/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_label29.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:33:49,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:33:49,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:33:49,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:33:49,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:33:49,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:33:49,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:33:49,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:33:49,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:33:49,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:33:49,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:33:49,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:33:49,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:33:49,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:33:49,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:33:49,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:33:49,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:33:49,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:33:49,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:33:49,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:33:49,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:33:49,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:33:49,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:33:49,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:33:49,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:33:49,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:33:49,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:33:49,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:33:49,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:33:49,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:33:49,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:33:49,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:33:49,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:33:49,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:33:49,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:33:49,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:33:49,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:33:49,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:33:49,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:33:49,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:33:49,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:33:49,455 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 20:33:49,499 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:33:49,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:33:49,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:33:49,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:33:49,504 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:33:49,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:33:49,504 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:33:49,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:33:49,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:33:49,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:33:49,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:33:49,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:33:49,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:33:49,506 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:33:49,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:33:49,507 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:33:49,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:33:49,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:33:49,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:33:49,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:33:49,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:33:49,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:33:49,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:33:49,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:33:49,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:33:49,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:33:49,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:33:49,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:33:49,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:33:49,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:33:49,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:33:49,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:33:49,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:33:49,982 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:33:49,983 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:33:49,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label29.c [2020-10-26 20:33:50,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cf95b986/0c40ed7d288f4aa29cb69cfbb09a9c4d/FLAGdb52cc305 [2020-10-26 20:33:50,874 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:33:50,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label29.c [2020-10-26 20:33:50,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cf95b986/0c40ed7d288f4aa29cb69cfbb09a9c4d/FLAGdb52cc305 [2020-10-26 20:33:51,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cf95b986/0c40ed7d288f4aa29cb69cfbb09a9c4d [2020-10-26 20:33:51,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:33:51,110 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:33:51,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:51,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:33:51,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:33:51,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:51" (1/1) ... [2020-10-26 20:33:51,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc9a94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:51, skipping insertion in model container [2020-10-26 20:33:51,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:51" (1/1) ... [2020-10-26 20:33:51,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:33:51,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:33:51,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:51,585 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:33:51,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:51,809 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:33:51,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:51 WrapperNode [2020-10-26 20:33:51,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:51,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:33:51,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:33:51,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:33:51,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:51" (1/1) ... [2020-10-26 20:33:51,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:51" (1/1) ... [2020-10-26 20:33:51,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:51" (1/1) ... [2020-10-26 20:33:51,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:51" (1/1) ... [2020-10-26 20:33:51,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:51" (1/1) ... [2020-10-26 20:33:51,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:51" (1/1) ... [2020-10-26 20:33:51,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:51" (1/1) ... [2020-10-26 20:33:51,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:33:51,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:33:51,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:33:51,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:33:51,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:51" (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 20:33:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:33:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:33:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:33:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:33:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:33:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:33:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:33:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:33:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:33:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:33:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:33:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:33:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:33:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:33:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:33:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:33:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:33:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:33:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:33:53,177 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:33:53,177 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:33:53,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:53 BoogieIcfgContainer [2020-10-26 20:33:53,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:33:53,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:33:53,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:33:53,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:33:53,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:33:51" (1/3) ... [2020-10-26 20:33:53,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569ca3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:53, skipping insertion in model container [2020-10-26 20:33:53,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:51" (2/3) ... [2020-10-26 20:33:53,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569ca3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:53, skipping insertion in model container [2020-10-26 20:33:53,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:53" (3/3) ... [2020-10-26 20:33:53,188 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label29.c [2020-10-26 20:33:53,199 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:33:53,205 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:33:53,218 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:33:53,251 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:33:53,252 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:33:53,252 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:33:53,252 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:33:53,252 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:33:53,252 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:33:53,252 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:33:53,252 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:33:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:33:53,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-26 20:33:53,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:53,287 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] [2020-10-26 20:33:53,287 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:53,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:53,293 INFO L82 PathProgramCache]: Analyzing trace with hash -405331135, now seen corresponding path program 1 times [2020-10-26 20:33:53,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:53,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962635468] [2020-10-26 20:33:53,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:53,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:53,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:55,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:55,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 20:33:55,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:55,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2170 [2020-10-26 20:33:55,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:55,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:33:55,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:55,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:33:55,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:33:56,532 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-26 20:33:56,739 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-10-26 20:33:56,935 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 46 [2020-10-26 20:33:57,129 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 44 [2020-10-26 20:33:57,315 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 41 [2020-10-26 20:33:57,503 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 38 [2020-10-26 20:33:57,660 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 33 [2020-10-26 20:33:57,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:57,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:57,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:57,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:57,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:57,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:33:57,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:57,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:58,005 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 20:33:58,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962635468] [2020-10-26 20:33:58,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:33:58,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:33:58,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615632628] [2020-10-26 20:33:58,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:33:58,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:58,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:33:58,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:58,032 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:33:58,259 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-26 