/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/Problem10_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:29:26,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:29:26,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:29:26,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:29:26,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:29:26,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:29:26,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:29:26,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:29:26,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:29:26,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:29:26,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:29:26,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:29:26,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:29:26,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:29:26,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:29:26,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:29:26,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:29:26,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:29:26,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:29:26,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:29:26,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:29:26,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:29:26,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:29:26,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:29:26,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:29:26,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:29:26,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:29:26,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:29:26,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:29:26,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:29:26,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:29:26,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:29:26,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:29:26,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:29:26,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:29:26,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:29:26,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:29:26,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:29:26,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:29:26,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:29:26,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:29:26,841 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 22:29:26,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:29:26,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:29:26,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:29:26,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:29:26,909 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:29:26,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:29:26,909 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:29:26,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:29:26,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:29:26,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:29:26,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:29:26,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:29:26,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:29:26,912 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:29:26,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:29:26,912 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:29:26,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:29:26,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:29:26,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:29:26,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:29:26,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:29:26,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:29:26,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:29:26,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:29:26,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:29:26,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:29:26,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:29:26,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:29:26,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:29:26,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:29:27,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:29:27,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:29:27,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:29:27,458 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:29:27,459 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:29:27,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label02.c [2020-10-26 22:29:27,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2854af4d9/b4826cab8c714358ae078680f2d305fe/FLAG80615d11e [2020-10-26 22:29:28,376 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:29:28,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label02.c [2020-10-26 22:29:28,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2854af4d9/b4826cab8c714358ae078680f2d305fe/FLAG80615d11e [2020-10-26 22:29:28,657 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2854af4d9/b4826cab8c714358ae078680f2d305fe [2020-10-26 22:29:28,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:29:28,667 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:29:28,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:29:28,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:29:28,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:29:28,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:29:28" (1/1) ... [2020-10-26 22:29:28,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613cb519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:28, skipping insertion in model container [2020-10-26 22:29:28,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:29:28" (1/1) ... [2020-10-26 22:29:28,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:29:28,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:29:29,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:29:29,296 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:29:29,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:29:29,457 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:29:29,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:29 WrapperNode [2020-10-26 22:29:29,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:29:29,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:29:29,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:29:29,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:29:29,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:29" (1/1) ... [2020-10-26 22:29:29,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:29" (1/1) ... [2020-10-26 22:29:29,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:29" (1/1) ... [2020-10-26 22:29:29,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:29" (1/1) ... [2020-10-26 22:29:29,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:29" (1/1) ... [2020-10-26 22:29:29,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:29" (1/1) ... [2020-10-26 22:29:29,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:29" (1/1) ... [2020-10-26 22:29:29,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:29:29,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:29:29,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:29:29,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:29:29,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:29" (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 22:29:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:29:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:29:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:29:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:29:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:29:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:29:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:29:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:29:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:29:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:29:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:29:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:29:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:29:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:29:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:29:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:29:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:29:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:29:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:29:31,301 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:29:31,301 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:29:31,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:29:31 BoogieIcfgContainer [2020-10-26 22:29:31,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:29:31,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:29:31,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:29:31,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:29:31,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:29:28" (1/3) ... [2020-10-26 22:29:31,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f0b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:29:31, skipping insertion in model container [2020-10-26 22:29:31,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:29" (2/3) ... [2020-10-26 22:29:31,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f0b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:29:31, skipping insertion in model container [2020-10-26 22:29:31,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:29:31" (3/3) ... [2020-10-26 22:29:31,314 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label02.c [2020-10-26 22:29:31,326 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:29:31,332 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:29:31,346 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:29:31,379 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:29:31,380 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:29:31,380 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:29:31,380 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:29:31,380 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:29:31,380 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:29:31,380 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:29:31,381 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:29:31,406 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:29:31,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-26 22:29:31,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:31,418 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] [2020-10-26 22:29:31,418 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:31,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:31,425 INFO L82 PathProgramCache]: Analyzing trace with hash 987398036, now seen corresponding path program 1 times [2020-10-26 22:29:31,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:31,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825310060] [2020-10-26 22:29:31,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:31,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:32,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:32,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-26 22:29:32,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:32,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 557 [2020-10-26 