/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_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:33:24,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:33:24,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:33:24,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:33:24,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:33:24,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:33:24,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:33:24,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:33:24,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:33:24,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:33:24,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:33:24,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:33:24,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:33:24,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:33:24,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:33:24,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:33:24,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:33:24,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:33:24,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:33:24,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:33:24,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:33:24,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:33:24,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:33:24,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:33:24,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:33:24,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:33:24,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:33:24,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:33:24,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:33:24,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:33:24,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:33:24,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:33:24,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:33:24,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:33:24,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:33:24,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:33:24,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:33:24,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:33:24,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:33:24,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:33:24,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:33:24,977 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 20:33:25,004 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:33:25,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:33:25,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:33:25,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:33:25,006 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:33:25,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:33:25,007 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:33:25,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:33:25,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:33:25,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:33:25,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:33:25,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:33:25,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:33:25,009 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:33:25,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:33:25,009 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:33:25,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:33:25,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:33:25,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:33:25,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:33:25,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:33:25,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:33:25,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:33:25,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:33:25,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:33:25,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:33:25,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:33:25,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:33:25,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:33:25,013 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:33:25,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:33:25,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:33:25,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:33:25,453 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:33:25,454 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:33:25,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label25.c [2020-10-26 20:33:25,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2492fef12/d38124a86c844104bb1ceb70d1347f0f/FLAG61506d8d8 [2020-10-26 20:33:26,353 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:33:26,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label25.c [2020-10-26 20:33:26,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2492fef12/d38124a86c844104bb1ceb70d1347f0f/FLAG61506d8d8 [2020-10-26 20:33:26,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2492fef12/d38124a86c844104bb1ceb70d1347f0f [2020-10-26 20:33:26,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:33:26,569 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:33:26,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:26,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:33:26,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:33:26,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:26" (1/1) ... [2020-10-26 20:33:26,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6e5ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:26, skipping insertion in model container [2020-10-26 20:33:26,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:26" (1/1) ... [2020-10-26 20:33:26,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:33:26,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:33:27,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:27,187 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:33:27,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:27,390 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:33:27,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:27 WrapperNode [2020-10-26 20:33:27,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:27,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:33:27,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:33:27,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:33:27,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:27" (1/1) ... [2020-10-26 20:33:27,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:27" (1/1) ... [2020-10-26 20:33:27,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:27" (1/1) ... [2020-10-26 20:33:27,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:27" (1/1) ... [2020-10-26 20:33:27,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:27" (1/1) ... [2020-10-26 20:33:27,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:27" (1/1) ... [2020-10-26 20:33:27,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:27" (1/1) ... [2020-10-26 20:33:27,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:33:27,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:33:27,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:33:27,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:33:27,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:27" (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 20:33:27,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:33:27,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:33:27,644 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:33:27,644 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:33:27,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:33:27,645 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:33:27,646 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:33:27,646 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:33:27,646 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:33:27,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:33:27,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:33:27,647 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:33:27,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:33:27,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:33:27,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:33:27,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:33:27,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:33:27,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:33:27,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:33:29,016 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:33:29,016 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:33:29,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:29 BoogieIcfgContainer [2020-10-26 20:33:29,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:33:29,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:33:29,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:33:29,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:33:29,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:33:26" (1/3) ... [2020-10-26 20:33:29,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778019c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:29, skipping insertion in model container [2020-10-26 20:33:29,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:27" (2/3) ... [2020-10-26 20:33:29,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778019c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:29, skipping insertion in model container [2020-10-26 20:33:29,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:29" (3/3) ... [2020-10-26 20:33:29,028 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label25.c [2020-10-26 20:33:29,040 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:33:29,046 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:33:29,059 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:33:29,089 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:33:29,089 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:33:29,089 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:33:29,089 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:33:29,089 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:33:29,089 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:33:29,090 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:33:29,090 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:33:29,113 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:33:29,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-26 20:33:29,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:29,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:29,128 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:29,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:29,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1641458487, now