20:33:58,486 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-26 20:33:58,701 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-26 20:33:58,998 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-26 20:33:59,556 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 143 [2020-10-26 20:34:00,098 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 140 [2020-10-26 20:34:00,863 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 137 [2020-10-26 20:34:01,709 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 134 [2020-10-26 20:34:02,318 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 129 [2020-10-26 20:34:03,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:03,732 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:34:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:34:03,737 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 108 [2020-10-26 20:34:03,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:03,762 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:34:03,762 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:34:03,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:34:03,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:34:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:34:03,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:34:03,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:34:03,873 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 108 [2020-10-26 20:34:03,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:03,874 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:34:03,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:34:03,875 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:34:03,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-26 20:34:03,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:03,886 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] [2020-10-26 20:34:03,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:34:03,896 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:03,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:03,897 INFO L82 PathProgramCache]: Analyzing trace with hash 940394847, now seen corresponding path program 1 times [2020-10-26 20:34:03,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:03,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243225923] [2020-10-26 20:34:03,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:03,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:04,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:04,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:05,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:05,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 20:34:05,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:05,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1984 [2020-10-26 20:34:05,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-26 20:34:05,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:06,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:06,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:34:06,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:06,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:06,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:06,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:06,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:06,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,231 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 20:34:06,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243225923] [2020-10-26 20:34:06,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:06,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:34:06,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406515957] [2020-10-26 20:34:06,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:34:06,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:06,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:34:06,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:06,235 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-26 20:34:07,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:07,631 INFO L93 Difference]: Finished difference Result 485 states and 694 transitions. [2020-10-26 20:34:07,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:34:07,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2020-10-26 20:34:07,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:07,636 INFO L225 Difference]: With dead ends: 485 [2020-10-26 20:34:07,636 INFO L226 Difference]: Without dead ends: 345 [2020-10-26 20:34:07,637 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 20:34:07,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-10-26 20:34:07,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2020-10-26 20:34:07,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-10-26 20:34:07,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 466 transitions. [2020-10-26 20:34:07,687 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 466 transitions. Word has length 116 [2020-10-26 20:34:07,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:07,689 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 466 transitions. [2020-10-26 20:34:07,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:34:07,689 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 466 transitions. [2020-10-26 20:34:07,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-26 20:34:07,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:07,694 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] [2020-10-26 20:34:07,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:34:07,694 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:07,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:07,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1716419650, now seen corresponding path program 1 times [2020-10-26 20:34:07,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:07,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177136813] [2020-10-26 20:34:07,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:08,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-26 20:34:08,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 620 [2020-10-26 20:34:08,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 20:34:08,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:08,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:08,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:08,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:08,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:08,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:34:08,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:08,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:08,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:08,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:08,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:08,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:08,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:34:08,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:08,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:08,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:34:08,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177136813] [2020-10-26 20:34:08,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:08,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:34:08,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584853756] [2020-10-26 20:34:08,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:34:08,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:08,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:34:08,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:08,708 INFO L87 Difference]: Start difference. First operand 343 states and 466 transitions. Second operand 6 states. [2020-10-26 20:34:10,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:10,121 INFO L93 Difference]: Finished difference Result 902 states and 1274 transitions. [2020-10-26 20:34:10,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:34:10,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2020-10-26 20:34:10,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:10,127 INFO L225 Difference]: With dead ends: 902 [2020-10-26 20:34:10,127 INFO L226 Difference]: Without dead ends: 625 [2020-10-26 20:34:10,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 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 20:34:10,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-10-26 20:34:10,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 621. [2020-10-26 20:34:10,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-10-26 20:34:10,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 823 transitions. [2020-10-26 20:34:10,165 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 823 transitions. Word has length 119 [2020-10-26 20:34:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:10,166 INFO L481 AbstractCegarLoop]: Abstraction has 621 states and 823 transitions. [2020-10-26 20:34:10,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:34:10,166 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 823 transitions. [2020-10-26 20:34:10,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-26 20:34:10,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:10,169 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:10,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:34:10,169 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:10,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:10,170 INFO L82 PathProgramCache]: Analyzing trace with hash 2129779932, now seen corresponding path program 1 times [2020-10-26 20:34:10,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:10,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579575510] [2020-10-26 20:34:10,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:10,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:10,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:12,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:12,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-26 20:34:12,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:12,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2791 [2020-10-26 20:34:12,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:12,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:12,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:34:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:34:12,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,131 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:13,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:13,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:13,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:13,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:13,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:13,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:13,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:13,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:13,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:13,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:34:13,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:13,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:13,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:13,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:13,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:13,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:13,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:34:13,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579575510] [2020-10-26 20:34:13,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:13,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:13,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449581489] [2020-10-26 20:34:13,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:13,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:13,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:13,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:13,240 INFO L87 Difference]: Start difference. First operand 621 states and 823 transitions. Second operand 7 states. [2020-10-26 20:34:15,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:15,439 INFO L93 Difference]: Finished difference Result 2024 states and 2740 transitions. [2020-10-26 20:34:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:15,440 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-10-26 20:34:15,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:15,449 INFO L225 Difference]: With dead ends: 2024 [2020-10-26 20:34:15,450 INFO L226 Difference]: Without dead ends: 1469 [2020-10-26 20:34:15,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:34:15,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2020-10-26 20:34:15,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1191. [2020-10-26 20:34:15,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1191 states. [2020-10-26 20:34:15,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1531 transitions. [2020-10-26 20:34:15,511 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1531 transitions. Word has length 127 [2020-10-26 20:34:15,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:15,512 INFO L481 AbstractCegarLoop]: Abstraction has 1191 states and 1531 transitions. [2020-10-26 20:34:15,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:15,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1531 transitions. [2020-10-26 20:34:15,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-26 20:34:15,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:15,517 