22:29:32,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:29:32,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:29:32,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-26 22:29:32,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:29:32,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:29:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:32,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:32,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:32,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:29:32,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:32,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 22:29:32,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:32,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:29:32,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:32,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:29:32,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:29:32,519 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 22:29:32,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825310060] [2020-10-26 22:29:32,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:29:32,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:29:32,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109993874] [2020-10-26 22:29:32,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:29:32,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:29:32,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:29:32,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:29:32,549 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-26 22:29:34,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:29:34,757 INFO L93 Difference]: Finished difference Result 601 states and 1027 transitions. [2020-10-26 22:29:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:29:34,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-10-26 22:29:34,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:29:34,779 INFO L225 Difference]: With dead ends: 601 [2020-10-26 22:29:34,779 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:29:34,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:29:34,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:29:34,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-26 22:29:34,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-26 22:29:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 431 transitions. [2020-10-26 22:29:34,881 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 431 transitions. Word has length 66 [2020-10-26 22:29:34,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:29:34,882 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 431 transitions. [2020-10-26 22:29:34,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:29:34,882 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 431 transitions. [2020-10-26 22:29:34,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-26 22:29:34,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:34,889 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:29:34,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:29:34,890 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:34,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:34,891 INFO L82 PathProgramCache]: Analyzing trace with hash 2139086640, now seen corresponding path program 1 times [2020-10-26 22:29:34,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:34,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550380848] [2020-10-26 22:29:34,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:34,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:35,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:36,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:36,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:36,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-26 22:29:36,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:29:36,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1579 [2020-10-26 22:29:36,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:36,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:29:36,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:29:36,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-26 22:29:36,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:29:36,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:29:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:36,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:36,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:36,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:29:36,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:36,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 22:29:36,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:29:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:29:36,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:29:36,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:29:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:36,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:36,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:36,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:36,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 22:29:36,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:29:36,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-26 22:29:36,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:36,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:29:36,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:29:36,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 22:29:36,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:37,152 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 54 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:29:37,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550380848] [2020-10-26 22:29:37,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:29:37,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:29:37,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958322639] [2020-10-26 22:29:37,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:29:37,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:29:37,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:29:37,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:29:37,162 INFO L87 Difference]: Start difference. First operand 299 states and 431 transitions. Second operand 6 states. [2020-10-26 22:29:38,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:29:38,890 INFO L93 Difference]: Finished difference Result 890 states and 1312 transitions. [2020-10-26 22:29:38,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:29:38,893 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2020-10-26 22:29:38,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:29:38,900 INFO L225 Difference]: With dead ends: 890 [2020-10-26 22:29:38,900 INFO L226 Difference]: Without dead ends: 597 [2020-10-26 22:29:38,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:29:38,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-26 22:29:38,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 593. [2020-10-26 22:29:38,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-26 22:29:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 828 transitions. [2020-10-26 22:29:38,981 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 828 transitions. Word has length 140 [2020-10-26 22:29:38,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:29:38,983 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 828 transitions. [2020-10-26 22:29:38,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:29:38,984 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 828 transitions. [2020-10-26 22:29:38,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-26 22:29:38,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:38,993 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:29:38,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:29:38,995 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:38,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:38,996 INFO L82 PathProgramCache]: Analyzing trace with hash -175593224, now seen corresponding path program 1 times [2020-10-26 22:29:38,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:38,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829276620] [2020-10-26 22:29:38,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:39,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:39,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:39,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:39,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-26 22:29:39,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:29:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 643 [2020-10-26 22:29:39,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:39,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:29:39,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:29:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 22:29:39,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:39,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:29:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:39,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:39,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:39,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:29:39,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:39,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 22:29:39,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:29:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:29:39,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:39,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:29:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:39,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:39,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:39,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:29:39,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:39,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-26 22:29:39,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:29:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:29:39,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 57 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:29:40,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829276620] [2020-10-26 22:29:40,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:29:40,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:29:40,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229505113] [2020-10-26 22:29:40,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:29:40,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:29:40,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:29:40,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:29:40,058 INFO L87 Difference]: Start difference. First operand 593 states and 828 transitions. Second operand 5 states. [2020-10-26 22:29:41,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:29:41,938 INFO L93 Difference]: Finished difference Result 1766 states and 2527 transitions. [2020-10-26 22:29:41,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:29:41,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-10-26 22:29:41,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:29:41,949 INFO L225 Difference]: With dead ends: 1766 [2020-10-26 22:29:41,950 INFO L226 Difference]: Without dead ends: 1179 [2020-10-26 22:29:41,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:29:41,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2020-10-26 22:29:42,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1173. [2020-10-26 