/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_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:29:55,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:29:55,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:29:55,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:29:55,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:29:55,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:29:55,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:29:55,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:29:55,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:29:55,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:29:55,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:29:55,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:29:55,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:29:55,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:29:55,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:29:55,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:29:55,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:29:55,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:29:55,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:29:55,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:29:55,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:29:55,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:29:55,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:29:55,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:29:55,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:29:55,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:29:55,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:29:55,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:29:55,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:29:55,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:29:55,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:29:55,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:29:55,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:29:55,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:29:55,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:29:55,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:29:55,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:29:55,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:29:55,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:29:55,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:29:55,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:29:55,165 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 20:29:55,214 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:29:55,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:29:55,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:29:55,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:29:55,216 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:29:55,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:29:55,217 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:29:55,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:29:55,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:29:55,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:29:55,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:29:55,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:29:55,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:29:55,218 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:29:55,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:29:55,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:29:55,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:29:55,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:29:55,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:29:55,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:29:55,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:29:55,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:29:55,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:29:55,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:29:55,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:29:55,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:29:55,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:29:55,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:29:55,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:29:55,222 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:29:55,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:29:55,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:29:55,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:29:55,664 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:29:55,664 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:29:55,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label04.c [2020-10-26 20:29:55,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6db5b47b3/3de4300087a945ef9a81713434c7fc1c/FLAGf13f0617e [2020-10-26 20:29:56,429 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:29:56,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label04.c [2020-10-26 20:29:56,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6db5b47b3/3de4300087a945ef9a81713434c7fc1c/FLAGf13f0617e [2020-10-26 20:29:56,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6db5b47b3/3de4300087a945ef9a81713434c7fc1c [2020-10-26 20:29:56,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:29:56,677 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:29:56,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:29:56,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:29:56,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:29:56,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:29:56" (1/1) ... [2020-10-26 20:29:56,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4d9770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:29:56, skipping insertion in model container [2020-10-26 20:29:56,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:29:56" (1/1) ... [2020-10-26 20:29:56,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:29:56,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:29:57,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:29:57,206 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:29:57,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:29:57,398 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:29:57,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:29:57 WrapperNode [2020-10-26 20:29:57,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:29:57,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:29:57,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:29:57,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:29:57,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:29:57" (1/1) ... [2020-10-26 20:29:57,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:29:57" (1/1) ... [2020-10-26 20:29:57,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:29:57" (1/1) ... [2020-10-26 20:29:57,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:29:57" (1/1) ... [2020-10-26 20:29:57,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:29:57" (1/1) ... [2020-10-26 20:29:57,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:29:57" (1/1) ... [2020-10-26 20:29:57,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:29:57" (1/1) ... [2020-10-26 20:29:57,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:29:57,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:29:57,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:29:57,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:29:57,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:29:57" (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 20:29:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:29:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:29:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:29:57,614 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:29:57,614 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:29:57,615 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:29:57,615 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:29:57,615 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:29:57,615 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:29:57,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:29:57,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:29:57,616 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:29:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:29:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:29:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:29:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:29:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:29:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:29:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:29:58,929 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:29:58,929 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:29:58,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:29:58 BoogieIcfgContainer [2020-10-26 20:29:58,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:29:58,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:29:58,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:29:58,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:29:58,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:29:56" (1/3) ... [2020-10-26 20:29:58,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57996c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:29:58, skipping insertion in model container [2020-10-26 20:29:58,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:29:57" (2/3) ... [2020-10-26 20:29:58,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57996c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:29:58, skipping insertion in model container [2020-10-26 20:29:58,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:29:58" (3/3) ... [2020-10-26 20:29:58,940 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label04.c [2020-10-26 20:29:58,953 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:29:58,958 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:29:58,972 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:29:59,007 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:29:59,007 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:29:59,007 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:29:59,008 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:29:59,008 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:29:59,008 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:29:59,008 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:29:59,008 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:29:59,031 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:29:59,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-26 20:29:59,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:29:59,043 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] [2020-10-26 20:29:59,044 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:29:59,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:29:59,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1973097139, now seen corresponding path program 1 times [2020-10-26 20:29:59,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:29:59,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381121847] [2020-10-26 20:29:59,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:29:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:29:59,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:29:59,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:01,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:01,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-26 20:30:01,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:30:01,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1765 [2020-10-26 20:30:01,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:30:01,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:30:01,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-26 