INFO L422 BasicCegarLoop]: trace histogram [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, 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 20:34:15,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:34:15,517 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:15,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:15,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1943764612, now seen corresponding path program 1 times [2020-10-26 20:34:15,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:15,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327225708] [2020-10-26 20:34:15,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:15,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:17,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:17,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-26 20:34:17,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:17,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2234 [2020-10-26 20:34:17,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:17,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:17,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:17,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:34:17,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:17,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:17,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:17,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:17,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:17,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:17,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:17,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:17,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:17,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:17,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:17,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:17,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:17,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:17,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:17,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:17,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:17,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:17,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:34:17,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:17,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:17,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:17,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:17,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:17,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:17,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:18,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:18,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:18,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 20:34:18,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:18,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:18,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:18,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:34:18,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:18,062 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:34:18,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327225708] [2020-10-26 20:34:18,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:18,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:34:18,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609230465] [2020-10-26 20:34:18,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:18,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:18,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:18,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:18,065 INFO L87 Difference]: Start difference. First operand 1191 states and 1531 transitions. Second operand 7 states. [2020-10-26 20:34:19,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:19,589 INFO L93 Difference]: Finished difference Result 2217 states and 2907 transitions. [2020-10-26 20:34:19,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:34:19,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-10-26 20:34:19,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:19,603 INFO L225 Difference]: With dead ends: 2217 [2020-10-26 20:34:19,603 INFO L226 Difference]: Without dead ends: 1368 [2020-10-26 20:34:19,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:19,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2020-10-26 20:34:19,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1195. [2020-10-26 20:34:19,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1195 states. [2020-10-26 20:34:19,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1488 transitions. [2020-10-26 20:34:19,660 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1488 transitions. Word has length 139 [2020-10-26 20:34:19,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:19,660 INFO L481 AbstractCegarLoop]: Abstraction has 1195 states and 1488 transitions. [2020-10-26 20:34:19,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:19,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1488 transitions. [2020-10-26 20:34:19,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-26 20:34:19,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:19,665 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:19,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:34:19,665 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:19,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:19,666 INFO L82 PathProgramCache]: Analyzing trace with hash 830459614, now seen corresponding path program 1 times [2020-10-26 20:34:19,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:19,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191766678] [2020-10-26 20:34:19,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:21,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:21,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:23,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:23,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-26 20:34:23,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:23,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4153 [2020-10-26 20:34:23,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:23,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:23,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:23,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:34:23,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:23,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:23,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:23,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:23,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:23,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:23,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:23,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:23,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:24,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:24,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:34:24,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:24,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:24,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:24,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:24,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:24,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 20:34:24,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:24,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:24,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:24,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:24,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:34:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:24,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:34:24,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:24,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:24,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:24,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 39 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 20:34:24,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191766678] [2020-10-26 20:34:24,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:24,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:24,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910218965] [2020-10-26 20:34:24,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:24,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:24,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:24,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:24,249 INFO L87 Difference]: Start difference. First operand 1195 states and 1488 transitions. Second operand 7 states. [2020-10-26 20:34:24,439 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:34:25,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:25,984 INFO L93 Difference]: Finished difference Result 3057 states and 3926 transitions. [2020-10-26 20:34:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:25,988 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-10-26 20:34:25,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:26,000 INFO L225 Difference]: With dead ends: 3057 [2020-10-26 20:34:26,000 INFO L226 Difference]: Without dead ends: 1775 [2020-10-26 20:34:26,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:34:26,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2020-10-26 20:34:26,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1759. [2020-10-26 20:34:26,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1759 states. [2020-10-26 20:34:26,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 2018 transitions. [2020-10-26 20:34:26,071 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 2018 transitions. Word has length 151 [2020-10-26 20:34:26,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:26,071 INFO L481 AbstractCegarLoop]: Abstraction has 1759 states and 2018 transitions. [2020-10-26 20:34:26,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:26,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 2018 transitions. [2020-10-26 20:34:26,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-26 20:34:26,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:26,078 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-26 20:34:26,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:34:26,078 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:26,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:26,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1658745567, now seen corresponding path program 1 times [2020-10-26 20:34:26,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:26,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106887808] [2020-10-26 20:34:26,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:26,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:26,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:26,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:27,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:27,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-26 20:34:29,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:29,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3129 [2020-10-26 20:34:29,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:29,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:29,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-26 20:34:29,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:29,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:29,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [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: 6 [2020-10-26 20:34:29,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:29,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:29,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:29,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:29,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:29,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:29,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:29,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:29,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:29,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:29,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:29,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:29,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:29,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:34:29,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:29,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:29,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:34:29,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:29,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:34:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:29,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:29,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:29,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:34:29,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:29,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:29,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:34:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:29,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:29,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:29,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:29,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:29,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:29,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:29,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:29,585 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 62 proven. 