/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:32:00,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:32:00,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:32:00,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:32:00,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:32:00,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:32:00,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:32:00,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:32:00,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:32:00,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:32:00,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:32:00,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:32:00,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:32:00,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:32:00,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:32:00,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:32:00,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:32:00,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:32:00,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:32:00,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:32:00,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:32:00,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:32:00,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:32:00,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:32:00,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:32:00,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:32:00,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:32:00,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:32:00,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:32:00,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:32:00,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:32:00,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:32:00,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:32:00,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:32:00,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:32:00,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:32:00,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:32:00,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:32:00,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:32:00,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:32:00,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:32:00,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:32:00,713 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:32:00,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:32:00,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:32:00,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:32:00,715 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:32:00,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:32:00,716 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:32:00,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:32:00,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:32:00,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:32:00,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:32:00,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:32:00,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:32:00,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:32:00,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:32:00,718 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:32:00,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:32:00,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:32:00,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:32:00,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:32:00,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:32:00,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:32:00,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:32:00,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:32:00,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:32:00,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:32:00,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:32:00,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:32:00,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:32:00,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:32:01,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:32:01,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:32:01,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:32:01,117 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:32:01,118 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:32:01,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label14.c [2020-10-26 20:32:01,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc303550d/433c458f07804bf6ae9f854b2ead907a/FLAG7a13258a1 [2020-10-26 20:32:01,974 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:32:01,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label14.c [2020-10-26 20:32:01,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc303550d/433c458f07804bf6ae9f854b2ead907a/FLAG7a13258a1 [2020-10-26 20:32:02,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc303550d/433c458f07804bf6ae9f854b2ead907a [2020-10-26 20:32:02,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:32:02,199 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:32:02,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:32:02,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:32:02,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:32:02,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:32:02" (1/1) ... [2020-10-26 20:32:02,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de5b2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:02, skipping insertion in model container [2020-10-26 20:32:02,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:32:02" (1/1) ... [2020-10-26 20:32:02,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:32:02,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:32:02,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:32:02,728 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:32:02,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:32:03,005 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:32:03,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03 WrapperNode [2020-10-26 20:32:03,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:32:03,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:32:03,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:32:03,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:32:03,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:32:03,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:32:03,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:32:03,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:32:03,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:32:03,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:32:03,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:32:03,279 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:32:03,279 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:32:03,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:32:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:32:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:32:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:32:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:32:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:32:03,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:32:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:32:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:32:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:32:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:32:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:32:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:32:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:32:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:32:04,747 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:32:04,748 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:32:04,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:32:04 BoogieIcfgContainer [2020-10-26 20:32:04,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:32:04,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:32:04,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:32:04,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:32:04,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:32:02" (1/3) ... [2020-10-26 20:32:04,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbd485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:32:04, skipping insertion in model container [2020-10-26 20:32:04,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (2/3) ... [2020-10-26 20:32:04,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbd485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:32:04, skipping insertion in model container [2020-10-26 20:32:04,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:32:04" (3/3) ... [2020-10-26 20:32:04,760 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label14.c [2020-10-26 20:32:04,772 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:32:04,778 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:32:04,812 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:32:04,840 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:32:04,841 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:32:04,841 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:32:04,841 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:32:04,841 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:32:04,841 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:32:04,841 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:32:04,841 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:32:04,866 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:32:04,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-26 20:32:04,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:04,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:04,883 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:04,890 INFO L82 PathProgramCache]: Analyzing trace with hash 950448249, now seen corresponding path program 1 times [2020-10-26 20:32:04,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:04,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551211384] [2020-10-26 20:32:04,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:05,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:05,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:07,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:07,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-26 20:32:07,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:07,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2449 [2020-10-26 20:32:07,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:07,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:32:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:32:07,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:32:08,369 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-26 20:32:08,559 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-10-26 20:32:08,777 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-10-26 20:32:08,970 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 44 [2020-10-26 20:32:09,159 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2020-10-26 20:32:09,308 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2020-10-26 20:32:09,446 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 36 [2020-10-26 20:32:09,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:09,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:09,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:09,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:09,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:32:09,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:32:09,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551211384] [2020-10-26 20:32:09,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:32:09,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:32:09,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495014336] [2020-10-26 20:32:09,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:32:09,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:09,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:32:09,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:09,995 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:32:10,207 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-26 20:32:10,448 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-26 20:32:10,701 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-26 20:32:10,983 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-26 20:32:11,560 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-10-26 20:32:12,172 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2020-10-26 20:32:12,941 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 136 [2020-10-26 20:32:13,800 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 133 [2020-10-26 20:32:14,419 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 128 [2020-10-26 20:32:15,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:15,854 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:32:15,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:32:15,857 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 138 [2020-10-26 20:32:15,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:15,872 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:32:15,872 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:32:15,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:32:15,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:32:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:32:15,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:32:15,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:32:15,971 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 138 [2020-10-26 20:32:15,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:15,972 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:32:15,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:32:15,972 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:32:15,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-26 20:32:15,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:15,978 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:15,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:32:15,978 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:15,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:15,979 INFO L82 PathProgramCache]: Analyzing trace with hash -950153705, now seen corresponding path program 1 times [2020-10-26 20:32:15,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:15,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130683997] [2020-10-26 20:32:15,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:16,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:17,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:17,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-26 20:32:17,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:17,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1775 [2020-10-26 