20:30:01,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:30:01,404 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:30:01,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:30:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:01,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:01,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:01,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:30:01,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:01,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:30:01,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:01,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:30:01,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:01,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:30:01,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:01,521 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 20:30:01,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381121847] [2020-10-26 20:30:01,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:30:01,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:30:01,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913148264] [2020-10-26 20:30:01,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:30:01,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:30:01,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:30:01,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:30:01,559 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-26 20:30:03,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:30:03,218 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-26 20:30:03,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:30:03,220 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2020-10-26 20:30:03,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:30:03,236 INFO L225 Difference]: With dead ends: 562 [2020-10-26 20:30:03,237 INFO L226 Difference]: Without dead ends: 287 [2020-10-26 20:30:03,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:30:03,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-26 20:30:03,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-26 20:30:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-26 20:30:03,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 409 transitions. [2020-10-26 20:30:03,325 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 409 transitions. Word has length 103 [2020-10-26 20:30:03,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:30:03,326 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 409 transitions. [2020-10-26 20:30:03,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:30:03,327 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 409 transitions. [2020-10-26 20:30:03,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-26 20:30:03,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:30:03,334 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-26 20:30:03,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:30:03,335 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:30:03,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:30:03,336 INFO L82 PathProgramCache]: Analyzing trace with hash 380444978, now seen corresponding path program 1 times [2020-10-26 20:30:03,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:30:03,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988219015] [2020-10-26 20:30:03,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:30:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:03,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:03,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:05,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:06,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:06,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-26 20:30:06,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:30:06,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3228 [2020-10-26 20:30:06,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:06,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:30:06,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:30:06,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:30:06,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:06,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:30:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:06,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:06,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:06,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:30:06,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:06,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:30:06,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:30:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:06,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:30:06,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:30:06,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:30:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:06,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:06,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:06,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:30:06,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:06,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:30:06,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:30:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:30:06,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:30:06,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988219015] [2020-10-26 20:30:06,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:30:06,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:30:06,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119877223] [2020-10-26 20:30:06,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:30:06,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:30:06,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:30:06,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:30:06,883 INFO L87 Difference]: Start difference. First operand 281 states and 409 transitions. Second operand 7 states. [2020-10-26 20:30:08,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:30:08,498 INFO L93 Difference]: Finished difference Result 856 states and 1274 transitions. [2020-10-26 20:30:08,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:30:08,499 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-10-26 20:30:08,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:30:08,507 INFO L225 Difference]: With dead ends: 856 [2020-10-26 20:30:08,507 INFO L226 Difference]: Without dead ends: 581 [2020-10-26 20:30:08,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:30:08,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-10-26 20:30:08,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 559. [2020-10-26 20:30:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-26 20:30:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 784 transitions. [2020-10-26 20:30:08,586 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 784 transitions. Word has length 112 [2020-10-26 20:30:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:30:08,587 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 784 transitions. [2020-10-26 20:30:08,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:30:08,587 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 784 transitions. [2020-10-26 20:30:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-26 20:30:08,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:30:08,593 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:30:08,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:30:08,593 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:30:08,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:30:08,594 INFO L82 PathProgramCache]: Analyzing trace with hash 2097948003, now seen corresponding path program 1 times [2020-10-26 20:30:08,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:30:08,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582026570] [2020-10-26 20:30:08,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:30:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:08,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:08,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:09,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:12,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:13,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:13,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-26 20:30:13,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:30:13,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-26 20:30:13,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:30:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:30:13,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:30:13,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:30:13,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:30:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:13,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:13,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:13,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:30:13,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:13,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:30:13,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:13,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:30:13,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:13,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:30:13,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:13,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:30:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:13,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:13,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:13,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:13,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:30:13,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:30:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:30:13,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:30:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:13,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:30:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:13,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:13,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:13,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:30:13,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:13,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 20:30:13,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:13,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:13,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:30:13,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:30:14,160 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:30:14,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1582026570] [2020-10-26 20:30:14,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:30:14,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:30:14,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855496355] [2020-10-26 20:30:14,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:30:14,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:30:14,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:30:14,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:30:14,166 INFO L87 Difference]: Start difference. First operand 559 states and 784 transitions. Second operand 8 states. [2020-10-26 20:30:15,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:30:15,693 INFO L93 Difference]: Finished difference Result 1559 states and 2217 transitions. [2020-10-26 20:30:15,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:30:15,693 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-10-26 20:30:15,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:30:15,700 INFO L225 