26 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-26 20:34:29,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106887808] [2020-10-26 20:34:29,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:29,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:29,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588311698] [2020-10-26 20:34:29,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:29,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:29,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:29,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:29,588 INFO L87 Difference]: Start difference. First operand 1759 states and 2018 transitions. Second operand 7 states. [2020-10-26 20:34:31,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:31,226 INFO L93 Difference]: Finished difference Result 4862 states and 5744 transitions. [2020-10-26 20:34:31,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:31,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-10-26 20:34:31,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:31,243 INFO L225 Difference]: With dead ends: 4862 [2020-10-26 20:34:31,243 INFO L226 Difference]: Without dead ends: 3169 [2020-10-26 20:34:31,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:34:31,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2020-10-26 20:34:31,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3153. [2020-10-26 20:34:31,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3153 states. [2020-10-26 20:34:31,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 3617 transitions. [2020-10-26 20:34:31,348 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 3617 transitions. Word has length 164 [2020-10-26 20:34:31,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:31,349 INFO L481 AbstractCegarLoop]: Abstraction has 3153 states and 3617 transitions. [2020-10-26 20:34:31,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:31,349 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 3617 transitions. [2020-10-26 20:34:31,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-26 20:34:31,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:31,357 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:31,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:34:31,358 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:31,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:31,358 INFO L82 PathProgramCache]: Analyzing trace with hash -382282756, now seen corresponding path program 1 times [2020-10-26 20:34:31,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:31,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1225489245] [2020-10-26 20:34:31,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:31,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-26 20:34:36,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:36,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-26 20:34:36,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:34:36,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:36,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:36,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:36,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:36,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:36,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:36,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:36,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:34:36,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 20:34:36,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:36,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:36,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:34:36,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:34:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:36,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:36,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:36,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:34:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:34:36,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:36,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:36,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:34:36,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:36,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,853 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 68 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:34:36,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1225489245] [2020-10-26 20:34:36,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:36,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:36,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726459838] [2020-10-26 20:34:36,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:36,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:36,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:36,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:36,860 INFO L87 Difference]: Start difference. First operand 3153 states and 3617 transitions. Second operand 8 states. [2020-10-26 20:34:38,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:38,203 INFO L93 Difference]: Finished difference Result 6657 states and 7663 transitions. [2020-10-26 20:34:38,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:34:38,204 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-10-26 20:34:38,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:38,221 INFO L225 Difference]: With dead ends: 6657 [2020-10-26 20:34:38,221 INFO L226 Difference]: Without dead ends: 3570 [2020-10-26 20:34:38,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3570 states. [2020-10-26 20:34:38,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3570 to 3562. [2020-10-26 20:34:38,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3562 states. [2020-10-26 20:34:38,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 4058 transitions. [2020-10-26 20:34:38,323 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 4058 transitions. Word has length 175 [2020-10-26 20:34:38,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:38,323 INFO L481 AbstractCegarLoop]: Abstraction has 3562 states and 4058 transitions. [2020-10-26 20:34:38,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:38,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 4058 transitions. [2020-10-26 20:34:38,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-26 20:34:38,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:38,333 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:38,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:34:38,334 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:38,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:38,334 INFO L82 PathProgramCache]: Analyzing trace with hash -2106411890, now seen corresponding path program 1 times [2020-10-26 20:34:38,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:38,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455042159] [2020-10-26 20:34:38,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:38,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:40,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:42,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:42,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-26 20:34:42,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:42,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4408 [2020-10-26 20:34:42,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:34:42,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:42,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:42,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:42,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:42,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:42,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:42,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:42,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:42,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:42,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:42,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:42,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:42,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:42,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:43,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:43,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:43,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:43,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:43,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-26 20:34:43,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:43,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:43,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:43,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:34:43,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:43,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:43,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:43,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:43,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:43,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:43,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:34:43,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:43,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:43,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:34:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:43,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:43,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:43,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:34:43,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:43,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:43,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:43,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:43,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:34:43,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:43,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 77 proven. 40 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:34:43,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455042159] [2020-10-26 20:34:43,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:43,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:43,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029828226] [2020-10-26 20:34:43,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:43,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:43,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:43,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:43,297 INFO L87 Difference]: Start difference. First operand 3562 states and 4058 transitions. Second operand 8 states. [2020-10-26 20:34:43,999 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:34:44,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:44,907 INFO L93 Difference]: Finished difference Result 6282 states and 7136 transitions. [2020-10-26 20:34:44,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:34:44,910 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 189 [2020-10-26 20:34:44,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:44,926 INFO L225 Difference]: With dead ends: 6282 [2020-10-26 20:34:44,926 INFO L226 Difference]: Without dead ends: 3586 [2020-10-26 20:34:44,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 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 20:34:44,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3586 states. [2020-10-26 20:34:45,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3586 to 3570. [2020-10-26 20:34:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3570 states. [2020-10-26 20:34:45,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3570 states to 3570 states and 4024 transitions. [2020-10-26 20:34:45,024 INFO L78 Accepts]: Start accepts. Automaton has 3570 states and 4024 transitions. Word has length 189 [2020-10-26 20:34:45,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:45,025 INFO L481 AbstractCegarLoop]: Abstraction has 3570 states and 4024 transitions. [2020-10-26 20:34:45,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3570 states and 4024 transitions. [2020-10-26 20:34:45,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-26 20:34:45,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:45,034 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:45,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:34:45,034 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:45,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:45,035 INFO L82 PathProgramCache]: Analyzing trace with hash 421404829, now seen corresponding path program 1 times [2020-10-26 20:34:45,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:45,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968074953] [2020-10-26 20:34:45,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:45,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:45,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:45,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:46,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:48,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-26 20:34:48,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:48,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2963 [2020-10-26 