seen corresponding path program 1 times [2020-10-26 20:33:29,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:29,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861068899] [2020-10-26 20:33:29,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:29,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:29,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:31,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-26 20:33:31,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1924 [2020-10-26 20:33:31,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:31,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:33:31,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:31,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:33:31,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:33:32,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:32,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:32,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:32,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:32,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:32,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:33:32,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:32,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:32,876 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 20:33:32,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861068899] [2020-10-26 20:33:32,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:33:32,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:33:32,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86360562] [2020-10-26 20:33:32,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:33:32,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:32,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:33:32,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:32,907 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:33:33,143 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-26 20:33:33,340 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-26 20:33:33,530 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-26 20:33:33,755 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-26 20:33:34,299 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-10-26 20:33:34,787 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118 [2020-10-26 20:33:35,475 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2020-10-26 20:33:36,289 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2020-10-26 20:33:36,840 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-26 20:33:38,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:38,292 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:33:38,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:33:38,296 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 126 [2020-10-26 20:33:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:38,317 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:33:38,317 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:33:38,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:33:38,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:33:38,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:33:38,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:33:38,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:33:38,436 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 126 [2020-10-26 20:33:38,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:38,437 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:33:38,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:33:38,437 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:33:38,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-26 20:33:38,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:38,452 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:38,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:33:38,453 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:38,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:38,455 INFO L82 PathProgramCache]: Analyzing trace with hash -245797017, now seen corresponding path program 1 times [2020-10-26 20:33:38,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:38,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275159260] [2020-10-26 20:33:38,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:38,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:38,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:40,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:40,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-26 20:33:40,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:40,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2254 [2020-10-26 20:33:40,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:40,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:40,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:40,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-26 20:33:40,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:33:40,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:40,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:40,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:40,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:40,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:40,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:33:40,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:40,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:41,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:41,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:41,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:41,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:41,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:33:41,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:33:41,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:33:41,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275159260] [2020-10-26 20:33:41,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:41,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:33:41,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641052600] [2020-10-26 20:33:41,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:33:41,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:41,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:33:41,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:33:41,130 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-26 20:33:42,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:42,494 INFO L93 Difference]: Finished difference Result 485 states and 694 transitions. [2020-10-26 20:33:42,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:33:42,498 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2020-10-26 20:33:42,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:42,507 INFO L225 Difference]: With dead ends: 485 [2020-10-26 20:33:42,507 INFO L226 Difference]: Without dead ends: 345 [2020-10-26 20:33:42,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:42,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-10-26 20:33:42,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2020-10-26 20:33:42,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-10-26 20:33:42,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 466 transitions. [2020-10-26 20:33:42,563 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 466 transitions. Word has length 134 [2020-10-26 20:33:42,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:42,568 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 466 transitions. [2020-10-26 20:33:42,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:33:42,569 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 466 transitions. [2020-10-26 20:33:42,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-26 20:33:42,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:42,574 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:42,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:33:42,575 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:42,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:42,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1638043642, now seen corresponding path program 1 times [2020-10-26 20:33:42,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:42,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644643317] [2020-10-26 20:33:42,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:42,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:42,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:43,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:43,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-26 20:33:43,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:43,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-26 20:33:43,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:33:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-26 20:33:43,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:43,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:43,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:43,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:43,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:43,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:43,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:43,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:43,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:43,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:43,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:43,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:43,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:43,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:43,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:43,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:33:43,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:43,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:33:43,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:43,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:43,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:43,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:33:43,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:33:43,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644643317] [2020-10-26 20:33:43,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:43,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:33:43,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630004348] [2020-10-26 20:33:43,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:33:43,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:43,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:33:43,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:33:43,391 INFO L87 Difference]: Start difference. First operand 343 states and 466 transitions. Second operand 6 states. [2020-10-26 20:33:43,526 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:33:45,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:45,833 INFO L93 Difference]: Finished difference Result 