22:29:42,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1173 states. [2020-10-26 22:29:42,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1530 transitions. [2020-10-26 22:29:42,011 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1530 transitions. Word has length 145 [2020-10-26 22:29:42,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:29:42,012 INFO L481 AbstractCegarLoop]: Abstraction has 1173 states and 1530 transitions. [2020-10-26 22:29:42,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:29:42,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1530 transitions. [2020-10-26 22:29:42,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-26 22:29:42,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:42,019 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:29:42,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:29:42,019 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:42,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:42,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1219284736, now seen corresponding path program 1 times [2020-10-26 22:29:42,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:42,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161226347] [2020-10-26 22:29:42,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:42,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:42,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:42,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:43,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:43,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-26 22:29:43,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:29:43,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1618 [2020-10-26 22:29:43,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:43,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:29:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:29:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-26 22:29:43,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:29:43,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:29:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:43,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:43,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:43,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:29:43,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:43,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:29:43,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:43,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:29:43,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:43,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:29:43,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:43,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:29:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:43,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:43,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:43,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-26 22:29:43,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:43,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-26 22:29:43,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:29:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:29:43,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-26 22:29:43,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:29:44,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161226347] [2020-10-26 22:29:44,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:29:44,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:29:44,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401206981] [2020-10-26 22:29:44,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:29:44,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:29:44,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:29:44,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:29:44,190 INFO L87 Difference]: Start difference. First operand 1173 states and 1530 transitions. Second operand 7 states. [2020-10-26 22:29:46,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:29:46,174 INFO L93 Difference]: Finished difference Result 2956 states and 4003 transitions. [2020-10-26 22:29:46,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:29:46,175 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-10-26 22:29:46,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:29:46,186 INFO L225 Difference]: With dead ends: 2956 [2020-10-26 22:29:46,187 INFO L226 Difference]: Without dead ends: 1789 [2020-10-26 22:29:46,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:29:46,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2020-10-26 22:29:46,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1644. [2020-10-26 22:29:46,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2020-10-26 22:29:46,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2121 transitions. [2020-10-26 22:29:46,258 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2121 transitions. Word has length 164 [2020-10-26 22:29:46,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:29:46,259 INFO L481 AbstractCegarLoop]: Abstraction has 1644 states and 2121 transitions. [2020-10-26 22:29:46,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:29:46,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2121 transitions. [2020-10-26 22:29:46,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-26 22:29:46,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:46,263 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:29:46,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:29:46,264 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:46,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:46,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1048467372, now seen corresponding path program 1 times [2020-10-26 22:29:46,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:46,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531650788] [2020-10-26 22:29:46,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:46,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:46,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:47,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:47,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:47,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-26 22:29:47,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:29:47,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1496 [2020-10-26 22:29:47,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:29:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:29:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:29:47,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:47,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:29:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:47,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:47,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:47,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:29:47,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:47,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 22:29:47,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:29:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:29:47,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:47,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:29:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:48,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:48,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:48,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 22:29:48,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:48,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-26 22:29:48,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:48,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:29:48,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:29:48,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-26 22:29:48,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:48,453 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:29:48,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531650788] [2020-10-26 22:29:48,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:29:48,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:29:48,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932658513] [2020-10-26 22:29:48,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:29:48,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:29:48,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:29:48,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:29:48,456 INFO L87 Difference]: Start difference. First operand 1644 states and 2121 transitions. Second operand 7 states. [2020-10-26 22:29:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:29:50,343 INFO L93 Difference]: Finished difference Result 3439 states and 4436 transitions. [2020-10-26 22:29:50,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:29:50,344 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-10-26 22:29:50,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:29:50,362 INFO L225 Difference]: With dead ends: 3439 [2020-10-26 22:29:50,362 INFO L226 Difference]: Without dead ends: 1801 [2020-10-26 22:29:50,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:29:50,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2020-10-26 22:29:50,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1793. [2020-10-26 22:29:50,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1793 states. [2020-10-26 22:29:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2277 transitions. [2020-10-26 22:29:50,460 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2277 transitions. Word has length 183 [2020-10-26 22:29:50,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:29:50,460 INFO L481 AbstractCegarLoop]: Abstraction has 1793 states and 2277 transitions. [2020-10-26 22:29:50,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:29:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2277 transitions. [2020-10-26 22:29:50,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-26 22:29:50,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:50,466 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:29:50,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:29:50,466 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:50,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:50,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1041768736, now seen corresponding path program 1 times [2020-10-26 22:29:50,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:50,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615214728] [2020-10-26 22:29:50,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:50,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:50,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:50,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:51,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:52,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:52,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-26 22:29:52,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:29:52,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1772 [2020-10-26 22:29:52,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:29:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:29:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-26 