Difference]: With dead ends: 1559 [2020-10-26 20:30:15,701 INFO L226 Difference]: Without dead ends: 1006 [2020-10-26 20:30:15,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:30:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2020-10-26 20:30:15,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 853. [2020-10-26 20:30:15,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2020-10-26 20:30:15,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1140 transitions. [2020-10-26 20:30:15,749 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1140 transitions. Word has length 133 [2020-10-26 20:30:15,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:30:15,750 INFO L481 AbstractCegarLoop]: Abstraction has 853 states and 1140 transitions. [2020-10-26 20:30:15,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:30:15,750 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1140 transitions. [2020-10-26 20:30:15,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-26 20:30:15,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:30:15,757 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:30:15,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:30:15,758 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:30:15,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:30:15,758 INFO L82 PathProgramCache]: Analyzing trace with hash 32715265, now seen corresponding path program 1 times [2020-10-26 20:30:15,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:30:15,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299914537] [2020-10-26 20:30:15,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:30:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:15,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:15,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:15,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:18,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:20,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:20,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:20,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-26 20:30:20,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:30:20,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-26 20:30:20,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:20,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:30:20,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:30:20,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:30:20,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:20,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:30:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:20,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:20,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:20,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:30:20,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:20,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:30:20,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:20,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:20,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:20,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:20,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:30:20,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:30:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:20,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:20,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:20,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:30:20,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:20,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:30:20,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:20,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:30:20,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:20,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:30:20,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:20,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:30:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:20,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:21,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:21,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:21,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:30:21,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:30:21,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:30:21,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:21,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:21,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:21,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:30:21,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:21,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:30:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:21,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:21,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:21,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:30:21,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:21,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:30:21,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:21,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:21,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:21,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:30:21,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 20:30:21,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299914537] [2020-10-26 20:30:21,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:30:21,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 20:30:21,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98873138] [2020-10-26 20:30:21,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 20:30:21,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:30:21,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 20:30:21,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:30:21,130 INFO L87 Difference]: Start difference. First operand 853 states and 1140 transitions. Second operand 9 states. [2020-10-26 20:30:23,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:30:23,606 INFO L93 Difference]: Finished difference Result 2872 states and 4127 transitions. [2020-10-26 20:30:23,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:30:23,606 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 141 [2020-10-26 20:30:23,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:30:23,625 INFO L225 Difference]: With dead ends: 2872 [2020-10-26 20:30:23,625 INFO L226 Difference]: Without dead ends: 2025 [2020-10-26 20:30:23,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:30:23,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2020-10-26 20:30:23,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 1866. [2020-10-26 20:30:23,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1866 states. [2020-10-26 20:30:23,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2561 transitions. [2020-10-26 20:30:23,752 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2561 transitions. Word has length 141 [2020-10-26 20:30:23,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:30:23,752 INFO L481 AbstractCegarLoop]: Abstraction has 1866 states and 2561 transitions. [2020-10-26 20:30:23,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 20:30:23,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2561 transitions. [2020-10-26 20:30:23,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-26 20:30:23,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:30:23,763 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:30:23,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:30:23,763 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:30:23,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:30:23,764 INFO L82 PathProgramCache]: Analyzing trace with hash -552613391, now seen corresponding path program 1 times [2020-10-26 20:30:23,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:30:23,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871825872] [2020-10-26 20:30:23,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:30:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:23,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:23,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:23,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:25,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:28,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:28,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-26 20:30:28,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:30:28,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-26 20:30:28,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:30:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:30:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:30:28,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:30:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:28,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:28,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:28,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:30:28,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:28,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:30:28,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:28,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:30:28,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:30:28,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:28,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:30:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:28,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:28,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:28,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:28,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:30:28,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:30:28,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:30:28,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:30:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:29,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:30:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:29,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:29,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:29,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:30:29,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:29,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:30:29,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:29,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:29,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:29,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:30:29,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:29,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-26 20:30:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:29,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:29,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:29,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 20:30:29,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:30:29,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:30:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:29,143 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 50 proven. 