1172 states and 1683 transitions. [2020-10-26 20:33:45,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:33:45,834 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2020-10-26 20:33:45,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:45,842 INFO L225 Difference]: With dead ends: 1172 [2020-10-26 20:33:45,842 INFO L226 Difference]: Without dead ends: 895 [2020-10-26 20:33:45,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:45,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2020-10-26 20:33:45,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2020-10-26 20:33:45,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-26 20:33:45,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1212 transitions. [2020-10-26 20:33:45,889 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1212 transitions. Word has length 137 [2020-10-26 20:33:45,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:45,889 INFO L481 AbstractCegarLoop]: Abstraction has 895 states and 1212 transitions. [2020-10-26 20:33:45,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:33:45,889 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1212 transitions. [2020-10-26 20:33:45,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-26 20:33:45,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:45,894 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, 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 20:33:45,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:33:45,894 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:45,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:45,895 INFO L82 PathProgramCache]: Analyzing trace with hash 615922713, now seen corresponding path program 1 times [2020-10-26 20:33:45,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:45,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088991610] [2020-10-26 20:33:45,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:45,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:45,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:50,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:50,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-26 20:33:50,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:50,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-26 20:33:50,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:50,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:50,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:50,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:33:50,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:51,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:51,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:51,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:51,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:51,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:33:51,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:51,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:51,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:51,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:51,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:33:51,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:51,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:33:51,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:51,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:33:51,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-26 20:33:51,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:33:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:51,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:51,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:33:51,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:51,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 20:33:51,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:51,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:51,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:51,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:33:51,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:33:51,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088991610] [2020-10-26 20:33:51,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:51,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:51,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327304521] [2020-10-26 20:33:51,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:51,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:51,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:51,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:51,370 INFO L87 Difference]: Start difference. First operand 895 states and 1212 transitions. Second operand 8 states. [2020-10-26 20:33:53,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:53,359 INFO L93 Difference]: Finished difference Result 2326 states and 3256 transitions. [2020-10-26 20:33:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:33:53,359 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 156 [2020-10-26 20:33:53,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:53,372 INFO L225 Difference]: With dead ends: 2326 [2020-10-26 20:33:53,372 INFO L226 Difference]: Without dead ends: 1497 [2020-10-26 20:33:53,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:33:53,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2020-10-26 20:33:53,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1471. [2020-10-26 20:33:53,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1471 states. [2020-10-26 20:33:53,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1899 transitions. [2020-10-26 20:33:53,470 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1899 transitions. Word has length 156 [2020-10-26 20:33:53,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:53,471 INFO L481 AbstractCegarLoop]: Abstraction has 1471 states and 1899 transitions. [2020-10-26 20:33:53,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:53,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1899 transitions. [2020-10-26 20:33:53,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-26 20:33:53,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:53,479 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:33:53,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:33:53,480 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:53,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:53,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1523893921, now seen corresponding path program 1 times [2020-10-26 20:33:53,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:53,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110723656] [2020-10-26 20:33:53,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:53,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:53,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:53,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:53,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:53,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:58,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:58,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-26 20:33:58,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:58,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-26 20:33:58,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:33:58,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:58,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:58,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:58,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:58,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:58,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:58,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:58,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:58,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:58,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:58,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:58,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:58,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:58,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:58,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:58,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:58,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:58,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:33:58,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:33:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:58,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:58,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:58,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:58,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:58,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:58,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:33:58,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:58,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:58,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:58,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:58,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:58,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:33:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:58,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:58,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:58,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:58,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:58,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:33:58,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 20:33:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:58,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-26 20:33:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:58,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:58,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:58,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:33:58,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:58,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:33:58,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:58,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:58,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-26 20:33:58,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:58,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 47 proven. 