20:34:48,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:48,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:34:48,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:34:48,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:48,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:48,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:48,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:48,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:48,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:48,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:48,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:48,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:48,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:48,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:48,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:48,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:48,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:48,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:48,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:48,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:48,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:34:48,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:48,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:34:48,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:34:48,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:34:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:48,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:48,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:48,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:48,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:34:48,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:48,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:48,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:48,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:34:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:48,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:48,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:34:48,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:48,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:48,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:48,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:34:48,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:48,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,430 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 139 proven. 14 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-26 20:34:48,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968074953] [2020-10-26 20:34:48,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:48,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:48,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389840895] [2020-10-26 20:34:48,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:48,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:48,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:48,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:48,433 INFO L87 Difference]: Start difference. First operand 3570 states and 4024 transitions. Second operand 7 states. [2020-10-26 20:34:50,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:50,030 INFO L93 Difference]: Finished difference Result 7896 states and 9002 transitions. [2020-10-26 20:34:50,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:50,031 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-26 20:34:50,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:50,049 INFO L225 Difference]: With dead ends: 7896 [2020-10-26 20:34:50,049 INFO L226 Difference]: Without dead ends: 4253 [2020-10-26 20:34:50,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:50,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2020-10-26 20:34:50,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4247. [2020-10-26 20:34:50,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4247 states. [2020-10-26 20:34:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4247 states to 4247 states and 4734 transitions. [2020-10-26 20:34:50,166 INFO L78 Accepts]: Start accepts. Automaton has 4247 states and 4734 transitions. Word has length 222 [2020-10-26 20:34:50,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:50,166 INFO L481 AbstractCegarLoop]: Abstraction has 4247 states and 4734 transitions. [2020-10-26 20:34:50,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:50,167 INFO L276 IsEmpty]: Start isEmpty. Operand 4247 states and 4734 transitions. [2020-10-26 20:34:50,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-26 20:34:50,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:50,181 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:50,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:34:50,181 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:50,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:50,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1758942950, now seen corresponding path program 1 times [2020-10-26 20:34:50,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:50,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390033306] [2020-10-26 20:34:50,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:50,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:50,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:50,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:52,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-26 20:34:54,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:54,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3896 [2020-10-26 20:34:54,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:34:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:34:54,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:54,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:54,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:34:54,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:54,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:54,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:54,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:34:54,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:34:54,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:54,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:54,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-26 20:34:54,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:34:54,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:34:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:54,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:54,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:54,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:34:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:54,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:34:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:54,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:54,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:54,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:54,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:54,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:54,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:34:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:54,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:34:54,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:54,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:54,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:54,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:34:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:54,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:54,516 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 180 proven. 46 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-26 20:34:54,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390033306] [2020-10-26 20:34:54,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:54,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:54,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016792317] [2020-10-26 20:34:54,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:54,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:54,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:54,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:54,518 INFO L87 Difference]: Start difference. First operand 4247 states and 4734 transitions. Second operand 7 states. [2020-10-26 20:34:56,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:56,279 INFO L93 Difference]: Finished difference Result 8726 states and 9768 transitions. [2020-10-26 20:34:56,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:56,282 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2020-10-26 20:34:56,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:56,303 INFO L225 Difference]: With dead ends: 8726 [2020-10-26 20:34:56,303 INFO L226 Difference]: Without dead ends: 4545 [2020-10-26 20:34:56,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 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 20:34:56,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4545 states. [2020-10-26 20:34:56,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4545 to 4535. [2020-10-26 20:34:56,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4535 states. [2020-10-26 20:34:56,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4535 states to 4535 states and 4998 transitions. [2020-10-26 20:34:56,421 INFO L78 Accepts]: Start accepts. Automaton has 4535 states and 4998 transitions. Word has length 253 [2020-10-26 20:34:56,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:56,421 INFO L481 AbstractCegarLoop]: Abstraction has 4535 states and 4998 transitions. [2020-10-26 20:34:56,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:56,422 INFO L276 IsEmpty]: Start isEmpty. Operand 4535 states and 4998 transitions. [2020-10-26 20:34:56,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-26 20:34:56,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:56,434 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:56,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:34:56,434 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:56,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:56,435 INFO L82 PathProgramCache]: Analyzing trace with hash -868269874, now seen corresponding path program 1 times [2020-10-26 20:34:56,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:56,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187323247] [2020-10-26 20:34:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:56,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:56,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:57,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:57,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-10-26 20:34:57,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:57,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1142 [2020-10-26 20:34:57,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:34:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:34:57,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:57,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:57,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:57,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:57,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:57,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:57,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:57,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:57,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:57,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:57,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:57,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:57,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:57,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:57,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:57,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:57,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:57,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:57,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:57,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:57,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:57,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:57,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:57,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:57,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:57,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:34:57,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:57,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:57,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:57,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:57,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:57,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:57,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:57,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:57,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:57,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:57,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:57,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:57,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:57,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:57,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:57,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:57,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:57,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:57,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:34:57,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:57,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:34:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:57,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:57,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:57,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:34:57,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:57,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:34:57,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:57,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:57,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 