 (and .cse15 .cse6 .cse7 .cse8 .cse21 .cse20)) (.cse18 (and .cse15 .cse6 .cse7 .cse8 .cse21 .cse16)) (.cse17 (not (= 15 |old(~a8~0)|))) (.cse2 (not (= |old(~a21~0)| 1))) (.cse0 (not (= |old(~a7~0)| 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 (and .cse6 .cse7 .cse8 .cse9 (= ~a16~0 4) .cse10) .cse2 .cse11 .cse12 (not (= 4 |old(~a16~0)|))) (or .cse3 .cse4 (and .cse6 .cse7 .cse8 .cse9 .cse13 .cse10) .cse5 .cse14 .cse2 .cse11 .cse12) (or (and .cse15 .cse6 .cse7 .cse8 .cse16 .cse13) .cse14 .cse17 .cse2) (or .cse18 .cse19 .cse17 .cse2) (or (not (<= 4 |old(~a16~0)|)) (and .cse15 .cse6 .cse7 .cse8 (<= ~a16~0 4) .cse20 (<= 4 ~a16~0)) (not (<= |old(~a8~0)| 13)) .cse19 (not (<= 13 |old(~a8~0)|)) (and (not (< 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 0))) .cse2 .cse11) (or (not (= |old(~a20~0)| 1)) .cse1 .cse2) (or (not (= 6 |old(~a16~0)|)) .cse18 .cse17 .cse2 (not (<= |old(~a20~0)| 0))) (or (not (<= |old(~a21~0)| 0)) .cse0 (and .cse15 .cse6 (= ~a21~0 |old(~a21~0)|) .cse8 .cse21 .cse20))))) [2020-10-26 20:37:05,669 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,670 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,670 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,670 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:37:05,670 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:37:05,670 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:37:05,670 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:37:05,670 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:37:05,670 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:37:05,670 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:37:05,670 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:37:05,670 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:37:05,671 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:37:05,671 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:37:05,671 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,671 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,674 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,674 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,674 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:37:05,675 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,675 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,675 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:37:05,675 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:37:05,675 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:37:05,675 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:37:05,675 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:37:05,675 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:37:05,675 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:37:05,675 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:37:05,675 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:37:05,676 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:37:05,676 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:37:05,676 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:37:05,676 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,676 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,678 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,678 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,678 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,678 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:37:05,679 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:05,679 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:37:05,679 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:37:05,679 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:37:05,679 INFO L270 CegarLoopResult]: At program point L529(line 529) the Hoare annotation is: (let ((.cse4 (not (= 14 |old(~a8~0)|))) (.cse5 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse6 (not (= |old(~a7~0)| |old(~a20~0)|))) (.cse1 (not (= 5 |old(~a16~0)|))) (.cse8 (not (= |old(~a7~0)| 0))) (.cse0 (not (= |old(~a7~0)| 1))) (.cse7 (not (= ~a12~0 8))) (.cse9 (not (<= |old(~a16~0)| 4))) (.cse2 (not (= 15 |old(~a8~0)|))) (.cse3 (not (= |old(~a21~0)| 1)))) (and (or (not (<= |old(~a21~0)| 0)) .cse0) (or .cse1 .cse2 .cse3) (or (not (= 6 |old(~a16~0)|)) .cse2 .cse3 (not (<= |old(~a20~0)| 0))) (or .cse4 .cse5 .cse6 .cse3 .cse7 .cse8 (not (= 4 |old(~a16~0)|))) (or .cse4 .cse5 .cse6 .cse1 .cse3 .cse7 .cse8) (or .cse0 .cse3) (or (not (<= 4 |old(~a16~0)|)) (not (<= |old(~a8~0)| 13)) .cse9 (not (<= 13 |old(~a8~0)|)) (and (not (< 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 0))) .cse3 .cse7) (or (not (= |old(~a20~0)| 1)) .cse3) (or .cse9 .cse2 .cse3))) [2020-10-26 20:37:05,679 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:37:05,679 INFO L274 CegarLoopResult]: For program point L529-1(line 529) no Hoare annotation was computed. [2020-10-26 20:37:05,679 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:37:05,680 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:37:05,680 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:37:05,680 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:37:05,680 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:37:05,680 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:37:05,680 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:37:05,680 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:37:05,680 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:37:05,680 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:37:05,680 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:37:05,680 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:37:05,680 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:37:05,681 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:37:05,681 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:37:05,681 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse4 (<= ~a16~0 4)) (.cse3 (= ~a7~0 1)) (.cse2 (= 5 ~a16~0)) (.cse1 (= ~a8~0 15)) (.cse5 (<= ~a21~0 1)) (.cse6 (<= 1 ~a21~0)) (.cse0 (= ~a21~0 1)) (.cse7 (= 14 ~a8~0)) (.cse8 (= ~a17~0 ~a7~0)) (.cse9 (= ~a20~0 ~a7~0)) (.cse10 (= ~a7~0 0))) (or (and .cse0 .cse1 .cse2) (not (<= |old(~a8~0)| 15)) (and .cse0 .cse3) (not (= |old(~a20~0)| 1)) (and (<= 13 ~a8~0) .cse4 (<= 4 ~a16~0) .cse5 (or (<= ~a17~0 0) (< 1 ~a17~0)) .cse6 (<= ~a8~0 13)) (not (= |old(~a21~0)| 1)) (and .cse0 .cse4 .cse1) (and .cse3 (<= ~a21~0 0)) (not (= |old(~a17~0)| 1)) (and .cse0 .cse7 .cse2 .cse8 .cse9 .cse10) (and .cse0 (= ~a16~0 6) .cse1 (<= ~a20~0 0)) (not (<= 15 |old(~a8~0)|)) (and (= ~a20~0 1) .cse5 .cse6) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse7 (= ~a16~0 4) .cse8 .cse9 .cse10) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:37:05,681 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:37:05,681 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:37:05,682 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse4 (<= ~a16~0 4)) (.cse3 (= ~a7~0 1)) (.cse2 (= 5 ~a16~0)) (.cse1 (= ~a8~0 15)) (.cse5 (<= ~a21~0 1)) (.cse6 (<= 1 ~a21~0)) (.cse0 (= ~a21~0 1)) (.cse7 (= 14 ~a8~0)) (.cse8 (= ~a17~0 ~a7~0)) (.cse9 (= ~a20~0 ~a7~0)) (.cse10 (= ~a7~0 0))) (or (and .cse0 .cse1 .cse2) (not (<= |old(~a8~0)| 15)) (and .cse0 .cse3) (not (= |old(~a20~0)| 1)) (and (<= 13 ~a8~0) .cse4 (<= 4 ~a16~0) .cse5 (or (<= ~a17~0 0) (< 1 ~a17~0)) .cse6 (<= ~a8~0 13)) (not (= |old(~a21~0)| 1)) (and .cse0 .cse4 .cse1) (and .cse3 (<= ~a21~0 0)) (not (= |old(~a17~0)| 1)) (and .cse0 .cse7 .cse2 .cse8 .cse9 .cse10) (and .cse0 (= ~a16~0 6) .cse1 (<= ~a20~0 0)) (not (<= 15 |old(~a8~0)|)) (and (= ~a20~0 1) .cse5 .cse6) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse7 (= ~a16~0 4) .cse8 .cse9 .cse10) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:37:05,682 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:37:05,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:37:05 BoogieIcfgContainer [2020-10-26 20:37:05,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:37:05,738 INFO L168 Benchmark]: Toolchain (without parser) took 101040.63 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 102.0 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 702.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:05,738 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:37:05,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 822.04 ms. Allocated memory is still 151.0 MB. Free memory was 101.5 MB in the beginning and 122.3 MB in the end (delta: -20.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:05,739 INFO L168 Benchmark]: Boogie Preprocessor took 110.73 ms. Allocated memory is still 151.0 MB. Free memory was 122.3 MB in the beginning and 117.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:05,740 INFO L168 Benchmark]: RCFGBuilder took 1325.24 ms. Allocated memory is still 151.0 MB. Free memory was 117.6 MB in the beginning and 80.3 MB in the end (delta: 37.3 MB). Peak memory consumption was 61.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:05,742 INFO L168 Benchmark]: TraceAbstraction took 98763.82 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 79.7 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 679.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:05,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 822.04 ms. Allocated memory is still 151.0 MB. Free memory was 101.5 MB in the beginning and 122.3 MB in the end (delta: -20.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.73 ms. Allocated memory is still 151.0 MB. Free memory was 122.3 MB in the beginning and 117.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1325.24 ms. Allocated memory is still 151.0 MB. Free memory was 117.6 MB in the beginning and 80.3 MB in the end (delta: 37.3 MB). Peak memory consumption was 61.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 98763.82 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 79.7 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 679.8 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: 585]: Loop Invariant Derived loop invariant: (((((((((((((((((a21 == 1 && a8 == 15) && 5 == a16) || !(\old(a8) <= 15)) || (a21 == 1 && a7 == 1)) || !(\old(a20) == 1)) || ((((((13 <= a8 && a16 <= 4) && 4 <= a16) && a21 <= 1) && (a17 <= 0 || 1 < a17)) && 1 <= a21) && a8 <= 13)) || !(\old(a21) == 1)) || ((a21 == 1 && a16 <= 4) && a8 == 15)) || (a7 == 1 && a21 <= 0)) || !(\old(a17) == 1)) || (((((a21 == 1 && 14 == a8) && 5 == a16) && a17 == a7) && a20 == a7) && a7 == 0)) || (((a21 == 1 && a16 == 6) && a8 == 15) && a20 <= 0)) || !(15 <= \old(a8))) || ((a20 == 1 && a21 <= 1) && 1 <= a21)) || !(5 == \old(a16))) || (((((a21 == 1 && 14 == a8) && a16 == 4) && a17 == a7) && a20 == a7) && a7 == 0)) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 93.3s, OverallIterations: 17, TraceHistogramMax: 6, AutomataDifference: 34.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 441 SDtfs, 6544 SDslu, 581 SDs, 0 SdLazy, 13769 SolverSat, 1812 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 354 GetRequests, 193 SyntacticMatches, 12 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3294occurred 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, 17 MinimizatonAttempts, 711 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 529 PreInvPairs, 585 NumberOfFragments, 971 HoareAnnotationTreeSize, 529 FomulaSimplifications, 8641 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 5751 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 54.7s InterpolantComputationTime, 3812 NumberOfCodeBlocks, 3812 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3795 ConstructedInterpolants, 0 QuantifiedInterpolants, 4395855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 2977/3307 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...