22 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-26 20:33:58,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110723656] [2020-10-26 20:33:58,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:58,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:33:58,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911497356] [2020-10-26 20:33:58,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:58,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:58,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:58,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:58,970 INFO L87 Difference]: Start difference. First operand 1471 states and 1899 transitions. Second operand 8 states. [2020-10-26 20:33:59,110 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:34:01,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:01,111 INFO L93 Difference]: Finished difference Result 3339 states and 4422 transitions. [2020-10-26 20:34:01,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:34:01,112 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 176 [2020-10-26 20:34:01,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:01,122 INFO L225 Difference]: With dead ends: 3339 [2020-10-26 20:34:01,122 INFO L226 Difference]: Without dead ends: 1791 [2020-10-26 20:34:01,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:34:01,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2020-10-26 20:34:01,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1759. [2020-10-26 20:34:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1759 states. [2020-10-26 20:34:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 2231 transitions. [2020-10-26 20:34:01,198 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 2231 transitions. Word has length 176 [2020-10-26 20:34:01,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:01,199 INFO L481 AbstractCegarLoop]: Abstraction has 1759 states and 2231 transitions. [2020-10-26 20:34:01,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:01,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 2231 transitions. [2020-10-26 20:34:01,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-26 20:34:01,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:01,207 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:01,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:34:01,207 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:01,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:01,208 INFO L82 PathProgramCache]: Analyzing trace with hash -428044160, now seen corresponding path program 1 times [2020-10-26 20:34:01,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:01,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368244865] [2020-10-26 20:34:01,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:01,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:01,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:01,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:01,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:04,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-26 20:34:06,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:06,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-26 20:34:06,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:34:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:34:06,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:06,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:06,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:06,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:06,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:06,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:06,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:06,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:06,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:06,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:34:06,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:06,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:34:06,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:06,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:34:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:06,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:34:06,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:06,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 20:34:06,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:06,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:34:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:34:06,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:34:06,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-26 20:34:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:06,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,690 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 57 proven. 19 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-26 20:34:06,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368244865] [2020-10-26 20:34:06,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:06,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:06,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490938390] [2020-10-26 20:34:06,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:06,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:06,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:06,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:06,694 INFO L87 Difference]: Start difference. First operand 1759 states and 2231 transitions. Second operand 7 states. [2020-10-26 20:34:07,092 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:34:07,858 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:34:08,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:08,897 INFO L93 Difference]: Finished difference Result 3881 states and 5024 transitions. [2020-10-26 20:34:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:34:08,897 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2020-10-26 20:34:08,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:08,908 INFO L225 Difference]: With dead ends: 3881 [2020-10-26 20:34:08,908 INFO L226 Difference]: Without dead ends: 1769 [2020-10-26 20:34:08,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:08,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2020-10-26 20:34:08,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1749. [2020-10-26 20:34:08,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1749 states. [2020-10-26 20:34:08,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2044 transitions. [2020-10-26 20:34:08,982 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2044 transitions. Word has length 179 [2020-10-26 20:34:08,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:08,982 INFO L481 AbstractCegarLoop]: Abstraction has 1749 states and 2044 transitions. [2020-10-26 20:34:08,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2044 transitions. [2020-10-26 20:34:08,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-26 20:34:08,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:08,990 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:08,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:34:08,990 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:08,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:08,991 INFO L82 PathProgramCache]: Analyzing trace with hash -491896558, now seen corresponding path program 2 times [2020-10-26 20:34:08,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:08,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481721853] [2020-10-26 20:34:08,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:09,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:14,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:14,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-26 20:34:14,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:34:14,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-26 20:34:14,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:34:14,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:14,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:14,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:14,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:14,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:14,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:14,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:34:14,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:14,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:14,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:14,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:14,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:14,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:14,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:14,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:14,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:14,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:14,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:14,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:14,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:14,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:14,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:14,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:14,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:34:14,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:34:14,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:34:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:14,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:34:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:14,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:14,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:14,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:14,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:14,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:14,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:14,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:14,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:14,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:14,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:14,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:34:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:14,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:14,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:14,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:14,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:14,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:34:14,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 20:34:14,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:14,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:14,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-26 20:34:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:14,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:14,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:14,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:34:14,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:14,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:14,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-26 20:34:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:14,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 71 proven. 