22:29:52,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:52,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:29:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:52,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:52,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:52,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:29:52,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:52,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:29:52,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:29:52,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:52,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:29:52,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:52,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:29:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:52,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:52,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:52,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:29:52,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:52,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-26 22:29:52,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:29:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:29:52,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:52,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 22:29:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:52,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:52,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:52,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:29:52,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:52,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-26 22:29:52,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:52,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:29:52,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:29:52,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:29:52,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:52,754 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 186 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:29:52,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615214728] [2020-10-26 22:29:52,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:29:52,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:29:52,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956030017] [2020-10-26 22:29:52,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:29:52,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:29:52,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:29:52,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:29:52,757 INFO L87 Difference]: Start difference. First operand 1793 states and 2277 transitions. Second operand 7 states. [2020-10-26 22:29:54,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:29:54,947 INFO L93 Difference]: Finished difference Result 4047 states and 5364 transitions. [2020-10-26 22:29:54,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:29:54,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-10-26 22:29:54,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:29:54,960 INFO L225 Difference]: With dead ends: 4047 [2020-10-26 22:29:54,960 INFO L226 Difference]: Without dead ends: 1813 [2020-10-26 22:29:54,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:29:54,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2020-10-26 22:29:55,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1791. [2020-10-26 22:29:55,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1791 states. [2020-10-26 22:29:55,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2206 transitions. [2020-10-26 22:29:55,032 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2206 transitions. Word has length 218 [2020-10-26 22:29:55,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:29:55,033 INFO L481 AbstractCegarLoop]: Abstraction has 1791 states and 2206 transitions. [2020-10-26 22:29:55,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:29:55,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2206 transitions. [2020-10-26 22:29:55,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-26 22:29:55,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:55,038 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:29:55,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:29:55,039 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:55,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:55,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1861190820, now seen corresponding path program 1 times [2020-10-26 22:29:55,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:55,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379315484] [2020-10-26 22:29:55,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:55,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:55,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:56,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:56,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:56,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-26 22:29:56,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:29:56,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1565 [2020-10-26 22:29:56,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:56,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:29:56,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:29:56,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-26 22:29:56,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:56,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:29:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:56,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:56,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:56,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:29:56,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:56,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:29:56,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:56,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:29:56,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:56,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:29:56,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:56,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:29:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:56,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:56,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:56,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:29:56,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:56,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-26 22:29:56,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:56,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:29:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:29:56,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:56,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:29:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:56,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:57,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:57,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-26 22:29:57,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:57,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-26 22:29:57,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:57,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:29:57,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:29:57,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-26 22:29:57,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:57,197 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 183 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:29:57,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379315484] [2020-10-26 22:29:57,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:29:57,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:29:57,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931901466] [2020-10-26 22:29:57,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:29:57,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:29:57,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:29:57,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:29:57,201 INFO L87 Difference]: Start difference. First operand 1791 states and 2206 transitions. Second operand 7 states. [2020-10-26 22:29:59,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:29:59,144 INFO L93 Difference]: Finished difference Result 4025 states and 5168 transitions. [2020-10-26 22:29:59,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:29:59,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2020-10-26 22:29:59,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:29:59,160 INFO L225 Difference]: With dead ends: 4025 [2020-10-26 22:29:59,160 INFO L226 Difference]: Without dead ends: 2383 [2020-10-26 22:29:59,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:29:59,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2020-10-26 22:29:59,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2375. [2020-10-26 22:29:59,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2375 states. [2020-10-26 22:29:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 3003 transitions. [2020-10-26 22:29:59,254 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 3003 transitions. Word has length 234 [2020-10-26 22:29:59,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:29:59,255 INFO L481 AbstractCegarLoop]: Abstraction has 2375 states and 3003 transitions. [2020-10-26 22:29:59,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:29:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 3003 transitions. [2020-10-26 22:29:59,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-10-26 22:29:59,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:59,264 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:29:59,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:29:59,265 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:59,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:59,265 INFO L82 PathProgramCache]: Analyzing trace with hash 999293508, now seen corresponding path program 1 times [2020-10-26 22:29:59,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:59,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627367969] [2020-10-26 22:29:59,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:59,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:59,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:59,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:01,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:01,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-10-26 22:30:01,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:30:01,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2506 [2020-10-26 22:30:01,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:30:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:30:01,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:01,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:01,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:01,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:01,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:01,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:01,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 22:30:01,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:02,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:30:02,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:02,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:02,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:02,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:30:02,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:02,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 22:30:02,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:02,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:02,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:02,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:30:02,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:30:02,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:30:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:02,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:02,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:02,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:30:02,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:02,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-26 22:30:02,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:02,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:02,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:02,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:30:02,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:30:02,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 22:30:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:02,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:02,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:02,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-26 22:30:02,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:02,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 22:30:02,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-26 22:30:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:02,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 245 proven. 