23 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-26 20:30:29,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871825872] [2020-10-26 20:30:29,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:30:29,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:30:29,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544100117] [2020-10-26 20:30:29,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:30:29,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:30:29,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:30:29,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:30:29,146 INFO L87 Difference]: Start difference. First operand 1866 states and 2561 transitions. Second operand 7 states. [2020-10-26 20:30:30,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:30:30,545 INFO L93 Difference]: Finished difference Result 4012 states and 5518 transitions. [2020-10-26 20:30:30,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:30:30,546 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-10-26 20:30:30,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:30:30,561 INFO L225 Difference]: With dead ends: 4012 [2020-10-26 20:30:30,561 INFO L226 Difference]: Without dead ends: 2156 [2020-10-26 20:30:30,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:30:30,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2020-10-26 20:30:30,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2009. [2020-10-26 20:30:30,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2009 states. [2020-10-26 20:30:30,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 2661 transitions. [2020-10-26 20:30:30,668 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 2661 transitions. Word has length 157 [2020-10-26 20:30:30,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:30:30,669 INFO L481 AbstractCegarLoop]: Abstraction has 2009 states and 2661 transitions. [2020-10-26 20:30:30,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:30:30,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 2661 transitions. [2020-10-26 20:30:30,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-26 20:30:30,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:30:30,677 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:30:30,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:30:30,678 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:30:30,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:30:30,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1663801631, now seen corresponding path program 1 times [2020-10-26 20:30:30,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:30:30,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973484677] [2020-10-26 20:30:30,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:30:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:30,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:30,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:30,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:31,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:35,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:35,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-26 20:30:35,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:30:35,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-26 20:30:35,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:30:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:30:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:30:35,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:35,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:30:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:35,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:35,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:35,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:30:35,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:35,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:30:35,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:30:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:30:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:35,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:30:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:35,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:35,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:35,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:30:35,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:35,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:30:35,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:30:35,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:35,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-26 20:30:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:35,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:35,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:35,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:30:35,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:35,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:30:35,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:35,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:35,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:30:35,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:35,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:30:35,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 20:30:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:35,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:35,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:35,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:30:35,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:35,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:30:35,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-26 20:30:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:30:36,046 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 45 proven. 20 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-26 20:30:36,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973484677] [2020-10-26 20:30:36,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:30:36,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:30:36,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425403811] [2020-10-26 20:30:36,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:30:36,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:30:36,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:30:36,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:30:36,050 INFO L87 Difference]: Start difference. First operand 2009 states and 2661 transitions. Second operand 7 states. [2020-10-26 20:30:37,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:30:37,513 INFO L93 Difference]: Finished difference Result 4953 states and 6523 transitions. [2020-10-26 20:30:37,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:30:37,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-10-26 20:30:37,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:30:37,527 INFO L225 Difference]: With dead ends: 4953 [2020-10-26 20:30:37,527 INFO L226 Difference]: Without dead ends: 2664 [2020-10-26 20:30:37,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:30:37,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2020-10-26 20:30:37,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2106. [2020-10-26 20:30:37,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2106 states. [2020-10-26 20:30:37,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 2467 transitions. [2020-10-26 20:30:37,620 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 2467 transitions. Word has length 157 [2020-10-26 20:30:37,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:30:37,621 INFO L481 AbstractCegarLoop]: Abstraction has 2106 states and 2467 transitions. [2020-10-26 20:30:37,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:30:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 2467 transitions. [2020-10-26 20:30:37,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-26 20:30:37,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:30:37,651 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, 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 20:30:37,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:30:37,651 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:30:37,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:30:37,652 INFO L82 PathProgramCache]: Analyzing trace with hash -449938576, now seen corresponding path program 1 times [2020-10-26 20:30:37,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:30:37,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994211249] [2020-10-26 20:30:37,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:30:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:37,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:37,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:37,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:37,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:42,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:42,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-26 20:30:42,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:30:42,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-26 20:30:42,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:42,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:30:42,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:30:42,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:30:42,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:42,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:30:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:42,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:42,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:42,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:30:42,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:42,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:30:42,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:42,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:30:42,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:30:42,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:30:42,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:30:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:42,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:42,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:42,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:42,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:30:42,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:30:42,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:30:42,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:30:42,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:42,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:30:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:42,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:42,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:42,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:30:42,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:42,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:30:42,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:42,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:42,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:30:42,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:42,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:30:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:42,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:42,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:42,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:30:42,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:42,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:30:42,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:30:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:42,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:42,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-26 20:30:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:42,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:42,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:42,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 20:30:42,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:42,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:30:42,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:42,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:42,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:30:42,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:42,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 72 proven. 