35 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-10-26 20:34:14,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481721853] [2020-10-26 20:34:14,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:14,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:14,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130406286] [2020-10-26 20:34:14,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:14,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:14,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:14,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:14,470 INFO L87 Difference]: Start difference. First operand 1749 states and 2044 transitions. Second operand 7 states. [2020-10-26 20:34:15,661 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:34:16,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:16,133 INFO L93 Difference]: Finished difference Result 3859 states and 4649 transitions. [2020-10-26 20:34:16,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:16,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-10-26 20:34:16,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:16,150 INFO L225 Difference]: With dead ends: 3859 [2020-10-26 20:34:16,150 INFO L226 Difference]: Without dead ends: 2176 [2020-10-26 20:34:16,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2020-10-26 20:34:16,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 2170. [2020-10-26 20:34:16,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2020-10-26 20:34:16,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 2526 transitions. [2020-10-26 20:34:16,233 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 2526 transitions. Word has length 195 [2020-10-26 20:34:16,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:16,233 INFO L481 AbstractCegarLoop]: Abstraction has 2170 states and 2526 transitions. [2020-10-26 20:34:16,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:16,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 2526 transitions. [2020-10-26 20:34:16,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-26 20:34:16,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:16,242 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:16,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:34:16,242 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:16,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:16,243 INFO L82 PathProgramCache]: Analyzing trace with hash -119006794, now seen corresponding path program 1 times [2020-10-26 20:34:16,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:16,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674024672] [2020-10-26 20:34:16,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:16,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:21,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:21,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-26 20:34:21,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:21,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-26 20:34:21,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:34:21,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:21,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:21,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:21,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:21,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:21,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:21,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:34:21,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:21,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:21,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:21,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:21,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:21,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:21,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:21,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:21,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:21,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:21,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:21,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-26 20:34:21,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:21,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:21,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:21,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:34:21,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:21,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:21,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:21,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:21,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:21,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:21,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:34:21,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:21,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:21,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:21,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:21,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:21,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:34:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:21,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:21,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:21,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:21,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:21,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:34:21,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:21,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:21,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-26 20:34:21,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:21,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 93 proven. 56 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:34:21,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674024672] [2020-10-26 20:34:21,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:21,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:21,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733103052] [2020-10-26 20:34:21,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:21,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:21,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:21,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:21,971 INFO L87 Difference]: Start difference. First operand 2170 states and 2526 transitions. Second operand 8 states. [2020-10-26 20:34:22,111 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:34:22,783 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:34:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:23,825 INFO L93 Difference]: Finished difference Result 5098 states and 6085 transitions. [2020-10-26 20:34:23,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:23,827 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 223 [2020-10-26 20:34:23,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:23,842 INFO L225 Difference]: With dead ends: 5098 [2020-10-26 20:34:23,843 INFO L226 Difference]: Without dead ends: 2994 [2020-10-26 20:34:23,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:34:23,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2020-10-26 20:34:23,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 2855. [2020-10-26 20:34:23,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-10-26 20:34:23,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3286 transitions. [2020-10-26 20:34:23,938 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3286 transitions. Word has length 223 [2020-10-26 20:34:23,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:23,938 INFO L481 AbstractCegarLoop]: Abstraction has 2855 states and 3286 transitions. [2020-10-26 20:34:23,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:23,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3286 transitions. [2020-10-26 20:34:23,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-26 20:34:23,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:23,949 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:34:23,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:34:23,949 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:23,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:23,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1388642019, now seen corresponding path program 1 times [2020-10-26 20:34:23,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:23,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641879916] [2020-10-26 20:34:23,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-26 20:34:28,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:28,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-26 20:34:28,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-26 20:34:28,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:29,168 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:29,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:29,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:29,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:29,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:29,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:29,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:29,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:29,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:29,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:29,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:29,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:29,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:34:29,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:29,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:29,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:29,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:34:29,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:29,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-26 20:34:29,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:34:29,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:29,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:34:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:29,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:29,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:29,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:34:29,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:29,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:29,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:29,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 20:34:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:29,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:29,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:34:29,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-26 20:34:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:29,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 120 proven. 