20:34:57,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:58,052 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 233 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-26 20:34:58,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187323247] [2020-10-26 20:34:58,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:58,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:58,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463891318] [2020-10-26 20:34:58,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:58,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:58,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:58,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:58,055 INFO L87 Difference]: Start difference. First operand 4535 states and 4998 transitions. Second operand 7 states. [2020-10-26 20:34:59,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:59,459 INFO L93 Difference]: Finished difference Result 7799 states and 8595 transitions. [2020-10-26 20:34:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:59,460 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 275 [2020-10-26 20:34:59,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:59,478 INFO L225 Difference]: With dead ends: 7799 [2020-10-26 20:34:59,478 INFO L226 Difference]: Without dead ends: 4553 [2020-10-26 20:34:59,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 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 20:34:59,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4553 states. [2020-10-26 20:34:59,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4553 to 4533. [2020-10-26 20:34:59,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4533 states. [2020-10-26 20:34:59,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4533 states to 4533 states and 4983 transitions. [2020-10-26 20:34:59,596 INFO L78 Accepts]: Start accepts. Automaton has 4533 states and 4983 transitions. Word has length 275 [2020-10-26 20:34:59,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:59,597 INFO L481 AbstractCegarLoop]: Abstraction has 4533 states and 4983 transitions. [2020-10-26 20:34:59,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 4533 states and 4983 transitions. [2020-10-26 20:34:59,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-26 20:34:59,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:59,610 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:59,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:34:59,610 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:59,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:59,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1003867683, now seen corresponding path program 1 times [2020-10-26 20:34:59,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:59,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563084073] [2020-10-26 20:34:59,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:00,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:00,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-26 20:35:00,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:00,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-10-26 20:35:00,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:00,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:00,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-26 20:35:00,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-26 20:35:00,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:00,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:00,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:00,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:00,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:00,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:00,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:35:00,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:00,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:00,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:00,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:00,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:00,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:00,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:00,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:00,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:00,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:00,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:35:00,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:00,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:00,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:00,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:00,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:00,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:00,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:00,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:00,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:00,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:00,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:35:00,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:00,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:00,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:00,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:00,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:00,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:00,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:00,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:00,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:00,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:00,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:00,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:00,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:00,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:00,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:00,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:00,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:35:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:00,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:00,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:00,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:00,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:00,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:35:00,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:00,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:00,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:00,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:00,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:00,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:35:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:00,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:00,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:00,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:35:00,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:00,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:00,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:00,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:00,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:00,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 20:35:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:00,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:00,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:00,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:35:00,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:00,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:35:00,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:35:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-26 20:35:01,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563084073] [2020-10-26 20:35:01,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:01,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:35:01,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221503481] [2020-10-26 20:35:01,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:35:01,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:01,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:35:01,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:35:01,008 INFO L87 Difference]: Start difference. First operand 4533 states and 4983 transitions. Second operand 5 states. [2020-10-26 20:35:01,882 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-26 20:35:02,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:02,225 INFO L93 Difference]: Finished difference Result 7863 states and 8676 transitions. [2020-10-26 20:35:02,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:35:02,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2020-10-26 20:35:02,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:02,252 INFO L225 Difference]: With dead ends: 7863 [2020-10-26 20:35:02,252 INFO L226 Difference]: Without dead ends: 4543 [2020-10-26 20:35:02,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:35:02,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4543 states. [2020-10-26 20:35:02,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4543 to 4533. [2020-10-26 20:35:02,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4533 states. [2020-10-26 20:35:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4533 states to 4533 states and 4981 transitions. [2020-10-26 20:35:02,351 INFO L78 Accepts]: Start accepts. Automaton has 4533 states and 4981 transitions. Word has length 304 [2020-10-26 20:35:02,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:02,351 INFO L481 AbstractCegarLoop]: Abstraction has 4533 states and 4981 transitions. [2020-10-26 20:35:02,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:35:02,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4533 states and 4981 transitions. [2020-10-26 20:35:02,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-26 20:35:02,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:02,367 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-26 20:35:02,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:35:02,367 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:02,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:02,368 INFO L82 PathProgramCache]: Analyzing trace with hash -295343499, now seen corresponding path program 1 times [2020-10-26 20:35:02,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:02,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841005729] [2020-10-26 20:35:02,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:02,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:02,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:02,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:03,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-26 20:35:03,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:03,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-10-26 20:35:03,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:03,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:03,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-26 20:35:03,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-26 20:35:03,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:03,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:03,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:03,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:03,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:03,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:03,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:03,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:03,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:03,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:03,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:03,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:03,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:35:03,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:03,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:03,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:03,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:03,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:03,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:03,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:03,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:35:03,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:03,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:03,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:03,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:03,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:03,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:03,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:03,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:03,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:03,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:03,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:03,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:03,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:03,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:03,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:03,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:35:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:03,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:03,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:03,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:03,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:35:03,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:03,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:03,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:03,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:03,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:03,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:35:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:03,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:03,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:35:03,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:03,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:35:03,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:03,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:03,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-26 