29 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-26 20:30:43,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994211249] [2020-10-26 20:30:43,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:30:43,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:30:43,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935841678] [2020-10-26 20:30:43,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:30:43,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:30:43,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:30:43,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:30:43,050 INFO L87 Difference]: Start difference. First operand 2106 states and 2467 transitions. Second operand 8 states. [2020-10-26 20:30:44,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:30:44,422 INFO L93 Difference]: Finished difference Result 4915 states and 5886 transitions. [2020-10-26 20:30:44,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:30:44,423 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2020-10-26 20:30:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:30:44,439 INFO L225 Difference]: With dead ends: 4915 [2020-10-26 20:30:44,440 INFO L226 Difference]: Without dead ends: 2815 [2020-10-26 20:30:44,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:30:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2020-10-26 20:30:44,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2670. [2020-10-26 20:30:44,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2670 states. [2020-10-26 20:30:44,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3129 transitions. [2020-10-26 20:30:44,539 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3129 transitions. Word has length 178 [2020-10-26 20:30:44,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:30:44,540 INFO L481 AbstractCegarLoop]: Abstraction has 2670 states and 3129 transitions. [2020-10-26 20:30:44,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:30:44,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3129 transitions. [2020-10-26 20:30:44,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-26 20:30:44,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:30:44,548 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:30:44,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:30:44,548 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:30:44,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:30:44,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1950662555, now seen corresponding path program 1 times [2020-10-26 20:30:44,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:30:44,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470777045] [2020-10-26 20:30:44,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:30:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:44,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:44,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:44,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:44,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:49,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:49,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-26 20:30:49,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:30:49,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-26 20:30:49,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:30:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:30:49,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:49,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:30:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:49,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:49,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:49,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:30:49,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:49,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:30:49,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:49,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:49,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:30:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:49,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:49,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:49,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:30:49,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:49,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:30:49,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:49,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:30:49,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:49,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:30:49,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:49,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:30:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:49,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:49,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:49,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:30:49,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:49,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 20:30:49,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:30:49,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:49,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:30:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:49,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:49,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:49,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:30:49,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:49,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:30:49,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:30:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:49,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:49,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:30:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:49,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:49,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:49,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:30:49,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:49,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:30:49,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:49,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:49,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:30:49,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:49,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:49,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 20:30:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:49,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:49,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:49,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 20:30:49,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:49,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:30:49,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:30:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:49,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:49,967 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 110 proven. 60 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-26 20:30:49,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470777045] [2020-10-26 20:30:49,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:30:49,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:30:49,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981897743] [2020-10-26 20:30:49,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:30:49,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:30:49,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:30:49,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:30:49,970 INFO L87 Difference]: Start difference. First operand 2670 states and 3129 transitions. Second operand 7 states. [2020-10-26 20:30:51,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:30:51,426 INFO L93 Difference]: Finished difference Result 6178 states and 7310 transitions. [2020-10-26 20:30:51,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:30:51,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-10-26 20:30:51,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:30:51,445 INFO L225 Difference]: With dead ends: 6178 [2020-10-26 20:30:51,445 INFO L226 Difference]: Without dead ends: 3514 [2020-10-26 20:30:51,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:30:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2020-10-26 20:30:51,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3232. [2020-10-26 20:30:51,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3232 states. [2020-10-26 20:30:51,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 3735 transitions. [2020-10-26 20:30:51,564 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 3735 transitions. Word has length 211 [2020-10-26 20:30:51,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:30:51,566 INFO L481 AbstractCegarLoop]: Abstraction has 3232 states and 3735 transitions. [2020-10-26 20:30:51,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:30:51,566 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 3735 transitions. [2020-10-26 20:30:51,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-26 20:30:51,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:30:51,579 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2020-10-26 20:30:51,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:30:51,579 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:30:51,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:30:51,580 INFO L82 PathProgramCache]: Analyzing trace with hash 2011876226, now seen corresponding path program 1 times [2020-10-26 20:30:51,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:30:51,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098133196] [2020-10-26 20:30:51,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:30:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:51,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:51,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:51,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:56,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:56,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-26 20:30:56,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:30:56,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-26 