62 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-26 20:34:29,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641879916] [2020-10-26 20:34:29,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:29,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 20:34:29,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469812299] [2020-10-26 20:34:29,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 20:34:29,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:29,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 20:34:29,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:34:29,653 INFO L87 Difference]: Start difference. First operand 2855 states and 3286 transitions. Second operand 9 states. [2020-10-26 20:34:31,489 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:34:31,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:31,518 INFO L93 Difference]: Finished difference Result 5958 states and 6942 transitions. [2020-10-26 20:34:31,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:34:31,518 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-10-26 20:34:31,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:31,535 INFO L225 Difference]: With dead ends: 5958 [2020-10-26 20:34:31,536 INFO L226 Difference]: Without dead ends: 3169 [2020-10-26 20:34:31,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-26 20:34:31,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2020-10-26 20:34:31,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3137. [2020-10-26 20:34:31,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3137 states. [2020-10-26 20:34:31,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 3547 transitions. [2020-10-26 20:34:31,646 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 3547 transitions. Word has length 240 [2020-10-26 20:34:31,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:31,647 INFO L481 AbstractCegarLoop]: Abstraction has 3137 states and 3547 transitions. [2020-10-26 20:34:31,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 20:34:31,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 3547 transitions. [2020-10-26 20:34:31,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-10-26 20:34:31,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:31,659 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-26 20:34:31,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:34:31,659 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:31,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:31,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1974070082, now seen corresponding path program 1 times [2020-10-26 20:34:31,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:31,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301489144] [2020-10-26 20:34:31,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:31,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-26 20:34:36,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:36,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-26 20:34:36,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:36,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:34:36,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:34:36,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:36,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:34:36,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:36,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:36,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:36,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:36,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:34:36,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:36,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:34:36,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:37,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:37,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:37,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:37,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-26 20:34:37,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:34:37,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:37,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:34:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:37,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:37,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:37,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:37,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:37,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:37,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:37,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:37,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:34:37,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:37,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:37,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:34:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:37,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:37,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:37,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:37,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:37,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:34:37,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:37,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:37,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:37,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:34:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:37,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:37,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:37,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:37,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:37,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:34:37,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-26 20:34:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:37,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:37,237 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 196 proven. 62 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-26 20:34:37,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301489144] [2020-10-26 20:34:37,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:37,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:37,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079233430] [2020-10-26 20:34:37,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:37,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:37,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:37,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:37,240 INFO L87 Difference]: Start difference. First operand 3137 states and 3547 transitions. Second operand 7 states. [2020-10-26 20:34:38,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:38,920 INFO L93 Difference]: Finished difference Result 6226 states and 7032 transitions. [2020-10-26 20:34:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:38,922 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 287 [2020-10-26 20:34:38,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:38,936 INFO L225 Difference]: With dead ends: 6226 [2020-10-26 20:34:38,936 INFO L226 Difference]: Without dead ends: 3155 [2020-10-26 20:34:38,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:34:38,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2020-10-26 20:34:39,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 3147. [2020-10-26 20:34:39,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3147 states. [2020-10-26 20:34:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3147 states to 3147 states and 3464 transitions. [2020-10-26 20:34:39,030 INFO L78 Accepts]: Start accepts. Automaton has 3147 states and 3464 transitions. Word has length 287 [2020-10-26 20:34:39,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:39,030 INFO L481 AbstractCegarLoop]: Abstraction has 3147 states and 3464 transitions. [2020-10-26 20:34:39,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:39,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3147 states and 3464 transitions. [2020-10-26 20:34:39,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-26 20:34:39,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:39,042 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-26 20:34:39,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:34:39,042 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:39,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:39,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1488053591, now seen corresponding path program 1 times [2020-10-26 20:34:39,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:39,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018143589] [2020-10-26 20:34:39,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:40,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-26 20:34:44,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:44,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-26 20:34:44,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-26 20:34:44,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:44,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:44,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:44,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:34:44,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:44,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:44,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:34:44,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:44,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-26 20:34:44,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:34:44,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:34:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:44,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 20:34:44,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:34:44,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 20:34:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:44,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:44,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:34:44,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-26 20:34:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:44,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:44,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:44,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 20:34:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:44,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:44,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-26 20:34:44,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,653 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 194 proven. 