20:35:03,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:03,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 20:35:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:03,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:03,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:35:03,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:03,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 20:35:03,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:03,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:03,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:03,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:35:03,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-26 20:35:03,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841005729] [2020-10-26 20:35:03,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:03,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:03,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912480440] [2020-10-26 20:35:03,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:03,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:03,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:03,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:03,957 INFO L87 Difference]: Start difference. First operand 4533 states and 4981 transitions. Second operand 7 states. [2020-10-26 20:35:05,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:05,550 INFO L93 Difference]: Finished difference Result 9153 states and 10081 transitions. [2020-10-26 20:35:05,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:35:05,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 324 [2020-10-26 20:35:05,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:05,564 INFO L225 Difference]: With dead ends: 9153 [2020-10-26 20:35:05,564 INFO L226 Difference]: Without dead ends: 4549 [2020-10-26 20:35:05,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:35:05,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4549 states. [2020-10-26 20:35:05,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4549 to 4537. [2020-10-26 20:35:05,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4537 states. [2020-10-26 20:35:05,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4537 states to 4537 states and 4966 transitions. [2020-10-26 20:35:05,690 INFO L78 Accepts]: Start accepts. Automaton has 4537 states and 4966 transitions. Word has length 324 [2020-10-26 20:35:05,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:05,692 INFO L481 AbstractCegarLoop]: Abstraction has 4537 states and 4966 transitions. [2020-10-26 20:35:05,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:05,692 INFO L276 IsEmpty]: Start isEmpty. Operand 4537 states and 4966 transitions. [2020-10-26 20:35:05,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-26 20:35:05,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:05,710 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-10-26 20:35:05,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:35:05,710 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:05,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:05,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1852638371, now seen corresponding path program 1 times [2020-10-26 20:35:05,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:05,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371059784] [2020-10-26 20:35:05,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:05,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:06,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 366 [2020-10-26 20:35:06,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:06,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 835 [2020-10-26 20:35:06,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:06,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:06,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-26 20:35:06,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-26 20:35:06,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:06,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:06,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:06,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:06,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:06,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:06,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:06,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:06,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:06,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:06,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:06,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:06,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:06,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:06,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:06,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:35:06,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:06,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:06,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:06,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:06,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:06,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:06,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:06,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:06,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:35:06,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:06,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:06,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:06,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:06,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:06,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:06,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:06,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:06,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:06,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:06,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:06,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:06,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:35:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:06,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:06,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:06,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:06,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:06,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:06,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:06,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:06,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:06,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:06,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:35:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:06,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:06,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:35:06,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:06,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:35:06,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:06,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:06,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:06,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:06,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:06,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-26 20:35:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:06,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:06,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:06,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:35:06,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:06,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:35:06,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:06,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:06,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:06,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-26 20:35:06,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:07,022 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-26 20:35:07,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371059784] [2020-10-26 20:35:07,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:07,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:35:07,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867898611] [2020-10-26 20:35:07,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:35:07,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:07,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:35:07,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:35:07,025 INFO L87 Difference]: Start difference. First operand 4537 states and 4966 transitions. Second operand 5 states. [2020-10-26 20:35:07,758 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:35:08,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:08,277 INFO L93 Difference]: Finished difference Result 8467 states and 9286 transitions. [2020-10-26 20:35:08,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:35:08,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 344 [2020-10-26 20:35:08,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:08,284 INFO L225 Difference]: With dead ends: 8467 [2020-10-26 20:35:08,284 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:35:08,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:35:08,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:35:08,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:35:08,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:35:08,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:35:08,298 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 344 [2020-10-26 20:35:08,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:08,298 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:35:08,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:35:08,299 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:35:08,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:35:08,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:35:08,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:35:09,146 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 214 [2020-10-26 20:35:09,338 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 192 [2020-10-26 20:35:09,641 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 43 [2020-10-26 20:35:10,902 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 281 DAG size of output: 82 [2020-10-26 20:35:11,388 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 62 [2020-10-26 20:35:12,019 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 62 [2020-10-26 20:35:12,335 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 49 [2020-10-26 20:35:12,340 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:35:12,340 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:35:12,340 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:35:12,340 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:35:12,340 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:35:12,340 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 20:35:12,341 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:35:12,341 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,341 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,341 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,341 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,341 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,341 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,341 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:35:12,341 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:35:12,341 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:35:12,341 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:35:12,341 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:35:12,342 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:35:12,342 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:35:12,342 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:35:12,342 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:35:12,342 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:35:12,342 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:35:12,342 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:35:12,342 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,342 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,343 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,343 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,343 