20:30:56,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:56,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:56,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:30:56,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:30:56,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:56,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:30:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:56,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:56,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:56,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:30:56,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:30:56,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:56,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:30:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:56,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:56,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:56,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:30:56,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:56,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:30:56,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:56,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:56,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:30:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:56,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:56,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:56,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:30:56,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:56,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:30:56,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:56,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:30:56,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:30:56,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:30:56,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:56,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:30:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:56,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:56,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:56,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:30:56,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:56,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:30:56,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:56,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:30:56,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:30:56,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:30:56,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:56,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:30:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:56,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:56,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:56,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:30:56,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:56,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:30:56,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:56,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:56,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:30:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:56,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:56,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-26 20:30:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:56,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:56,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:30:56,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 20:30:56,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:30:56,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:30:56,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:30:56,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:30:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:30:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:30:56,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:30:57,124 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 171 proven. 26 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-26 20:30:57,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098133196] [2020-10-26 20:30:57,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:30:57,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:30:57,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810632828] [2020-10-26 20:30:57,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:30:57,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:30:57,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:30:57,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:30:57,133 INFO L87 Difference]: Start difference. First operand 3232 states and 3735 transitions. Second operand 7 states. [2020-10-26 20:30:58,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:30:58,731 INFO L93 Difference]: Finished difference Result 7435 states and 8660 transitions. [2020-10-26 20:30:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:30:58,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 244 [2020-10-26 20:30:58,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:30:58,755 INFO L225 Difference]: With dead ends: 7435 [2020-10-26 20:30:58,755 INFO L226 Difference]: Without dead ends: 3794 [2020-10-26 20:30:58,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:30:58,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3794 states. [2020-10-26 20:30:58,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3794 to 3639. [2020-10-26 20:30:58,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3639 states. [2020-10-26 20:30:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 4142 transitions. [2020-10-26 20:30:58,872 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 4142 transitions. Word has length 244 [2020-10-26 20:30:58,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:30:58,873 INFO L481 AbstractCegarLoop]: Abstraction has 3639 states and 4142 transitions. [2020-10-26 20:30:58,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:30:58,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 4142 transitions. [2020-10-26 20:30:58,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-26 20:30:58,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:30:58,885 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1] [2020-10-26 20:30:58,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:30:58,885 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:30:58,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:30:58,886 INFO L82 PathProgramCache]: Analyzing trace with hash 102180927, now seen corresponding path program 1 times [2020-10-26 20:30:58,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:30:58,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381202116] [2020-10-26 20:30:58,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:30:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:30:58,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:58,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:30:59,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:03,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:03,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-10-26 20:31:03,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:31:03,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-26 20:31:03,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:31:03,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:31:03,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:04,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:04,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:04,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:04,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:04,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:04,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:31:04,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:04,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:04,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:31:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:04,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:04,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:04,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:31:04,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:04,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:31:04,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:04,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:31:04,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:04,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:31:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:04,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:04,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:04,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:31:04,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:04,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-26 20:31:04,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:31:04,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:04,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:31:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:04,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:04,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:04,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:31:04,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:04,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:31:04,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:31:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:04,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:04,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:31:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:04,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:04,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:04,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:31:04,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:04,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:31:04,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:04,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:04,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:31:04,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:04,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:04,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:31:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:04,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:04,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:04,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:31:04,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:04,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:31:04,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:04,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:04,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:31:04,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:04,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:04,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-26 20:31:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:04,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:04,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:04,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 20:31:04,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:04,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:31:04,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:31:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:04,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:04,411 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 208 proven. 70 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-10-26 20:31:04,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381202116] [2020-10-26 20:31:04,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:31:04,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:31:04,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175604523] [2020-10-26 20:31:04,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:31:04,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:04,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:31:04,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:31:04,414 INFO L87 Difference]: Start difference. First operand 3639 states and 4142 transitions. Second operand 7 states. [2020-10-26 20:31:06,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:31:06,004 INFO L93 Difference]: Finished difference Result 7415 states and 8471 transitions. [2020-10-26 20:31:06,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:31:06,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 275 [2020-10-26 20:31:06,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:31:06,021 INFO L225 Difference]: With dead ends: 7415 [2020-10-26 20:31:06,021 INFO L226 Difference]: Without dead ends: 3917 [2020-10-26 20:31:06,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 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 20:31:06,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3917 states. [2020-10-26 20:31:06,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3917 to 3911. [2020-10-26 20:31:06,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3911 states. [2020-10-26 20:31:06,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 4373 transitions. [2020-10-26 20:31:06,136 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 4373 transitions. Word has length 275 [2020-10-26 