20:32:17,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:17,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:17,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:17,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-26 20:32:17,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:32:18,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:18,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:18,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:18,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:18,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:18,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:32:18,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:18,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:18,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:18,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:18,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:18,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:18,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:18,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:18,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:32:18,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:32:18,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:18,165 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:32:18,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130683997] [2020-10-26 20:32:18,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:18,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:32:18,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385619094] [2020-10-26 20:32:18,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:32:18,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:18,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:32:18,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:32:18,173 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-26 20:32:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:19,606 INFO L93 Difference]: Finished difference Result 485 states and 696 transitions. [2020-10-26 20:32:19,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:32:19,607 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-10-26 20:32:19,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:19,614 INFO L225 Difference]: With dead ends: 485 [2020-10-26 20:32:19,614 INFO L226 Difference]: Without dead ends: 345 [2020-10-26 20:32:19,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:19,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-10-26 20:32:19,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2020-10-26 20:32:19,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-10-26 20:32:19,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 467 transitions. [2020-10-26 20:32:19,654 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 467 transitions. Word has length 146 [2020-10-26 20:32:19,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:19,655 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 467 transitions. [2020-10-26 20:32:19,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:32:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 467 transitions. [2020-10-26 20:32:19,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-26 20:32:19,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:19,660 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:19,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:32:19,661 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:19,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:19,662 INFO L82 PathProgramCache]: Analyzing trace with hash 890514876, now seen corresponding path program 1 times [2020-10-26 20:32:19,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:19,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338733383] [2020-10-26 20:32:19,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:19,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:19,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:19,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:24,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:24,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-26 20:32:24,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:24,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-26 20:32:24,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 20:32:24,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:24,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:24,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:24,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:24,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:24,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:24,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:32:24,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:24,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:24,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:24,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:24,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:24,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:24,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:24,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:24,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:24,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:24,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:24,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:32:24,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:24,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:24,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:24,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:24,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:32:24,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:24,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:32:24,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:24,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:24,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:24,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:32:24,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:32:25,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338733383] [2020-10-26 20:32:25,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:25,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:32:25,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805327884] [2020-10-26 20:32:25,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:25,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:25,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:25,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:25,023 INFO L87 Difference]: Start difference. First operand 343 states and 467 transitions. Second operand 7 states. [2020-10-26 20:32:26,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:26,675 INFO L93 Difference]: Finished difference Result 922 states and 1314 transitions. [2020-10-26 20:32:26,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:32:26,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 155 [2020-10-26 20:32:26,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:26,682 INFO L225 Difference]: With dead ends: 922 [2020-10-26 20:32:26,682 INFO L226 Difference]: Without dead ends: 645 [2020-10-26 20:32:26,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:26,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2020-10-26 20:32:26,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 623. [2020-10-26 20:32:26,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2020-10-26 20:32:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 836 transitions. [2020-10-26 20:32:26,751 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 836 transitions. Word has length 155 [2020-10-26 20:32:26,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:26,752 INFO L481 AbstractCegarLoop]: Abstraction has 623 states and 836 transitions. [2020-10-26 20:32:26,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 836 transitions. [2020-10-26 20:32:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-26 20:32:26,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:26,757 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:26,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:32:26,757 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:26,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:26,758 INFO L82 PathProgramCache]: Analyzing trace with hash 953127477, now seen corresponding path program 1 times [2020-10-26 20:32:26,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:26,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429137692] [2020-10-26 20:32:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:26,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:26,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:26,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:31,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-26 20:32:31,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:31,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-26 20:32:31,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:31,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:31,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:31,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:32:31,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:32:31,961 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:32:31,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:31,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:31,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:31,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:31,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:32:32,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:32,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:32,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:32,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:32,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:32,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:32,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:32,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:32,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:32,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:32:32,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:32,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:32,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:32,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:32,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:32,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:32,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:32,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:32:32,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:32,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:32:32,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:32,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:32,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:32,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:32:32,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:32,207 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:32:32,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429137692] [2020-10-26 20:32:32,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:32,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:32,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828079811] [2020-10-26 20:32:32,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:32,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:32,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:32,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:32,211 INFO L87 Difference]: Start difference. First operand 623 states and 836 transitions. Second operand 8 states. [2020-10-26 20:32:33,322 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:32:34,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:34,112 INFO L93 Difference]: Finished difference Result 1762 states and 2439 transitions. [2020-10-26 20:32:34,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:32:34,114 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 162 [2020-10-26 20:32:34,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:34,125 INFO L225 Difference]: With dead ends: 1762 [2020-10-26 20:32:34,126 INFO L226 Difference]: Without dead ends: 1205 [2020-10-26 20:32:34,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:34,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2020-10-26 20:32:34,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1197. [2020-10-26 20:32:34,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-10-26 20:32:34,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1582 transitions. [2020-10-26 20:32:34,198 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1582 transitions. Word has length 162 [2020-10-26 20:32:34,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:34,198 INFO L481 AbstractCegarLoop]: Abstraction has 1197 states and 1582 transitions. [2020-10-26 20:32:34,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:34,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1582 transitions. [2020-10-26 20:32:34,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-26 20:32:34,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:34,207 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:34,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:32:34,208 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:34,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:34,208 INFO L82 PathProgramCache]: Analyzing trace with hash 285417417, now seen corresponding path program 1 times [2020-10-26 20:32:34,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:34,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570817762] [2020-10-26 20:32:34,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:34,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-26 20:32:39,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:39,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-26 20:32:39,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:32:39,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:39,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:39,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:39,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:39,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:39,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:39,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:39,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:39,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:39,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:39,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:39,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:39,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:32:39,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:39,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:39,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:39,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:32:39,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:39,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:32:39,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:39,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:39,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:32:39,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:32:39,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570817762] [2020-10-26 