120 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-26 20:34:44,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1018143589] [2020-10-26 20:34:44,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:44,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:44,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394616479] [2020-10-26 20:34:44,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:44,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:44,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:44,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:44,655 INFO L87 Difference]: Start difference. First operand 3147 states and 3464 transitions. Second operand 8 states. [2020-10-26 20:34:44,796 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:34:46,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:46,136 INFO L93 Difference]: Finished difference Result 6230 states and 6859 transitions. [2020-10-26 20:34:46,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:34:46,137 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 304 [2020-10-26 20:34:46,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:46,150 INFO L225 Difference]: With dead ends: 6230 [2020-10-26 20:34:46,150 INFO L226 Difference]: Without dead ends: 3149 [2020-10-26 20:34:46,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:46,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2020-10-26 20:34:46,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 3147. [2020-10-26 20:34:46,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3147 states. [2020-10-26 20:34:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3147 states to 3147 states and 3444 transitions. [2020-10-26 20:34:46,236 INFO L78 Accepts]: Start accepts. Automaton has 3147 states and 3444 transitions. Word has length 304 [2020-10-26 20:34:46,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:46,236 INFO L481 AbstractCegarLoop]: Abstraction has 3147 states and 3444 transitions. [2020-10-26 20:34:46,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:46,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3147 states and 3444 transitions. [2020-10-26 20:34:46,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-26 20:34:46,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:46,248 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:46,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:34:46,249 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:46,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:46,249 INFO L82 PathProgramCache]: Analyzing trace with hash 247567862, now seen corresponding path program 1 times [2020-10-26 20:34:46,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:46,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201703099] [2020-10-26 20:34:46,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:46,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:46,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-26 20:34:49,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:49,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3066 [2020-10-26 20:34:49,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:49,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:34:49,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:34:49,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:49,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:49,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:49,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:49,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:49,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:49,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:49,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:49,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:49,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:49,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:49,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:49,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:49,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:49,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:49,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:49,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:49,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:49,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:49,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:34:49,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:49,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:49,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:49,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:49,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:49,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:49,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:34:49,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:34:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:49,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:49,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:49,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:49,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:49,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:34:49,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:49,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:49,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:49,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:34:49,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:49,814 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 281 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-26 20:34:49,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201703099] [2020-10-26 20:34:49,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:49,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:49,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991091347] [2020-10-26 20:34:49,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:49,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:49,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:49,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:49,819 INFO L87 Difference]: Start difference. First operand 3147 states and 3444 transitions. Second operand 8 states. [2020-10-26 20:34:51,052 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:34:51,436 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:34:52,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:52,457 INFO L93 Difference]: Finished difference Result 6070 states and 6668 transitions. [2020-10-26 20:34:52,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:34:52,460 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 309 [2020-10-26 20:34:52,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:52,461 INFO L225 Difference]: With dead ends: 6070 [2020-10-26 20:34:52,462 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:34:52,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:34:52,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:34:52,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:34:52,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:34:52,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:34:52,473 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 309 [2020-10-26 20:34:52,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:52,473 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:34:52,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:52,474 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:34:52,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:34:52,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:34:52,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:34:53,046 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 188 [2020-10-26 20:34:53,212 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 179 [2020-10-26 20:34:53,539 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 43 [2020-10-26 20:34:55,104 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 210 DAG size of output: 63 [2020-10-26 20:34:55,550 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 56 [2020-10-26 20:34:56,120 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 56 [2020-10-26 20:34:56,414 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 43 [2020-10-26 20:34:56,419 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:34:56,419 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:34:56,420 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:34:56,420 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:34:56,420 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:56,420 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 20:34:56,420 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:34:56,421 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,422 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,423 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:34:56,423 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:34:56,423 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:34:56,426 INFO L270 CegarLoopResult]: At program point L535(line 535) the Hoare annotation is: (let ((.cse3 (= 6 |old(~a16~0)|))) (let ((.cse0 (not (= |old(~a7~0)| 0))) (.cse1 (not .cse3)) (.cse2 (not (<= |old(~a8~0)| 13)))) (and (or (not (<= |old(~a16~0)| 5)) .cse0) (or .cse1 .cse0) (or .cse1 .cse2) (or (not (<= 1 |old(~a17~0)|)) .cse2 (not (= |old(~a20~0)| 1)) (not (<= |old(~a17~0)| 1))) (or (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a7~0)|)) (not (<= 1 |old(~a21~0)|)) .cse3 (not (<= |old(~a7~0)| 1))) (or .cse2 (not (<= |old(~a16~0)| 4)))))) [2020-10-26 20:34:56,427 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:34:56,427 INFO L274 CegarLoopResult]: For program point L535-1(line 535) no Hoare annotation was computed. [2020-10-26 20:34:56,427 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:34:56,427 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:34:56,427 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:34:56,427 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:34:56,427 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:34:56,427 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,427 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,427 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,428 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,428 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,428 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,428 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:34:56,428 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:34:56,429 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:34:56,429 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:34:56,429 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:34:56,429 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:34:56,429 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:34:56,429 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:34:56,429 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:34:56,429 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:34:56,430 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:34:56,430 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:34:56,430 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:34:56,430 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:34:56,432 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:34:56,432 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,432 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,432 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,432 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,434 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,434 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:34:56,434 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:34:56,434 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:34:56,434 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:34:56,435 