20:31:06,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:31:06,136 INFO L481 AbstractCegarLoop]: Abstraction has 3911 states and 4373 transitions. [2020-10-26 20:31:06,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:31:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 4373 transitions. [2020-10-26 20:31:06,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-26 20:31:06,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:06,149 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:31:06,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:31:06,149 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:06,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:06,150 INFO L82 PathProgramCache]: Analyzing trace with hash 317866227, now seen corresponding path program 1 times [2020-10-26 20:31:06,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:06,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89516049] [2020-10-26 20:31:06,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:06,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:06,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:07,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:08,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:08,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:09,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:09,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 319 [2020-10-26 20:31:09,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:31:09,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3387 [2020-10-26 20:31:09,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:09,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:31:09,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:31:09,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-26 20:31:09,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:09,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:09,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:09,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:09,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:09,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:09,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:31:09,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:09,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:09,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:09,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:09,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:09,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:31:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:09,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:09,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:09,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:31:09,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:09,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:31:09,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:09,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:09,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:31:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:09,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:09,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:09,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:31:09,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:09,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:31:09,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:09,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:09,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:09,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:09,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:09,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:31:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:09,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:09,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:09,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:31:09,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:09,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:31:09,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:09,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:09,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:31:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:09,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:09,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:09,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:31:09,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:09,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:31:09,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:09,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:31:09,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:09,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:31:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:09,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:09,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:09,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:09,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:31:09,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:31:09,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:31:09,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 20:31:09,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:09,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 20:31:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:09,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:09,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:10,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:10,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 20:31:10,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:31:10,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-26 20:31:10,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:10,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:10,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:10,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-26 20:31:10,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 321 proven. 26 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-10-26 20:31:10,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89516049] [2020-10-26 20:31:10,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:31:10,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:31:10,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130633514] [2020-10-26 20:31:10,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:31:10,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:10,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:31:10,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:31:10,103 INFO L87 Difference]: Start difference. First operand 3911 states and 4373 transitions. Second operand 8 states. [2020-10-26 20:31:11,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:31:11,371 INFO L93 Difference]: Finished difference Result 3955 states and 4512 transitions. [2020-10-26 20:31:11,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:31:11,372 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 297 [2020-10-26 20:31:11,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:31:11,374 INFO L225 Difference]: With dead ends: 3955 [2020-10-26 20:31:11,374 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:31:11,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:31:11,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:31:11,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:31:11,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:31:11,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:31:11,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 297 [2020-10-26 20:31:11,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:31:11,387 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:31:11,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:31:11,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:31:11,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:31:11,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:31:11,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:31:12,822 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 174 [2020-10-26 20:31:13,161 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 174 [2020-10-26 20:31:13,275 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 33 [2020-10-26 20:31:13,534 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 39 [2020-10-26 20:31:14,868 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 216 DAG size of output: 61 [2020-10-26 20:31:15,551 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 52 [2020-10-26 20:31:16,289 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 52 [2020-10-26 20:31:16,294 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:31:16,294 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:31:16,294 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:31:16,294 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:31:16,294 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:31:16,295 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 20:31:16,295 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:31:16,295 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,296 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,296 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,296 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,296 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,296 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,296 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:31:16,296 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:31:16,297 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:31:16,297 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:31:16,297 INFO L270 CegarLoopResult]: At program point L466(line 466) the Hoare annotation is: (let ((.cse0 (not (= |old(~a8~0)| 13))) (.cse1 (not (<= |old(~a21~0)| 0))) (.cse5 (not (<= |old(~a16~0)| 5))) (.cse3 (not (= 15 |old(~a8~0)|))) (.cse6 (not (= |old(~a20~0)| 1))) (.cse2 (not (= 6 |old(~a16~0)|))) (.cse4 (not (= |old(~a21~0)| 1))) (.cse7 (not (= |old(~a7~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5) (or .cse5 .cse4) (or .cse6 .cse3 .cse4) (or (not (= |old(~a17~0)| 1)) .cse6 .cse4 .cse7) (or .cse2 .cse4 .cse7))) [2020-10-26 20:31:16,297 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:31:16,297 INFO L274 CegarLoopResult]: For program point L466-1(line 466) no Hoare annotation was computed. [2020-10-26 20:31:16,298 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:31:16,298 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:31:16,298 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:31:16,298 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:31:16,298 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:31:16,298 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:31:16,298 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,298 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,298 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,298 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,299 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,299 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,299 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:31:16,299 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:31:16,299 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:31:16,299 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:31:16,299 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:31:16,299 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:31:16,299 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:31:16,299 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:31:16,300 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,301 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,302 