20:32:39,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:39,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:39,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133399681] [2020-10-26 20:32:39,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:39,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:39,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:39,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:39,723 INFO L87 Difference]: Start difference. First operand 1197 states and 1582 transitions. Second operand 8 states. [2020-10-26 20:32:39,883 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:32:41,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:41,703 INFO L93 Difference]: Finished difference Result 2350 states and 3137 transitions. [2020-10-26 20:32:41,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:41,704 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2020-10-26 20:32:41,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:41,713 INFO L225 Difference]: With dead ends: 2350 [2020-10-26 20:32:41,713 INFO L226 Difference]: Without dead ends: 1219 [2020-10-26 20:32:41,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:32:41,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-10-26 20:32:41,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1211. [2020-10-26 20:32:41,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-10-26 20:32:41,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1593 transitions. [2020-10-26 20:32:41,780 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1593 transitions. Word has length 168 [2020-10-26 20:32:41,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:41,781 INFO L481 AbstractCegarLoop]: Abstraction has 1211 states and 1593 transitions. [2020-10-26 20:32:41,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:41,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1593 transitions. [2020-10-26 20:32:41,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-26 20:32:41,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:41,787 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:41,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:32:41,787 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:41,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:41,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1813646761, now seen corresponding path program 1 times [2020-10-26 20:32:41,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:41,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735068904] [2020-10-26 20:32:41,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:41,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:41,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:41,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:44,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:44,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-26 20:32:46,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:32:46,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-26 20:32:46,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:46,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:32:46,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:32:46,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:46,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:46,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:46,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:47,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:47,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:47,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:47,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:47,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:47,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:32:47,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:32:47,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:47,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:47,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:47,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:47,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:47,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:47,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:47,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:32:47,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:47,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:32:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:47,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:47,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:47,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:32:47,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:47,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:32:47,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:32:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:47,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:47,133 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 32 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 20:32:47,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735068904] [2020-10-26 20:32:47,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:47,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:47,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511597392] [2020-10-26 20:32:47,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:47,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:47,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:47,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:47,137 INFO L87 Difference]: Start difference. First operand 1211 states and 1593 transitions. Second operand 7 states. [2020-10-26 20:32:49,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:49,383 INFO L93 Difference]: Finished difference Result 2773 states and 3699 transitions. [2020-10-26 20:32:49,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:32:49,384 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-10-26 20:32:49,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:49,393 INFO L225 Difference]: With dead ends: 2773 [2020-10-26 20:32:49,393 INFO L226 Difference]: Without dead ends: 1628 [2020-10-26 20:32:49,397 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 20:32:49,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2020-10-26 20:32:49,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1479. [2020-10-26 20:32:49,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1479 states. [2020-10-26 20:32:49,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1855 transitions. [2020-10-26 20:32:49,458 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1855 transitions. Word has length 170 [2020-10-26 20:32:49,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:49,458 INFO L481 AbstractCegarLoop]: Abstraction has 1479 states and 1855 transitions. [2020-10-26 20:32:49,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:49,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1855 transitions. [2020-10-26 20:32:49,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-26 20:32:49,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:49,464 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:49,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:32:49,465 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:49,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:49,465 INFO L82 PathProgramCache]: Analyzing trace with hash 499528828, now seen corresponding path program 1 times [2020-10-26 20:32:49,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:49,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356369948] [2020-10-26 20:32:49,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:49,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:50,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:51,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:51,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-26 20:32:51,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:51,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2422 [2020-10-26 20:32:51,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:51,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:51,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:51,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:32:51,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:52,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:52,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:52,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:52,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:52,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:52,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:52,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:52,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:52,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:52,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:52,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:52,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:52,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:52,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:52,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:52,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:32:52,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:52,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:52,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:52,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:52,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:52,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:52,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:52,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:52,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:52,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:52,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:32:52,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:52,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:52,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:52,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:32:52,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:32:52,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356369948] [2020-10-26 20:32:52,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:52,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:32:52,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050307357] [2020-10-26 20:32:52,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:52,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:52,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:52,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:52,234 INFO L87 Difference]: Start difference. First operand 1479 states and 1855 transitions. Second operand 7 states. [2020-10-26 20:32:52,371 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:32:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:53,932 INFO L93 Difference]: Finished difference Result 2795 states and 3551 transitions. [2020-10-26 20:32:53,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:32:53,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-10-26 20:32:53,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:53,943 INFO L225 Difference]: With dead ends: 2795 [2020-10-26 20:32:53,943 INFO L226 Difference]: Without dead ends: 1791 [2020-10-26 20:32:53,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:32:53,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2020-10-26 20:32:54,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1761. [2020-10-26 20:32:54,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1761 states. [2020-10-26 20:32:54,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2160 transitions. [2020-10-26 20:32:54,018 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 2160 transitions. Word has length 169 [2020-10-26 20:32:54,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:54,018 INFO L481 AbstractCegarLoop]: Abstraction has 1761 states and 2160 transitions. [2020-10-26 20:32:54,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:54,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 2160 transitions. [2020-10-26 20:32:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-26 20:32:54,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:54,026 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:54,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:32:54,026 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:54,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:54,027 INFO L82 PathProgramCache]: Analyzing trace with hash 2094328662, now seen corresponding path program 1 times [2020-10-26 20:32:54,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:54,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456823990] [2020-10-26 20:32:54,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:54,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:54,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:54,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:55,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:55,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:57,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-26 20:32:57,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:32:57,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3407 [2020-10-26 20:32:57,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:57,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:57,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:57,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:32:57,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:57,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:57,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:57,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:57,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:32:57,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:57,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:57,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:57,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:57,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:57,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:57,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:57,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:57,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:57,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:32:57,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:57,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:57,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:57,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:57,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:57,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:32:57,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:57,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:57,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:32:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:57,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:57,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:57,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:57,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:32:57,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:57,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:57,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:57,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:57,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:32:57,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456823990] [2020-10-26 