76 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-26 22:30:02,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627367969] [2020-10-26 22:30:02,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:02,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:30:02,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874408059] [2020-10-26 22:30:02,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:30:02,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:02,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:30:02,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:30:02,546 INFO L87 Difference]: Start difference. First operand 2375 states and 3003 transitions. Second operand 7 states. [2020-10-26 22:30:05,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:05,178 INFO L93 Difference]: Finished difference Result 4748 states and 6014 transitions. [2020-10-26 22:30:05,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:30:05,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 311 [2020-10-26 22:30:05,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:05,192 INFO L225 Difference]: With dead ends: 4748 [2020-10-26 22:30:05,192 INFO L226 Difference]: Without dead ends: 2522 [2020-10-26 22:30:05,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:30:05,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2020-10-26 22:30:05,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 1942. [2020-10-26 22:30:05,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1942 states. [2020-10-26 22:30:05,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2378 transitions. [2020-10-26 22:30:05,263 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2378 transitions. Word has length 311 [2020-10-26 22:30:05,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:05,263 INFO L481 AbstractCegarLoop]: Abstraction has 1942 states and 2378 transitions. [2020-10-26 22:30:05,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:30:05,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2378 transitions. [2020-10-26 22:30:05,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-10-26 22:30:05,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:05,273 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:05,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:30:05,273 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:05,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:05,274 INFO L82 PathProgramCache]: Analyzing trace with hash -66158784, now seen corresponding path program 1 times [2020-10-26 22:30:05,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:05,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508174625] [2020-10-26 22:30:05,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:05,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:05,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:05,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:06,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:10,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:10,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-26 22:30:10,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:30:10,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-26 22:30:10,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:10,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:10,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:30:10,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-26 22:30:10,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:10,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:10,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:10,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:10,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:10,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:10,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:30:10,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:10,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:10,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:10,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:10,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:10,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:30:10,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:10,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-26 22:30:10,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:10,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:10,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:10,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:30:10,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:10,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:30:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:10,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:10,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:10,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:30:10,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:10,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-26 22:30:10,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:10,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:10,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:30:10,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:10,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-26 22:30:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:10,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:10,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:10,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-26 22:30:10,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:10,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 22:30:10,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-26 22:30:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:10,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 256 proven. 80 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-26 22:30:11,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508174625] [2020-10-26 22:30:11,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:11,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:30:11,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199438563] [2020-10-26 22:30:11,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:30:11,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:11,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:30:11,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:30:11,110 INFO L87 Difference]: Start difference. First operand 1942 states and 2378 transitions. Second operand 7 states. [2020-10-26 22:30:13,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:13,384 INFO L93 Difference]: Finished difference Result 4339 states and 5377 transitions. [2020-10-26 22:30:13,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:30:13,384 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 362 [2020-10-26 22:30:13,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:13,400 INFO L225 Difference]: With dead ends: 4339 [2020-10-26 22:30:13,401 INFO L226 Difference]: Without dead ends: 2546 [2020-10-26 22:30:13,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:30:13,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2020-10-26 22:30:13,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 2542. [2020-10-26 22:30:13,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2542 states. [2020-10-26 22:30:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 3080 transitions. [2020-10-26 22:30:13,483 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 3080 transitions. Word has length 362 [2020-10-26 22:30:13,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:13,484 INFO L481 AbstractCegarLoop]: Abstraction has 2542 states and 3080 transitions. [2020-10-26 22:30:13,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:30:13,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 3080 transitions. [2020-10-26 22:30:13,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2020-10-26 22:30:13,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:13,496 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:13,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:30:13,496 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:13,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:13,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1773713316, now seen corresponding path program 1 times [2020-10-26 22:30:13,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:13,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885936436] [2020-10-26 22:30:13,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:13,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:13,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:14,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:14,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:18,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:18,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 393 [2020-10-26 22:30:18,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:30:18,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-26 22:30:18,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:30:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:30:18,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:18,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:18,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:18,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:18,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:18,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:18,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:30:18,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:18,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:18,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:18,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:18,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:18,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:18,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:18,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:18,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:30:18,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-26 22:30:18,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:30:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:18,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:30:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:18,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:18,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:18,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:30:18,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:18,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-26 22:30:18,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:30:18,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:19,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-26 22:30:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:19,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:19,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:19,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:30:19,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:19,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 22:30:19,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:19,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:19,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-26 22:30:19,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:19,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:19,352 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 252 proven. 