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,302 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,302 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,302 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:31:16,302 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:31:16,302 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:31:16,302 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:31:16,302 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:31:16,302 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:31:16,302 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:31:16,303 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:31:16,303 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:31:16,303 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,303 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,303 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,303 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,303 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,303 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:31:16,303 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:31:16,303 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:31:16,303 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,304 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:31:16,305 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:31:16,306 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:31:16,307 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:31:16,307 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:31:16,307 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:31:16,307 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,307 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,307 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,307 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,307 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,307 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:31:16,307 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:31:16,307 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:31:16,308 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:31:16,308 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:31:16,308 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:31:16,308 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:31:16,308 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:31:16,308 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,308 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,308 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse12 (= ~a7~0 |old(~a7~0)|)) (.cse11 (= ~a17~0 |old(~a17~0)|)) (.cse13 (= ~a21~0 1)) (.cse16 (= ~a20~0 |old(~a20~0)|)) (.cse14 (= ~a16~0 |old(~a16~0)|)) (.cse15 (= ~a8~0 |old(~a8~0)|))) (let ((.cse9 (not (<= |old(~a16~0)| 5))) (.cse4 (and .cse12 .cse11 .cse13 .cse16 .cse14 .cse15)) (.cse6 (not (= |old(~a8~0)| 13))) (.cse7 (not (<= |old(~a21~0)| 0))) (.cse8 (and .cse12 .cse11 (= ~a21~0 |old(~a21~0)|) .cse16 .cse14 (= ~a8~0 13))) (.cse1 (not (= 6 |old(~a16~0)|))) (.cse0 (and .cse11 .cse13 .cse16 .cse14 .cse15 (= ~a7~0 0))) (.cse3 (not (= |old(~a7~0)| 0))) (.cse10 (not (= |old(~a20~0)| 1))) (.cse5 (not (= 15 |old(~a8~0)|))) (.cse2 (not (= |old(~a21~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5 .cse2) (or .cse6 .cse7 .cse8 .cse9) (or .cse9 .cse4 .cse2) (or .cse6 .cse7 .cse8 .cse1) (or (not (= |old(~a17~0)| 1)) .cse0 .cse10 .cse2 .cse3) (or .cse10 (and .cse11 .cse12 .cse13 .cse14 .cse15 (= ~a20~0 1)) .cse5 .cse2)))) [2020-10-26 20:31:16,309 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,309 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,309 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,309 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:31:16,309 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:31:16,309 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:31:16,309 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:31:16,309 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:31:16,309 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:31:16,309 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:31:16,309 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:31:16,310 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:31:16,310 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:31:16,310 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:31:16,310 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,310 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,310 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,310 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,310 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:31:16,310 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,310 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,310 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:31:16,311 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:31:16,312 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:31:16,313 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:31:16,313 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:31:16,313 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:31:16,313 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:31:16,313 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:31:16,313 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:31:16,313 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:31:16,313 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:31:16,313 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:31:16,313 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (= ~a20~0 1) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:31:16,313 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:31:16,313 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:31:16,314 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a7~0 0)) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:31:16,314 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:31:16,314 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse3 (<= ~a21~0 0)) (.cse4 (<= ~a16~0 5)) (.cse2 (= ~a8~0 13)) (.cse7 (= ~a7~0 0)) (.cse0 (= ~a16~0 6)) (.cse5 (= ~a21~0 1)) (.cse1 (= 15 |old(~a8~0)|)) (.cse6 (= ~a8~0 |old(~a8~0)|)) (.cse8 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and (= ~a17~0 |old(~a17~0)|) .cse5 (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) .cse6 .cse7) (and .cse5 .cse4 .cse1) (not (= |old(~a20~0)| 1)) (and .cse5 .cse1 .cse2 .cse8 .cse7 (= ~a17~0 1)) (not (= |old(~a21~0)| 1)) (and .cse5 .cse0 .cse1 .cse7) (not (= |old(~a17~0)| 1)) (and .cse5 .cse0 .cse1 .cse6) (and .cse5 .cse1 .cse6 .cse8) (not (<= |old(~a16~0)| 5)) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:31:16,314 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:31:16,314 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:31:16,314 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse3 (<= ~a21~0 0)) (.cse4 (<= ~a16~0 5)) (.cse2 (= ~a8~0 13)) (.cse7 (= ~a7~0 0)) (.cse0 (= ~a16~0 6)) (.cse5 (= ~a21~0 1)) (.cse1 (= 15 |old(~a8~0)|)) (.cse6 (= ~a8~0 |old(~a8~0)|)) (.cse8 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and (= ~a17~0 |old(~a17~0)|) .cse5 (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) .cse6 .cse7) (and .cse5 .cse4 .cse1) (not (= |old(~a20~0)| 1)) (and .cse5 .cse1 .cse2 .cse8 .cse7 (= ~a17~0 1)) (not (= |old(~a21~0)| 1)) (and .cse5 .cse0 .cse1 .cse7) (not (= |old(~a17~0)| 1)) (and .cse5 .cse0 .cse1 .cse6) (and .cse5 .cse1 .cse6 .cse8) (not (<= |old(~a16~0)| 5)) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:31:16,314 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:31:16,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:31:16 BoogieIcfgContainer [2020-10-26 20:31:16,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:31:16,339 INFO L168 Benchmark]: Toolchain (without parser) took 79667.30 ms. Allocated memory was 167.8 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 142.2 MB in the beginning and 661.5 MB in the end (delta: -519.3 MB). Peak memory consumption was 758.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:31:16,340 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 105.2 MB in the beginning and 105.1 MB in the end (delta: 131.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:31:16,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.86 ms. Allocated memory is still 167.8 MB. Free memory was 141.5 MB in the beginning and 143.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 27.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:31:16,341 INFO L168 Benchmark]: Boogie Preprocessor took 122.55 ms. Allocated memory is still 167.8 MB. Free memory was 143.8 MB in the beginning and 139.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:31:16,342 INFO L168 Benchmark]: RCFGBuilder took 1408.13 ms. Allocated memory is still 167.8 MB. Free memory was 139.0 MB in the beginning and 76.7 MB in the end (delta: 62.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:31:16,342 INFO L168 Benchmark]: TraceAbstraction took 77404.17 ms. Allocated memory was 167.8 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 76.2 MB in the beginning and 661.5 MB in the end (delta: -585.3 MB). Peak memory consumption was 691.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:31:16,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 105.2 MB in the beginning and 105.1 MB in the end (delta: 131.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 720.86 ms. Allocated memory is still 167.8 MB. Free memory was 141.5 MB in the beginning and 143.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 27.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 122.55 ms. Allocated memory is still 167.8 MB. Free memory was 143.8 MB in the beginning and 139.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1408.13 ms. Allocated memory is still 167.8 MB. Free memory was 139.0 MB in the beginning and 76.7 MB in the end (delta: 62.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 77404.17 ms. Allocated memory was 167.8 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 76.2 MB in the beginning and 661.5 MB in the end (delta: -585.3 MB). Peak memory consumption was 691.8 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: ((((((((((((((a16 == 6 && 15 == \old(a8)) && a8 == 13) && a21 <= 0) || (((a16 <= 5 && 15 == \old(a8)) && a8 == 13) && a21 <= 0)) || (((((a17 == \old(a17) && a21 == 1) && a20 == \old(a20)) && a16 == \old(a16)) && a8 == \old(a8)) && a7 == 0)) || ((a21 == 1 && a16 <= 5) && 15 == \old(a8))) || !(\old(a20) == 1)) || (((((a21 == 1 && 15 == \old(a8)) && a8 == 13) && a20 == 1) && a7 == 0) && a17 == 1)) || !(\old(a21) == 1)) || (((a21 == 1 && a16 == 6) && 15 == \old(a8)) && a7 == 0)) || !(\old(a17) == 1)) || (((a21 == 1 && a16 == 6) && 15 == \old(a8)) && a8 == \old(a8))) || (((a21 == 1 && 15 == \old(a8)) && a8 == \old(a8)) && a20 == 1)) || !(\old(a16) <= 5)) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 72.3s, OverallIterations: 11, TraceHistogramMax: 7, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 308 SDtfs, 4367 SDslu, 408 SDs, 0 SdLazy, 9060 SolverSat, 1604 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 231 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3911occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 1633 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 385 PreInvPairs, 475 NumberOfFragments, 731 HoareAnnotationTreeSize, 385 FomulaSimplifications, 91548 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 11028 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 52.2s InterpolantComputationTime, 2008 NumberOfCodeBlocks, 2008 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1997 ConstructedInterpolants, 0 QuantifiedInterpolants, 1241554 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 1671/1935 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...