20:32:57,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:57,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:57,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220692087] [2020-10-26 20:32:57,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:57,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:57,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:57,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:57,851 INFO L87 Difference]: Start difference. First operand 1761 states and 2160 transitions. Second operand 8 states. [2020-10-26 20:32:59,244 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:32:59,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:59,791 INFO L93 Difference]: Finished difference Result 3063 states and 3717 transitions. [2020-10-26 20:32:59,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:59,792 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2020-10-26 20:32:59,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:59,801 INFO L225 Difference]: With dead ends: 3063 [2020-10-26 20:32:59,801 INFO L226 Difference]: Without dead ends: 1626 [2020-10-26 20:32:59,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:32:59,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2020-10-26 20:32:59,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1207. [2020-10-26 20:32:59,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2020-10-26 20:32:59,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1382 transitions. [2020-10-26 20:32:59,856 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1382 transitions. Word has length 181 [2020-10-26 20:32:59,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:59,856 INFO L481 AbstractCegarLoop]: Abstraction has 1207 states and 1382 transitions. [2020-10-26 20:32:59,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:59,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1382 transitions. [2020-10-26 20:32:59,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-26 20:32:59,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:59,862 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:59,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:32:59,862 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:59,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:59,863 INFO L82 PathProgramCache]: Analyzing trace with hash -700280231, now seen corresponding path program 1 times [2020-10-26 20:32:59,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:59,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030380085] [2020-10-26 20:32:59,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:59,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:59,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:01,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:01,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:02,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:02,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-26 20:33:02,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2719 [2020-10-26 20:33:02,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:02,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:02,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:02,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:02,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:02,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:02,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:02,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:02,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:02,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:02,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:02,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:02,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:02,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:02,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:02,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:02,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:02,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:02,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:33:02,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:02,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:02,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:02,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:02,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:02,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:02,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:33:02,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:02,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:02,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:33:02,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:02,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:33:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:02,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:02,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:02,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:02,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:02,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:02,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:02,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:02,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:33:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:02,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:02,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:02,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:02,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:02,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:02,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:02,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:02,965 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:33:02,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030380085] [2020-10-26 20:33:02,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:02,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:02,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934839507] [2020-10-26 20:33:02,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:02,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:02,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:02,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:02,968 INFO L87 Difference]: Start difference. First operand 1207 states and 1382 transitions. Second operand 7 states. [2020-10-26 20:33:04,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:04,530 INFO L93 Difference]: Finished difference Result 3057 states and 3587 transitions. [2020-10-26 20:33:04,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:33:04,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-10-26 20:33:04,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:04,542 INFO L225 Difference]: With dead ends: 3057 [2020-10-26 20:33:04,542 INFO L226 Difference]: Without dead ends: 1773 [2020-10-26 20:33:04,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:33:04,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2020-10-26 20:33:04,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1761. [2020-10-26 20:33:04,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1761 states. [2020-10-26 20:33:04,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2001 transitions. [2020-10-26 20:33:04,609 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 2001 transitions. Word has length 194 [2020-10-26 20:33:04,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:04,610 INFO L481 AbstractCegarLoop]: Abstraction has 1761 states and 2001 transitions. [2020-10-26 20:33:04,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:04,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 2001 transitions. [2020-10-26 20:33:04,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-26 20:33:04,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:04,617 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:04,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:33:04,617 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:04,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:04,618 INFO L82 PathProgramCache]: Analyzing trace with hash 427599860, now seen corresponding path program 1 times [2020-10-26 20:33:04,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:04,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [773010518] [2020-10-26 20:33:04,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:04,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:04,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:04,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:04,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:09,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-26 20:33:09,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:09,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-26 20:33:09,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:09,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:09,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:09,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:33:09,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:09,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:09,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:09,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:09,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:09,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:09,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:09,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:09,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:09,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:09,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:09,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:09,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:33:09,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:09,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:09,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:09,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:33:09,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:09,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:09,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:09,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:33:09,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:09,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:33:09,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:09,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:09,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:09,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:33:09,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:09,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:33:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:09,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:09,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:09,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:09,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:09,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:09,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:09,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:33:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:09,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:09,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:33:09,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:09,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:09,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:09,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:09,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:33:09,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:09,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:10,011 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 68 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:33:10,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [773010518] [2020-10-26 20:33:10,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:10,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:10,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023384596] [2020-10-26 20:33:10,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:10,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:10,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:10,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:10,013 INFO L87 Difference]: Start difference. First operand 1761 states and 2001 transitions. Second operand 7 states. [2020-10-26 20:33:10,151 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:33:11,390 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:33:11,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:11,728 INFO L93 Difference]: Finished difference Result 3466 states and 3957 transitions. [2020-10-26 20:33:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:33:11,729 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 205 [2020-10-26 20:33:11,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:11,737 INFO L225 Difference]: With dead ends: 3466 [2020-10-26 20:33:11,737 INFO L226 Difference]: Without dead ends: 1771 [2020-10-26 20:33:11,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:11,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2020-10-26 20:33:11,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1767. [2020-10-26 20:33:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-10-26 20:33:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 1995 transitions. [2020-10-26 20:33:11,795 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 1995 transitions. Word has length 205 [2020-10-26 20:33:11,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:11,796 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 1995 transitions. [2020-10-26 20:33:11,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 1995 transitions. [2020-10-26 20:33:11,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-26 20:33:11,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:11,803 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:11,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:33:11,803 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:11,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:11,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1037745214, now seen corresponding path program 1 times [2020-10-26 20:33:11,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:11,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372547567] [2020-10-26 20:33:11,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:11,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:16,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-26 20:33:16,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:16,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-26 20:33:16,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:33:16,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:16,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:16,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:17,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:33:17,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:17,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:17,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:17,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:17,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:17,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-26 20:33:17,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:17,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:17,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:33:17,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:17,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:33:17,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:17,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:17,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:17,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:33:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:33:17,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:17,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:17,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:33:17,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:17,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,426 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 89 proven. 