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:34:56,435 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:34:56,435 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:34:56,435 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:34:56,435 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:34:56,435 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,435 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,435 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,435 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,435 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,436 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:34:56,436 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:34:56,436 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:34:56,436 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:34:56,436 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:34:56,436 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:34:56,436 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:34:56,436 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:34:56,436 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:34:56,436 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:34:56,437 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,438 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,438 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:34:56,439 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:34:56,439 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:34:56,439 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:34:56,439 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:34:56,439 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:34:56,439 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,439 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,439 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,439 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,439 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:34:56,440 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,440 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:34:56,440 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:34:56,440 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:34:56,440 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:34:56,440 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:34:56,440 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:34:56,440 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:34:56,440 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:34:56,440 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:34:56,441 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:34:56,441 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:34:56,441 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:34:56,441 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:34:56,441 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,441 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,442 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,443 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse7 (= 6 |old(~a16~0)|)) (.cse3 (= ~a17~0 |old(~a17~0)|)) (.cse10 (= ~a21~0 |old(~a21~0)|)) (.cse4 (= ~a20~0 |old(~a20~0)|)) (.cse5 (= ~a16~0 |old(~a16~0)|)) (.cse6 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (and .cse3 .cse10 .cse4 .cse5 .cse6 (= ~a7~0 0))) (.cse1 (not (= |old(~a7~0)| 0))) (.cse2 (not .cse7)) (.cse8 (not (<= |old(~a8~0)| 13))) (.cse9 (and (= ~a7~0 |old(~a7~0)|) .cse3 .cse10 .cse4 .cse5 .cse6))) (and (or (not (<= |old(~a16~0)| 5)) .cse0 .cse1) (or .cse0 .cse2 .cse1) (or (not (<= |old(~a21~0)| 1)) (and (<= 1 ~a7~0) .cse3 .cse4 .cse5 .cse6 (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a7~0 1)) (not (<= 1 |old(~a7~0)|)) (not (<= 1 |old(~a21~0)|)) .cse7 (not (<= |old(~a7~0)| 1))) (or .cse2 .cse8 .cse9) (or (not (<= 1 |old(~a17~0)|)) .cse8 (not (= |old(~a20~0)| 1)) .cse9 (not (<= |old(~a17~0)| 1))) (or .cse8 (not (<= |old(~a16~0)| 4)) .cse9)))) [2020-10-26 20:34:56,443 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,443 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,443 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,443 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:34:56,443 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:34:56,443 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:34:56,443 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:34:56,443 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:34:56,444 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:34:56,445 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:34:56,446 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:34:56,447 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:34:56,447 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:34:56,447 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:34:56,447 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:34:56,447 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:34:56,447 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:34:56,447 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:34:56,447 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:34:56,447 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:34:56,447 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:56,447 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a20~0 1) (= 5 ~a16~0) (<= ~a8~0 15) (= ~a7~0 0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-26 20:34:56,448 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:34:56,448 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:56,448 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a8~0)| 15)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= 5 ~a16~0) (<= ~a8~0 15) (<= 15 ~a8~0) (= ~a7~0 0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:34:56,448 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:56,448 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse1 (= ~a7~0 0)) (.cse0 (= ~a16~0 6)) (.cse2 (<= ~a8~0 13))) (or (and (<= 1 ~a7~0) (not .cse0) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a7~0 1)) (not (<= |old(~a8~0)| 15)) (and .cse0 .cse1) (and (= ~a20~0 1) (= ~a17~0 1) .cse2) (and (<= ~a16~0 5) .cse1) (not (= |old(~a20~0)| 1)) (and (<= ~a16~0 4) .cse2) (not (= |old(~a21~0)| 1)) (and .cse0 .cse2) (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:34:56,448 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:34:56,448 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:34:56,449 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse1 (= ~a7~0 0)) (.cse0 (= ~a16~0 6)) (.cse2 (<= ~a8~0 13))) (or (and (<= 1 ~a7~0) (not .cse0) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a7~0 1)) (not (<= |old(~a8~0)| 15)) (and .cse0 .cse1) (and (= ~a20~0 1) (= ~a17~0 1) .cse2) (and (<= ~a16~0 5) .cse1) (not (= |old(~a20~0)| 1)) (and (<= ~a16~0 4) .cse2) (not (= |old(~a21~0)| 1)) (and .cse0 .cse2) (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:34:56,449 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:56,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:34:56 BoogieIcfgContainer [2020-10-26 20:34:56,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:34:56,479 INFO L168 Benchmark]: Toolchain (without parser) took 89914.42 ms. Allocated memory was 159.4 MB in the beginning and 1.0 GB in the end (delta: 882.9 MB). Free memory was 132.7 MB in the beginning and 664.5 MB in the end (delta: -531.7 MB). Peak memory consumption was 621.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:56,480 INFO L168 Benchmark]: CDTParser took 1.50 ms. Allocated memory is still 159.4 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:34:56,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 818.62 ms. Allocated memory is still 159.4 MB. Free memory was 132.1 MB in the beginning and 136.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:56,488 INFO L168 Benchmark]: Boogie Preprocessor took 154.64 ms. Allocated memory is still 159.4 MB. Free memory was 136.5 MB in the beginning and 131.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:56,492 INFO L168 Benchmark]: RCFGBuilder took 1470.30 ms. Allocated memory is still 159.4 MB. Free memory was 131.2 MB in the beginning and 115.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 84.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:56,495 INFO L168 Benchmark]: TraceAbstraction took 87456.07 ms. Allocated memory was 159.4 MB in the beginning and 1.0 GB in the end (delta: 882.9 MB). Free memory was 114.6 MB in the beginning and 664.5 MB in the end (delta: -549.9 MB). Peak memory consumption was 603.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:56,503 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50 ms. Allocated memory is still 159.4 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 818.62 ms. Allocated memory is still 159.4 MB. Free memory was 132.1 MB in the beginning and 136.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 154.64 ms. Allocated memory is still 159.4 MB. Free memory was 136.5 MB in the beginning and 131.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1470.30 ms. Allocated memory is still 159.4 MB. Free memory was 131.2 MB in the beginning and 115.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 84.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 87456.07 ms. Allocated memory was 159.4 MB in the beginning and 1.0 GB in the end (delta: 882.9 MB). Free memory was 114.6 MB in the beginning and 664.5 MB in the end (delta: -549.9 MB). Peak memory consumption was 603.0 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: ((((((((((((((((1 <= a7 && !(a16 == 6)) && a21 <= 1) && 1 <= a21) && a7 <= 1) || !(\old(a8) <= 15)) || (a16 == 6 && a7 == 0)) || ((a20 == 1 && a17 == 1) && a8 <= 13)) || (a16 <= 5 && a7 == 0)) || !(\old(a20) == 1)) || (a16 <= 4 && a8 <= 13)) || !(\old(a21) == 1)) || (a16 == 6 && a8 <= 13)) || !(\old(a17) == 1)) || !(15 <= \old(a8))) || !(5 == \old(a16))) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 83.3s, OverallIterations: 12, TraceHistogramMax: 7, AutomataDifference: 26.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 319 SDtfs, 5538 SDslu, 474 SDs, 0 SdLazy, 10631 SolverSat, 1449 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 140 SyntacticMatches, 2 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3147occurred 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: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 267 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 360 PreInvPairs, 412 NumberOfFragments, 614 HoareAnnotationTreeSize, 360 FomulaSimplifications, 5292 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6155 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 53.5s InterpolantComputationTime, 2466 NumberOfCodeBlocks, 2466 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2454 ConstructedInterpolants, 0 QuantifiedInterpolants, 2093446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 1569/1951 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...