76 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-26 22:30:19,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885936436] [2020-10-26 22:30:19,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:19,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:30:19,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497730682] [2020-10-26 22:30:19,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:30:19,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:19,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:30:19,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:30:19,354 INFO L87 Difference]: Start difference. First operand 2542 states and 3080 transitions. Second operand 7 states. [2020-10-26 22:30:21,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:21,379 INFO L93 Difference]: Finished difference Result 5231 states and 6335 transitions. [2020-10-26 22:30:21,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:30:21,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 377 [2020-10-26 22:30:21,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:21,393 INFO L225 Difference]: With dead ends: 5231 [2020-10-26 22:30:21,393 INFO L226 Difference]: Without dead ends: 2838 [2020-10-26 22:30:21,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 22:30:21,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2020-10-26 22:30:21,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2834. [2020-10-26 22:30:21,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2834 states. [2020-10-26 22:30:21,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3391 transitions. [2020-10-26 22:30:21,483 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3391 transitions. Word has length 377 [2020-10-26 22:30:21,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:21,484 INFO L481 AbstractCegarLoop]: Abstraction has 2834 states and 3391 transitions. [2020-10-26 22:30:21,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:30:21,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3391 transitions. [2020-10-26 22:30:21,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2020-10-26 22:30:21,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:21,496 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:21,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:30:21,496 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:21,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:21,497 INFO L82 PathProgramCache]: Analyzing trace with hash -566250260, now seen corresponding path program 1 times [2020-10-26 22:30:21,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:21,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663255610] [2020-10-26 22:30:21,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:21,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:21,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:21,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:25,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:25,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 400 [2020-10-26 22:30:25,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:30:25,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4097 [2020-10-26 22:30:25,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:25,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:30:25,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-26 22:30:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:30:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:25,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:25,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:25,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:25,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:25,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:25,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:30:25,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:25,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:25,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:25,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:25,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:25,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:25,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:25,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:25,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:30:25,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:25,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 22:30:25,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:25,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:25,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:30:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:25,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:26,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:26,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:30:26,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:26,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 22:30:26,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:26,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:26,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:26,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-26 22:30:26,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:26,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-26 22:30:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:26,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:26,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:26,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:26,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-26 22:30:26,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:30:26,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-26 22:30:26,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-26 22:30:26,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:26,356 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 293 proven. 59 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-26 22:30:26,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663255610] [2020-10-26 22:30:26,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:26,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:30:26,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096977957] [2020-10-26 22:30:26,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:30:26,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:26,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:30:26,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:30:26,358 INFO L87 Difference]: Start difference. First operand 2834 states and 3391 transitions. Second operand 7 states. [2020-10-26 22:30:28,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:28,213 INFO L93 Difference]: Finished difference Result 5847 states and 7125 transitions. [2020-10-26 22:30:28,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:30:28,214 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 384 [2020-10-26 22:30:28,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:28,231 INFO L225 Difference]: With dead ends: 5847 [2020-10-26 22:30:28,231 INFO L226 Difference]: Without dead ends: 3162 [2020-10-26 22:30:28,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-26 22:30:28,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2020-10-26 22:30:28,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3118. [2020-10-26 22:30:28,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3118 states. [2020-10-26 22:30:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 3667 transitions. [2020-10-26 22:30:28,343 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 3667 transitions. Word has length 384 [2020-10-26 22:30:28,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:28,344 INFO L481 AbstractCegarLoop]: Abstraction has 3118 states and 3667 transitions. [2020-10-26 22:30:28,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:30:28,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 3667 transitions. [2020-10-26 22:30:28,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2020-10-26 22:30:28,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:28,358 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:28,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:30:28,358 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:28,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:28,359 INFO L82 PathProgramCache]: Analyzing trace with hash 2024488292, now seen corresponding path program 1 times [2020-10-26 22:30:28,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:28,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367564392] [2020-10-26 22:30:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:28,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:28,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:28,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:31,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:31,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 412 [2020-10-26 22:30:31,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:30:31,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2587 [2020-10-26 22:30:31,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:31,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:31,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:30:31,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:30:31,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:31,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:31,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:31,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:31,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:31,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:31,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:30:31,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:31,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:31,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:31,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:31,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:31,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:31,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:31,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:31,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:30:31,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:31,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:30:31,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:31,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:31,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:31,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:31,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:31,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:30:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:31,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:31,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:31,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:30:31,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:31,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-26 