36 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:33:17,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372547567] [2020-10-26 20:33:17,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:17,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:33:17,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942338997] [2020-10-26 20:33:17,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:17,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:17,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:17,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:17,428 INFO L87 Difference]: Start difference. First operand 1767 states and 1995 transitions. Second operand 8 states. [2020-10-26 20:33:19,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:19,029 INFO L93 Difference]: Finished difference Result 3482 states and 3949 transitions. [2020-10-26 20:33:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:33:19,029 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 223 [2020-10-26 20:33:19,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:19,037 INFO L225 Difference]: With dead ends: 3482 [2020-10-26 20:33:19,037 INFO L226 Difference]: Without dead ends: 1781 [2020-10-26 20:33:19,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:33:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2020-10-26 20:33:19,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1769. [2020-10-26 20:33:19,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1769 states. [2020-10-26 20:33:19,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 1987 transitions. [2020-10-26 20:33:19,092 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 1987 transitions. Word has length 223 [2020-10-26 20:33:19,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:19,092 INFO L481 AbstractCegarLoop]: Abstraction has 1769 states and 1987 transitions. [2020-10-26 20:33:19,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:19,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 1987 transitions. [2020-10-26 20:33:19,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-26 20:33:19,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:19,100 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:19,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:33:19,100 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:19,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:19,101 INFO L82 PathProgramCache]: Analyzing trace with hash -513907571, now seen corresponding path program 1 times [2020-10-26 20:33:19,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:19,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466687592] [2020-10-26 20:33:19,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:19,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:19,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:21,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:21,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:23,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:23,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-26 20:33:23,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:23,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4752 [2020-10-26 20:33:23,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:33:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:33:23,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:24,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:24,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:24,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:24,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:24,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:24,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:33:24,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:24,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:24,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:24,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:24,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:24,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:24,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:24,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:24,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:24,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:24,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:33:24,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:24,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:24,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:24,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:24,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:24,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:24,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:24,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:24,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:33:24,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:24,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:33:24,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:33:24,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:24,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:33:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:24,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:24,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:24,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:24,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:24,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:33:24,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:24,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:24,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:24,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:24,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:24,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:33:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:24,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:24,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:24,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:33:24,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:24,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:33:24,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:33:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:24,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 143 proven. 14 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-26 20:33:24,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466687592] [2020-10-26 20:33:24,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:24,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:24,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533903227] [2020-10-26 20:33:24,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:24,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:24,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:24,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:24,318 INFO L87 Difference]: Start difference. First operand 1769 states and 1987 transitions. Second operand 7 states. [2020-10-26 20:33:24,867 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:33:26,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:26,191 INFO L93 Difference]: Finished difference Result 4040 states and 4628 transitions. [2020-10-26 20:33:26,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:26,195 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 256 [2020-10-26 20:33:26,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:26,206 INFO L225 Difference]: With dead ends: 4040 [2020-10-26 20:33:26,206 INFO L226 Difference]: Without dead ends: 2200 [2020-10-26 20:33:26,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2020-10-26 20:33:26,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 2176. [2020-10-26 20:33:26,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2176 states. [2020-10-26 20:33:26,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 2430 transitions. [2020-10-26 20:33:26,280 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 2430 transitions. Word has length 256 [2020-10-26 20:33:26,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:26,281 INFO L481 AbstractCegarLoop]: Abstraction has 2176 states and 2430 transitions. [2020-10-26 20:33:26,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:26,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 2430 transitions. [2020-10-26 20:33:26,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-10-26 20:33:26,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:26,290 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:26,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:33:26,290 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:26,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:26,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1164145206, now seen corresponding path program 1 times [2020-10-26 20:33:26,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:26,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652998284] [2020-10-26 20:33:26,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:26,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:26,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:28,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:28,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:31,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-26 20:33:31,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:31,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-26 20:33:31,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:31,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:31,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:33:31,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:33:31,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:31,487 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:31,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:31,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:31,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:31,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:31,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:31,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:31,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:31,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:31,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:31,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:31,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:31,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:31,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:31,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:31,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-26 20:33:31,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:31,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:31,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:31,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:33:31,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:31,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:31,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:31,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:31,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:31,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-26 20:33:31,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:31,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:31,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:31,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:33:31,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:31,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:33:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:31,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:31,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:31,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:31,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:31,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:31,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:31,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:33:31,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:31,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:31,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:33:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:31,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:31,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:31,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:31,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:33:31,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:31,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:31,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:31,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:31,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:31,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:33:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:31,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:31,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:33:31,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:31,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:33:31,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:31,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:31,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:33:31,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:31,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 184 proven. 