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,343 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,343 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:35:12,343 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:35:12,344 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:35:12,344 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:35:12,344 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:35:12,344 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:35:12,344 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:35:12,344 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:35:12,344 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:35:12,344 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:35:12,344 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,344 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,345 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,345 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,345 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,345 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,345 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:35:12,345 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:35:12,345 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:35:12,345 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:35:12,345 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:35:12,345 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:35:12,345 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:35:12,346 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:35:12,346 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:35:12,346 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:35:12,346 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:35:12,346 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:35:12,346 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:35:12,346 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:35:12,346 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:35:12,346 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,346 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,346 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,347 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,348 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,348 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,348 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,348 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:35:12,348 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:35:12,348 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:35:12,348 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:35:12,348 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:35:12,348 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:35:12,348 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:35:12,348 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:35:12,349 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:35:12,350 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:35:12,350 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,350 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,350 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:35:12,350 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:35:12,353 INFO L270 CegarLoopResult]: At program point L481(line 481) the Hoare annotation is: (let ((.cse0 (not (= |old(~a21~0)| 1)))) (and (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a16~0)| 5)) .cse0) (or .cse0 (not (= 4 |old(~a16~0)|)) (= |old(~a7~0)| 1)) (not (<= |old(~a8~0)| 13)) (or (not (<= 4 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a16~0)| 4)) (not (<= |old(~a17~0)| 0)) .cse0 (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 0))) (or (not (= 14 |old(~a8~0)|)) .cse0) (or (not (= 6 |old(~a16~0)|)) .cse0))) [2020-10-26 20:35:12,353 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:35:12,353 INFO L274 CegarLoopResult]: For program point L481-1(line 481) no Hoare annotation was computed. [2020-10-26 20:35:12,353 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:35:12,353 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:35:12,354 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:35:12,355 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:35:12,356 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:35:12,356 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:35:12,356 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:35:12,356 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:35:12,356 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:35:12,356 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:35:12,356 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,356 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,356 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse5 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a21~0 1)) (.cse4 (= ~a20~0 |old(~a20~0)|)) (.cse7 (= ~a16~0 |old(~a16~0)|)) (.cse6 (= ~a8~0 |old(~a8~0)|))) (let ((.cse1 (and .cse5 .cse2 .cse3 .cse4 .cse7 .cse6)) (.cse0 (not (= |old(~a21~0)| 1)))) (and (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a16~0)| 5)) .cse0 .cse1) (or (not (<= 4 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a7~0)|)) (not (<= |old(~a16~0)| 4)) (not (<= |old(~a7~0)| 1)) (not (<= |old(~a17~0)| 0)) (and (<= 1 ~a7~0) .cse2 .cse3 .cse4 (<= ~a16~0 4) (<= 4 ~a16~0) (<= ~a8~0 15) (<= 15 ~a8~0) (<= ~a7~0 1)) .cse0 (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 0))) (or (and .cse5 .cse2 .cse3 .cse4 .cse6 (= ~a16~0 4)) .cse0 (not (= 4 |old(~a16~0)|)) (= |old(~a7~0)| 1)) (or (not (= 6 |old(~a16~0)|)) .cse1 .cse0) (or (not (= 14 |old(~a8~0)|)) (and .cse5 .cse2 .cse3 .cse4 (= 14 ~a8~0) .cse7) .cse0) (or (not (<= |old(~a8~0)| 13)) (and .cse5 .cse2 (= ~a21~0 |old(~a21~0)|) .cse4 .cse7 .cse6))))) [2020-10-26 20:35:12,357 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,357 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,357 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,357 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:35:12,357 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:35:12,357 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:35:12,357 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:35:12,357 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:35:12,357 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:35:12,358 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:35:12,358 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:35:12,358 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:35:12,358 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:35:12,358 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:35:12,358 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,358 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,358 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,358 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:35:12,359 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:35:12,360 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:35:12,361 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:35:12,361 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:35:12,361 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:35:12,361 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:35:12,361 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:35:12,361 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:35:12,361 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:35:12,361 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:35:12,361 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:35:12,361 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:35:12,361 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (= ~a20~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (<= ~a8~0 15) (= ~a7~0 0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-26 20:35:12,361 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:35:12,361 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:35:12,362 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| |old(~a21~0)|)) (not (= |old(~a17~0)| 1)) (not (<= |old(~a8~0)| 15)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (= ~a21~0 ~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 (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:35:12,362 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:35:12,362 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and .cse0 (= ~a16~0 6)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a21~0)| 1)) (and .cse0 (<= ~a16~0 5) (<= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (and (<= ~a16~0 4) (<= ~a17~0 0) (<= 4 ~a16~0) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= ~a20~0 0)) (and .cse0 (= 14 ~a8~0)) (not (= |old(~a17~0)| 1)) (not (<= 1 |old(~a21~0)|)) (not (<= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (<= ~a8~0 13) (and .cse0 (= ~a16~0 4) (not (= ~a7~0 1))))) [2020-10-26 20:35:12,362 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:35:12,362 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:35:12,363 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and .cse0 (= ~a16~0 6)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a21~0)| 1)) (and .cse0 (<= ~a16~0 5) (<= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (and (<= ~a16~0 4) (<= ~a17~0 0) (<= 4 ~a16~0) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= ~a20~0 0)) (and .cse0 (= 14 ~a8~0)) (not (= |old(~a17~0)| 1)) (not (<= 1 |old(~a21~0)|)) (not (<= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (<= ~a8~0 13) (and .cse0 (= ~a16~0 4) (not (= ~a7~0 1))))) [2020-10-26 20:35:12,363 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:35:12,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:35:12 BoogieIcfgContainer [2020-10-26 20:35:12,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:35:12,405 INFO L168 Benchmark]: Toolchain (without parser) took 81291.51 ms. Allocated memory was 125.8 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 99.7 MB in the beginning and 971.0 MB in the end (delta: -871.3 MB). Peak memory consumption was 675.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:12,407 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 125.8 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:35:12,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.35 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 99.0 MB in the beginning and 129.7 MB in the end (delta: -30.7 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:12,409 INFO L168 Benchmark]: Boogie Preprocessor took 123.20 ms. Allocated memory is still 151.0 MB. Free memory was 129.7 MB in the beginning and 124.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:12,409 INFO L168 Benchmark]: RCFGBuilder took 1244.62 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 126.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 59.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:12,412 INFO L168 Benchmark]: TraceAbstraction took 79214.85 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 979.4 MB). Free memory was 126.0 MB in the beginning and 971.0 MB in the end (delta: -845.1 MB). Peak memory consumption was 676.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:12,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 125.8 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 698.35 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 99.0 MB in the beginning and 129.7 MB in the end (delta: -30.7 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 123.20 ms. Allocated memory is still 151.0 MB. Free memory was 129.7 MB in the beginning and 124.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1244.62 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 126.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 59.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 79214.85 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 979.4 MB). Free memory was 126.0 MB in the beginning and 971.0 MB in the end (delta: -845.1 MB). Peak memory consumption was 676.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((((((((((a21 == 1 && a16 == 6) || !(\old(a8) <= 15)) || !(\old(a21) <= 1)) || ((a21 == 1 && a16 <= 5) && 5 <= a16)) || !(\old(a20) == 1)) || ((((((a16 <= 4 && a17 <= 0) && 4 <= a16) && a21 <= 1) && 1 <= a21) && a8 <= 15) && a20 <= 0)) || (a21 == 1 && 14 == a8)) || !(\old(a17) == 1)) || !(1 <= \old(a21))) || !(15 <= \old(a8))) || !(5 == \old(a16))) || !(\old(a7) == 0)) || !(a12 == 8)) || a8 <= 13) || ((a21 == 1 && a16 == 4) && !(a7 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 75.0s, OverallIterations: 15, TraceHistogramMax: 7, AutomataDifference: 27.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 398 SDtfs, 6303 SDslu, 488 SDs, 0 SdLazy, 11579 SolverSat, 1393 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 312 GetRequests, 171 SyntacticMatches, 8 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4537occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 571 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 569 PreInvPairs, 657 NumberOfFragments, 657 HoareAnnotationTreeSize, 569 FomulaSimplifications, 5247 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 10474 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 43.9s InterpolantComputationTime, 3010 NumberOfCodeBlocks, 3010 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2995 ConstructedInterpolants, 0 QuantifiedInterpolants, 2853428 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 2869/3062 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...