22:30:31,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:31,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:31,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:31,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:30:31,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:31,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:30:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:31,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:31,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:31,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:30:31,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:31,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-26 22:30:31,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:31,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:31,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:31,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:30:31,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 369 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:30:31,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367564392] [2020-10-26 22:30:31,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:31,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:30:31,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463494007] [2020-10-26 22:30:31,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:30:31,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:31,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:30:31,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:30:31,766 INFO L87 Difference]: Start difference. First operand 3118 states and 3667 transitions. Second operand 7 states. [2020-10-26 22:30:33,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:33,944 INFO L93 Difference]: Finished difference Result 6677 states and 7893 transitions. [2020-10-26 22:30:33,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:30:33,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 396 [2020-10-26 22:30:33,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:33,963 INFO L225 Difference]: With dead ends: 6677 [2020-10-26 22:30:33,963 INFO L226 Difference]: Without dead ends: 3708 [2020-10-26 22:30:33,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:30:33,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3708 states. [2020-10-26 22:30:34,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3708 to 3412. [2020-10-26 22:30:34,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3412 states. [2020-10-26 22:30:34,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 4045 transitions. [2020-10-26 22:30:34,065 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 4045 transitions. Word has length 396 [2020-10-26 22:30:34,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:34,066 INFO L481 AbstractCegarLoop]: Abstraction has 3412 states and 4045 transitions. [2020-10-26 22:30:34,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:30:34,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 4045 transitions. [2020-10-26 22:30:34,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2020-10-26 22:30:34,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:34,076 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:34,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:30:34,076 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:34,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:34,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1391582712, now seen corresponding path program 1 times [2020-10-26 22:30:34,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:34,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047193342] [2020-10-26 22:30:34,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:34,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:34,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:36,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:36,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 422 [2020-10-26 22:30:36,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:30:36,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2237 [2020-10-26 22:30:36,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:36,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:36,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:30:36,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 22:30:36,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:36,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:36,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:36,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:36,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:36,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:30:36,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:36,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:36,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:36,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:36,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:36,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:36,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:36,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:36,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:30:36,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:36,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 22:30:36,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:36,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:36,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:36,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:36,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:36,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:30:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:36,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:36,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:36,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:30:36,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:36,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 22:30:36,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:36,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:36,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:30:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:36,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:36,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:36,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:30:36,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-26 22:30:36,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:30:36,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:37,098 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 177 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-26 22:30:37,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047193342] [2020-10-26 22:30:37,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:37,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:30:37,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361944192] [2020-10-26 22:30:37,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:30:37,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:37,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:30:37,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:30:37,101 INFO L87 Difference]: Start difference. First operand 3412 states and 4045 transitions. Second operand 5 states. [2020-10-26 22:30:38,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:38,136 INFO L93 Difference]: Finished difference Result 6543 states and 7736 transitions. [2020-10-26 22:30:38,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:30:38,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 406 [2020-10-26 22:30:38,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:38,139 INFO L225 Difference]: With dead ends: 6543 [2020-10-26 22:30:38,139 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:30:38,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:30:38,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:30:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:30:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:30:38,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:30:38,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 406 [2020-10-26 22:30:38,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:38,153 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:30:38,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:30:38,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:30:38,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:30:38,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:30:38,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:30:38,420 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 149 [2020-10-26 22:30:38,919 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 149 [2020-10-26 22:30:39,425 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 40 [2020-10-26 22:30:40,147 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 57 [2020-10-26 22:30:40,410 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 43 [2020-10-26 22:30:40,785 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 40 [2020-10-26 22:30:40,788 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:30:40,789 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:30:40,789 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:30:40,789 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:30:40,789 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:30:40,789 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:30:40,789 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:30:40,790 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:30:40,790 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:30:40,790 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:30:40,790 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:30:40,790 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:30:40,790 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:30:40,790 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:30:40,790 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:30:40,790 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:30:40,790 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:30:40,791 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:30:40,791 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:30:40,791 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:30:40,791 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,791 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,791 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,791 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,791 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,791 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,791 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:30:40,792 