50 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-26 20:33:31,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652998284] [2020-10-26 20:33:31,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:31,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:31,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259938270] [2020-10-26 20:33:31,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:31,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:31,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:31,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:31,806 INFO L87 Difference]: Start difference. First operand 2176 states and 2430 transitions. Second operand 7 states. [2020-10-26 20:33:33,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:33,690 INFO L93 Difference]: Finished difference Result 4842 states and 5442 transitions. [2020-10-26 20:33:33,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:33,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 287 [2020-10-26 20:33:33,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:33,701 INFO L225 Difference]: With dead ends: 4842 [2020-10-26 20:33:33,702 INFO L226 Difference]: Without dead ends: 2732 [2020-10-26 20:33:33,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:33,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2020-10-26 20:33:33,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2724. [2020-10-26 20:33:33,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2724 states. [2020-10-26 20:33:33,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3033 transitions. [2020-10-26 20:33:33,774 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3033 transitions. Word has length 287 [2020-10-26 20:33:33,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:33,774 INFO L481 AbstractCegarLoop]: Abstraction has 2724 states and 3033 transitions. [2020-10-26 20:33:33,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:33,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3033 transitions. [2020-10-26 20:33:33,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-26 20:33:33,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:33,785 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:33,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:33:33,786 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:33,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:33,786 INFO L82 PathProgramCache]: Analyzing trace with hash -272934721, now seen corresponding path program 1 times [2020-10-26 20:33:33,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:33,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969466282] [2020-10-26 20:33:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:33,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:33,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:35,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:38,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:38,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-26 20:33:38,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:38,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-26 20:33:38,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:38,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:38,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:33:38,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:33:38,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:39,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:39,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:39,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:39,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:39,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:39,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:39,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:39,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:39,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:39,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:39,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:39,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:39,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:39,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:39,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 20:33:39,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:39,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:39,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:39,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:39,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:39,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:39,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:39,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:33:39,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:39,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:39,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:39,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:39,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:39,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:39,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:39,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:33:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:39,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:39,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:33:39,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:39,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:33:39,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:39,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:39,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:39,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:33:39,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:39,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:33:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:39,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:39,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:39,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:39,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:33:39,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:39,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:39,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:39,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:39,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:39,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 20:33:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:39,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:39,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:33:39,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:39,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:33:39,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:39,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:39,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:33:39,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:39,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:39,328 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 196 proven. 14 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-26 20:33:39,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969466282] [2020-10-26 20:33:39,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:39,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:39,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318685968] [2020-10-26 20:33:39,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:39,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:39,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:39,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:39,331 INFO L87 Difference]: Start difference. First operand 2724 states and 3033 transitions. Second operand 7 states. [2020-10-26 20:33:39,825 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:33:40,307 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:33:41,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:41,230 INFO L93 Difference]: Finished difference Result 5841 states and 6627 transitions. [2020-10-26 20:33:41,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:33:41,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 298 [2020-10-26 20:33:41,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:41,243 INFO L225 Difference]: With dead ends: 5841 [2020-10-26 20:33:41,243 INFO L226 Difference]: Without dead ends: 2623 [2020-10-26 20:33:41,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:41,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2020-10-26 20:33:41,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2581. [2020-10-26 20:33:41,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2581 states. [2020-10-26 20:33:41,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 2859 transitions. [2020-10-26 20:33:41,327 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 2859 transitions. Word has length 298 [2020-10-26 20:33:41,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:41,327 INFO L481 AbstractCegarLoop]: Abstraction has 2581 states and 2859 transitions. [2020-10-26 20:33:41,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:41,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 2859 transitions. [2020-10-26 20:33:41,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-26 20:33:41,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:41,337 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:41,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:33:41,338 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:41,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:41,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1404319870, now seen corresponding path program 1 times [2020-10-26 20:33:41,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:41,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626904596] [2020-10-26 20:33:41,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:41,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:41,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:41,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-26 20:33:44,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:44,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2653 [2020-10-26 20:33:44,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:33:44,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:33:44,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-26 20:33:44,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,269 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:44,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:33:44,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:33:44,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:33:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:44,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:33:44,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:33:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:44,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:33:44,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:33:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:44,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:44,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:33:44,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:33:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:33:44,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:44,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 20:33:44,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 20:33:44,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,525 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 214 proven. 29 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-26 20:33:44,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626904596] [2020-10-26 20:33:44,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:44,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:44,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324995934] [2020-10-26 20:33:44,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:44,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:44,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:44,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:44,527 INFO L87 Difference]: Start difference. First operand 2581 states and 2859 transitions. Second operand 7 states. [2020-10-26 20:33:46,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:46,441 INFO L93 Difference]: Finished difference Result 2763 states and 3140 transitions. [2020-10-26 20:33:46,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:33:46,443 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 309 [2020-10-26 20:33:46,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:46,455 INFO L225 Difference]: With dead ends: 2763 [2020-10-26 20:33:46,456 INFO L226 Difference]: Without dead ends: 2760 [2020-10-26 20:33:46,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:46,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2020-10-26 20:33:46,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2446. [2020-10-26 20:33:46,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2446 states. [2020-10-26 20:33:46,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 2689 transitions. [2020-10-26 20:33:46,529 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 2689 transitions. Word has length 309 [2020-10-26 20:33:46,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:46,530 INFO L481 AbstractCegarLoop]: Abstraction has 2446 states and 2689 transitions. [2020-10-26 20:33:46,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:46,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 2689 transitions. [2020-10-26 20:33:46,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-26 20:33:46,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:46,542 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:46,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:33:46,542 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:46,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:46,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1584962387, now seen corresponding path program 1 times [2020-10-26 20:33:46,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:46,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359754134] [2020-10-26 20:33:46,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:47,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:48,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:48,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 376 [2020-10-26 20:33:48,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:48,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1699 [2020-10-26 20:33:48,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:48,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:48,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-26 20:33:48,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-26 20:33:48,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:48,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:48,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:48,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:48,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:48,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:48,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:48,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:48,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:48,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:48,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:48,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:48,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:48,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:48,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:48,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:33:48,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:48,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:33:48,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:48,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:48,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:48,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:48,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:48,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:33:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:48,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:48,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:48,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:48,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:48,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:33:48,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:48,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:48,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:48,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:33:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:48,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:48,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:48,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:48,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:48,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:48,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:48,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:48,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:48,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:48,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:33:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:48,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:48,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:48,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:48,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:33:48,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:48,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:48,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:48,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:48,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:33:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:48,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:48,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:48,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:33:48,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:48,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:33:48,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:48,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:48,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:48,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-26 20:33:48,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:48,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 20:33:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:48,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:48,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:48,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:33:48,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:48,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 20:33:48,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:33:48,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:49,005 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-26 20:33:49,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359754134] [2020-10-26 20:33:49,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:49,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:33:49,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482764878] [2020-10-26 20:33:49,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:49,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:49,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:49,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:49,008 INFO L87 Difference]: Start difference. First operand 2446 states and 2689 transitions. Second operand 8 states. [2020-10-26 20:33:51,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:51,916 INFO L93 Difference]: Finished difference Result 5394 states and 5944 transitions. [2020-10-26 20:33:51,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:33:51,917 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 354 [2020-10-26 20:33:51,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:51,929 INFO L225 Difference]: With dead ends: 5394 [2020-10-26 20:33:51,929 INFO L226 Difference]: Without dead ends: 3014 [2020-10-26 20:33:51,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:33:51,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3014 states. [2020-10-26 20:33:52,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3014 to 2732. [2020-10-26 20:33:52,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2732 states. [2020-10-26 20:33:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 2964 transitions. [2020-10-26 20:33:52,015 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 2964 transitions. Word has length 354 [2020-10-26 20:33:52,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:52,016 INFO L481 AbstractCegarLoop]: Abstraction has 2732 states and 2964 transitions. [2020-10-26 20:33:52,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 2964 transitions. [2020-10-26 20:33:52,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-10-26 20:33:52,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:52,025 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:52,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 20:33:52,025 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:52,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:52,026 INFO L82 PathProgramCache]: Analyzing trace with hash 462319509, now seen corresponding path program 1 times [2020-10-26 20:33:52,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:52,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674990226] [2020-10-26 20:33:52,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:52,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:52,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:52,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:52,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 396 [2020-10-26 20:33:52,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:52,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 684 [2020-10-26 20:33:52,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:52,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:52,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-26 20:33:52,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-26 20:33:52,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:52,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:52,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:52,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:52,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:52,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:52,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:33:52,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:52,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:53,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:53,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:53,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:53,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:33:53,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:53,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:33:53,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:53,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:53,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:53,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:53,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:53,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:33:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:53,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:53,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:53,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:53,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:53,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:53,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:53,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:53,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:53,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:53,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:53,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:33:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:53,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:53,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:53,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:53,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:53,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:33:53,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:53,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:53,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:53,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:33:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:53,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:53,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:53,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:53,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:53,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:33:53,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:53,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:53,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:53,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:53,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:53,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:33:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:53,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:53,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:53,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:33:53,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:33:53,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:53,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-26 20:33:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:53,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:53,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:53,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:33:53,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:53,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:33:53,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-26 20:33:53,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:53,323 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-26 20:33:53,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674990226] [2020-10-26 20:33:53,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:53,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:33:53,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894105351] [2020-10-26 20:33:53,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:33:53,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:53,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:33:53,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:33:53,325 INFO L87 Difference]: Start difference. First operand 2732 states and 2964 transitions. Second operand 6 states. [2020-10-26 20:33:55,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:55,064 INFO L93 Difference]: Finished difference Result 5671 states and 6171 transitions. [2020-10-26 20:33:55,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:33:55,069 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 374 [2020-10-26 20:33:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:55,070 INFO L225 Difference]: With dead ends: 5671 [2020-10-26 20:33:55,070 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:33:55,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:55,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:33:55,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:33:55,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:33:55,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:33:55,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 374 [2020-10-26 20:33:55,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:55,081 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:33:55,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:33:55,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:33:55,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:33:55,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 20:33:55,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:33:56,226 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 231 [2020-10-26 20:33:56,562 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 209 [2020-10-26 20:33:56,855 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 43 [2020-10-26 20:33:59,266 WARN L193 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 264 DAG size of output: 100 [2020-10-26 20:34:00,335 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 213 DAG size of output: 76 [2020-10-26 20:34:01,532 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 191 DAG size of output: 76 [2020-10-26 20:34:02,123 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 70 [2020-10-26 20:34:02,129 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:34:02,129 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:34:02,130 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:34:02,130 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:34:02,130 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:02,131 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:34:02,131 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:02,131 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,131 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,131 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,131 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,132 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,132 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,132 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:34:02,132 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:34:02,132 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:34:02,132 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:34:02,132 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:34:02,132 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:34:02,132 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:34:02,132 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:34:02,132 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:34:02,133 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:34:02,133 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:34:02,133 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:34:02,133 