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:30:40,792 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:30:40,792 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:30:40,792 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:30:40,792 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:30:40,792 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:30:40,792 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:30:40,792 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:30:40,792 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:30:40,792 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:30:40,793 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:30:40,794 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:30:40,795 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:30:40,795 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:30:40,795 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:30:40,795 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:30:40,795 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:30:40,795 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:30:40,795 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:30:40,795 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:30:40,795 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,795 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,795 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:30:40,796 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:30:40,797 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:30:40,797 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:30:40,797 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:30:40,797 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,797 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,797 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,797 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,797 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,797 INFO L270 CegarLoopResult]: At program point L183(line 183) the Hoare annotation is: (and (or (not (= 0 |old(~a10~0)|)) (not (= 10 |old(~a19~0)|))) (or (not (= 3 |old(~a10~0)|)) (not (= 6 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a1~0)| 33)) (not (= ~a12~0 0))) (not (= |old(~a10~0)| 1)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 2 |old(~a10~0)|)) (not (= 8 |old(~a19~0)|))) [2020-10-26 22:30:40,797 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point L183-1(line 183) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,798 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:30:40,799 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:30:40,800 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:30:40,800 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:30:40,800 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,800 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,800 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,800 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,800 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:30:40,800 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,800 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,800 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:30:40,800 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:30:40,801 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:30:40,801 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:30:40,801 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:30:40,801 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:30:40,801 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:30:40,801 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:30:40,801 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:30:40,801 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:30:40,801 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:30:40,801 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:30:40,801 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:30:40,802 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,802 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,802 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,802 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,802 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,802 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,802 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:30:40,802 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse1 (= ~a1~0 |old(~a1~0)|)) (.cse2 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (and .cse1 (= ~a19~0 |old(~a19~0)|) .cse2))) (and (or .cse0 (not (= 8 |old(~a19~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse0) (or .cse0 (not (= 0 |old(~a10~0)|)) (not (= 10 |old(~a19~0)|))) (or .cse0 (not (= |old(~a10~0)| 1))) (or .cse0 (not (<= |old(~a1~0)| 23))) (or .cse0 (not (= 2 |old(~a10~0)|))) (or (not (= 3 |old(~a10~0)|)) (not (= 6 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a1~0)| 33)) (and .cse1 (= ~a19~0 6) .cse2) (not (= ~a12~0 0)))))) [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:30:40,803 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:30:40,804 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,805 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,806 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,806 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:30:40,806 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:30:40,806 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:30:40,806 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:30:40,806 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:30:40,806 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:30:40,806 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:30:40,806 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:30:40,806 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:30:40,806 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:30:40,807 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:30:40,807 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:30:40,807 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,807 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,807 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,807 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,807 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,807 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:30:40,807 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:30:40,807 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-26 22:30:40,807 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:30:40,808 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:30:40,808 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 0 |old(~a10~0)|))) [2020-10-26 22:30:40,808 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:30:40,808 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (= ~a19~0 8) (= ~a10~0 1) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and (= ~a10~0 3) (= 14 ~a4~0) (<= ~a1~0 33) (= ~a12~0 0) (= ~a19~0 6)) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) (= ~a19~0 10)) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|)) [2020-10-26 22:30:40,808 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:30:40,808 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:30:40,808 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (= ~a19~0 8) (= ~a10~0 1) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and (= ~a10~0 3) (= 14 ~a4~0) (<= ~a1~0 33) (= ~a12~0 0) (= ~a19~0 6)) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) (= ~a19~0 10)) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|)) [2020-10-26 22:30:40,808 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:30:40,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:30:40 BoogieIcfgContainer [2020-10-26 22:30:40,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:30:40,839 INFO L168 Benchmark]: Toolchain (without parser) took 72176.79 ms. Allocated memory was 156.2 MB in the beginning and 1.0 GB in the end (delta: 872.4 MB). Free memory was 130.3 MB in the beginning and 981.8 MB in the end (delta: -851.5 MB). Peak memory consumption was 616.0 MB. Max. memory is 8.0 GB. [2020-10-26 22:30:40,839 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory was 128.6 MB in the beginning and 128.5 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:30:40,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.13 ms. Allocated memory is still 156.2 MB. Free memory was 129.6 MB in the beginning and 136.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 31.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:30:40,841 INFO L168 Benchmark]: Boogie Preprocessor took 189.70 ms. Allocated memory is still 156.2 MB. Free memory was 136.1 MB in the beginning and 131.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:30:40,847 INFO L168 Benchmark]: RCFGBuilder took 1653.88 ms. Allocated memory is still 156.2 MB. Free memory was 131.5 MB in the beginning and 113.8 MB in the end (delta: 17.7 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. [2020-10-26 22:30:40,849 INFO L168 Benchmark]: TraceAbstraction took 69531.04 ms. Allocated memory was 156.2 MB in the beginning and 1.0 GB in the end (delta: 872.4 MB). Free memory was 113.8 MB in the beginning and 981.8 MB in the end (delta: -868.0 MB). Peak memory consumption was 598.4 MB. Max. memory is 8.0 GB. [2020-10-26 22:30:40,854 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory was 128.6 MB in the beginning and 128.5 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 787.13 ms. Allocated memory is still 156.2 MB. Free memory was 129.6 MB in the beginning and 136.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 31.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 189.70 ms. Allocated memory is still 156.2 MB. Free memory was 136.1 MB in the beginning and 131.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1653.88 ms. Allocated memory is still 156.2 MB. Free memory was 131.5 MB in the beginning and 113.8 MB in the end (delta: 17.7 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 69531.04 ms. Allocated memory was 156.2 MB in the beginning and 1.0 GB in the end (delta: 872.4 MB). Free memory was 113.8 MB in the beginning and 981.8 MB in the end (delta: -868.0 MB). Peak memory consumption was 598.4 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: 584]: Loop Invariant Derived loop invariant: ((((((((a19 == 8 || a10 == 1) || a10 == 2) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || ((((a10 == 3 && 14 == a4) && a1 <= 33) && a12 == 0) && a19 == 6)) || !(0 == \old(a10))) || (a10 == 0 && a19 == 10)) || a1 <= 23) || a19 == \old(a19) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 66.7s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 26.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 355 SDtfs, 4625 SDslu, 420 SDs, 0 SdLazy, 11781 SolverSat, 1438 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3412occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 1125 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 375 PreInvPairs, 427 NumberOfFragments, 375 HoareAnnotationTreeSize, 375 FomulaSimplifications, 57003 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 5069 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 37.1s InterpolantComputationTime, 3386 NumberOfCodeBlocks, 3386 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3373 ConstructedInterpolants, 0 QuantifiedInterpolants, 2632117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 2925/3227 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...