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,133 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,133 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,133 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,133 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,133 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,133 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,134 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,135 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,135 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,135 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,135 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:34:02,135 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:34:02,135 INFO L270 CegarLoopResult]: At program point L571(line 571) the Hoare annotation is: (let ((.cse11 (not (<= |old(~a8~0)| 13))) (.cse9 (not (= |old(~a7~0)| |old(~a20~0)|))) (.cse8 (not (= 5 |old(~a16~0)|))) (.cse5 (not (= |old(~a20~0)| 1))) (.cse13 (not (= 6 |old(~a16~0)|))) (.cse14 (not (= |old(~a17~0)| 1))) (.cse1 (not (<= 15 |old(~a8~0)|))) (.cse4 (not (<= |old(~a16~0)| 4))) (.cse6 (not (= |old(~a21~0)| 1))) (.cse7 (not (= |old(~a7~0)| 0))) (.cse12 (not (<= |old(~a20~0)| 0))) (.cse0 (not (<= |old(~a21~0)| 1))) (.cse2 (not (<= 1 |old(~a21~0)|))) (.cse3 (not (= |old(~a7~0)| 1))) (.cse10 (not (= 0 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7) (or .cse0 .cse2 .cse3 .cse8) (or .cse0 .cse2 .cse4 .cse9 .cse7 .cse10) (or .cse3 .cse11 .cse4 .cse9) (or .cse0 .cse2 .cse8 .cse7 .cse12) (or .cse3 .cse11 .cse12) (or (not (= |old(~a8~0)| 13)) .cse0 .cse2 .cse7) (or .cse3 .cse13 .cse11) (or .cse14 .cse11 .cse5 .cse9 .cse8) (or .cse14 .cse3 .cse5 .cse6) (or .cse0 .cse2 .cse13 (= 14 |old(~a8~0)|) .cse7 .cse12) (or .cse14 .cse1 .cse4 .cse6 .cse7 .cse12) (or .cse0 (not (= |old(~a17~0)| |old(~a20~0)|)) .cse2 .cse3 .cse10))) [2020-10-26 20:34:02,135 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:34:02,135 INFO L274 CegarLoopResult]: For program point L571-1(line 571) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:34:02,136 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:34:02,137 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:34:02,138 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:34:02,138 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,138 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,138 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,138 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,138 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,138 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:34:02,138 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:34:02,138 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:34:02,138 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:34:02,138 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:34:02,139 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:34:02,139 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:34:02,139 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:34:02,139 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:34:02,139 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:34:02,139 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:34:02,139 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:34:02,139 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:34:02,139 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,139 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,139 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,140 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,140 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,140 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:34:02,140 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:34:02,140 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:34:02,140 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,140 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,140 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:34:02,140 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:34:02,140 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:34:02,140 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:34:02,141 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:34:02,141 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:34:02,141 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,141 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,141 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,141 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,141 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:34:02,141 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,141 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:34:02,141 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:34:02,141 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:34:02,142 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:34:02,142 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:34:02,142 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:34:02,142 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:34:02,142 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:34:02,142 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:34:02,142 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:34:02,142 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:34:02,142 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:34:02,142 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:34:02,142 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:34:02,143 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:34:02,144 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,144 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,144 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse25 (= ~a7~0 |old(~a7~0)|)) (.cse18 (= ~a21~0 |old(~a21~0)|)) (.cse12 (<= ~a21~0 1)) (.cse13 (<= 1 ~a21~0)) (.cse9 (= ~a17~0 |old(~a17~0)|)) (.cse30 (= ~a21~0 1)) (.cse10 (= ~a20~0 |old(~a20~0)|)) (.cse19 (= ~a16~0 |old(~a16~0)|)) (.cse11 (= ~a8~0 |old(~a8~0)|)) (.cse15 (= ~a7~0 0))) (let ((.cse20 (= ~a20~0 ~a7~0)) (.cse14 (= 5 ~a16~0)) (.cse16 (not (= 5 |old(~a16~0)|))) (.cse5 (and .cse9 .cse30 .cse10 .cse19 .cse11 .cse15)) (.cse23 (not (= |old(~a7~0)| |old(~a20~0)|))) (.cse4 (not (= 0 |old(~a17~0)|))) (.cse27 (and .cse9 .cse10 .cse19 .cse11 .cse12 .cse13 .cse15)) (.cse28 (not (= 6 |old(~a16~0)|))) (.cse21 (not (<= |old(~a8~0)| 13))) (.cse29 (and .cse25 .cse9 .cse18 .cse10 .cse19 .cse11)) (.cse17 (not (<= |old(~a20~0)| 0))) (.cse8 (not (= |old(~a7~0)| 0))) (.cse0 (not (<= |old(~a21~0)| 1))) (.cse26 (not (<= 15 |old(~a8~0)|))) (.cse1 (not (<= 1 |old(~a21~0)|))) (.cse3 (and .cse25 .cse9 .cse10 .cse19 .cse11 .cse12 .cse13)) (.cse22 (not (<= |old(~a16~0)| 4))) (.cse24 (not (= |old(~a17~0)| 1))) (.cse2 (not (= |old(~a7~0)| 1))) (.cse6 (not (= |old(~a20~0)| 1))) (.cse7 (not (= |old(~a21~0)| 1)))) (and (or .cse0 (not (= |old(~a17~0)| |old(~a20~0)|)) .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse8) (or .cse0 .cse1 (and .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) .cse16 .cse8 .cse17) (or (and .cse9 .cse18 .cse10 .cse19 .cse11 .cse20) .cse2 .cse21 .cse22 .cse23) (or .cse24 .cse21 .cse6 .cse23 .cse16 (and .cse9 .cse18 .cse10 .cse11 .cse14 .cse20)) (or (and .cse25 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) .cse0 .cse1 .cse2 .cse16) (or .cse24 .cse5 .cse26 .cse22 .cse7 .cse8 .cse17) (or .cse0 .cse1 .cse22 .cse23 .cse8 .cse4 .cse27) (or .cse0 .cse1 .cse28 (= 14 |old(~a8~0)|) .cse8 .cse27 .cse17) (or .cse2 .cse28 .cse21 .cse29) (or .cse2 .cse21 .cse29 .cse17) (or (not (= |old(~a8~0)| 13)) .cse0 .cse1 (and .cse9 .cse10 .cse19 (= ~a8~0 13) .cse12 .cse13 .cse15) .cse8) (or .cse0 .cse26 .cse1 .cse2 .cse3 .cse22) (or .cse24 .cse2 .cse6 .cse7 (and .cse25 .cse9 .cse30 .cse10 .cse19 .cse11))))) [2020-10-26 20:34:02,144 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,144 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,144 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,145 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:34:02,145 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:34:02,145 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:34:02,145 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:34:02,145 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:34:02,145 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:34:02,145 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:34:02,145 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:34:02,145 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:34:02,145 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:34:02,145 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:34:02,146 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:34:02,147 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:34:02,148 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:34:02,149 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:34:02,149 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:02,149 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (= ~a20~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (<= ~a8~0 15) (= ~a7~0 0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-26 20:34:02,149 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:34:02,149 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:02,149 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a8~0)| 15)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= 5 ~a16~0) (<= ~a8~0 15) (<= 15 ~a8~0) (= ~a7~0 0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:34:02,149 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:02,150 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse7 (= 5 ~a16~0)) (.cse1 (= ~a20~0 1)) (.cse8 (= ~a20~0 ~a7~0)) (.cse10 (not (= |old(~a7~0)| 1))) (.cse13 (= ~a17~0 0)) (.cse11 (<= ~a16~0 4)) (.cse4 (= ~a17~0 1)) (.cse12 (<= 15 ~a8~0)) (.cse2 (<= ~a21~0 1)) (.cse3 (<= 1 ~a21~0)) (.cse9 (= ~a7~0 0)) (.cse6 (<= ~a20~0 0)) (.cse0 (= ~a7~0 1)) (.cse14 (= ~a16~0 6)) (.cse5 (<= ~a8~0 13))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a8~0)| 15)) (and .cse0 .cse5 .cse6) (and .cse1 .cse7 .cse8 .cse4 .cse5) (and (= ~a8~0 13) .cse2 .cse3 .cse9) (and .cse2 .cse3 .cse7 .cse9 .cse6) (and .cse0 .cse10 .cse11 .cse2 .cse3 .cse12) (not (= |old(~a20~0)| 1)) (and .cse0 .cse10 .cse2 .cse3 .cse7) (and .cse0 .cse11 .cse8 .cse5) (and .cse1 .cse2 .cse3 .cse9) (not (= |old(~a21~0)| 1)) (and .cse11 .cse2 .cse3 .cse8 .cse9 .cse13) (and .cse0 (= ~a20~0 ~a17~0) .cse10 .cse2 .cse3 .cse13) (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (and .cse11 .cse2 .cse3 .cse9 .cse4 .cse12 .cse6) (not (= 5 |old(~a16~0)|)) (and .cse14 (not (= 14 ~a8~0)) .cse2 .cse3 .cse9 .cse6) (and .cse0 .cse14 .cse5) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:34:02,150 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:34:02,150 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:34:02,150 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse7 (= 5 ~a16~0)) (.cse1 (= ~a20~0 1)) (.cse8 (= ~a20~0 ~a7~0)) (.cse10 (not (= |old(~a7~0)| 1))) (.cse13 (= ~a17~0 0)) (.cse11 (<= ~a16~0 4)) (.cse4 (= ~a17~0 1)) (.cse12 (<= 15 ~a8~0)) (.cse2 (<= ~a21~0 1)) (.cse3 (<= 1 ~a21~0)) (.cse9 (= ~a7~0 0)) (.cse6 (<= ~a20~0 0)) (.cse0 (= ~a7~0 1)) (.cse14 (= ~a16~0 6)) (.cse5 (<= ~a8~0 13))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a8~0)| 15)) (and .cse0 .cse5 .cse6) (and .cse1 .cse7 .cse8 .cse4 .cse5) (and (= ~a8~0 13) .cse2 .cse3 .cse9) (and .cse2 .cse3 .cse7 .cse9 .cse6) (and .cse0 .cse10 .cse11 .cse2 .cse3 .cse12) (not (= |old(~a20~0)| 1)) (and .cse0 .cse10 .cse2 .cse3 .cse7) (and .cse0 .cse11 .cse8 .cse5) (and .cse1 .cse2 .cse3 .cse9) (not (= |old(~a21~0)| 1)) (and .cse11 .cse2 .cse3 .cse8 .cse9 .cse13) (and .cse0 (= ~a20~0 ~a17~0) .cse10 .cse2 .cse3 .cse13) (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (and .cse11 .cse2 .cse3 .cse9 .cse4 .cse12 .cse6) (not (= 5 |old(~a16~0)|)) (and .cse14 (not (= 14 ~a8~0)) .cse2 .cse3 .cse9 .cse6) (and .cse0 .cse14 .cse5) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:34:02,150 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:02,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:34:02 BoogieIcfgContainer [2020-10-26 20:34:02,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:34:02,192 INFO L168 Benchmark]: Toolchain (without parser) took 119998.87 ms. Allocated memory was 160.4 MB in the beginning and 1.1 GB in the end (delta: 961.5 MB). Free memory was 140.6 MB in the beginning and 934.3 MB in the end (delta: -793.7 MB). Peak memory consumption was 686.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:02,193 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 160.4 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:34:02,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 807.68 ms. Allocated memory is still 160.4 MB. Free memory was 140.0 MB in the beginning and 132.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:02,196 INFO L168 Benchmark]: Boogie Preprocessor took 170.37 ms. Allocated memory is still 160.4 MB. Free memory was 132.9 MB in the beginning and 128.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:02,197 INFO L168 Benchmark]: RCFGBuilder took 1569.40 ms. Allocated memory was 160.4 MB in the beginning and 196.1 MB in the end (delta: 35.7 MB). Free memory was 127.7 MB in the beginning and 107.1 MB in the end (delta: 20.6 MB). Peak memory consumption was 57.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:02,197 INFO L168 Benchmark]: TraceAbstraction took 117435.52 ms. Allocated memory was 196.1 MB in the beginning and 1.1 GB in the end (delta: 925.9 MB). Free memory was 106.5 MB in the beginning and 934.3 MB in the end (delta: -827.7 MB). Peak memory consumption was 616.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:02,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 160.4 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 807.68 ms. Allocated memory is still 160.4 MB. Free memory was 140.0 MB in the beginning and 132.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 170.37 ms. Allocated memory is still 160.4 MB. Free memory was 132.9 MB in the beginning and 128.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1569.40 ms. Allocated memory was 160.4 MB in the beginning and 196.1 MB in the end (delta: 35.7 MB). Free memory was 127.7 MB in the beginning and 107.1 MB in the end (delta: 20.6 MB). Peak memory consumption was 57.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 117435.52 ms. Allocated memory was 196.1 MB in the beginning and 1.1 GB in the end (delta: 925.9 MB). Free memory was 106.5 MB in the beginning and 934.3 MB in the end (delta: -827.7 MB). Peak memory consumption was 616.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a7 == 1 && a20 == 1) && a21 <= 1) && 1 <= a21) && a17 == 1) || !(\old(a8) <= 15)) || ((a7 == 1 && a8 <= 13) && a20 <= 0)) || ((((a20 == 1 && 5 == a16) && a20 == a7) && a17 == 1) && a8 <= 13)) || (((a8 == 13 && a21 <= 1) && 1 <= a21) && a7 == 0)) || ((((a21 <= 1 && 1 <= a21) && 5 == a16) && a7 == 0) && a20 <= 0)) || (((((a7 == 1 && !(\old(a7) == 1)) && a16 <= 4) && a21 <= 1) && 1 <= a21) && 15 <= a8)) || !(\old(a20) == 1)) || ((((a7 == 1 && !(\old(a7) == 1)) && a21 <= 1) && 1 <= a21) && 5 == a16)) || (((a7 == 1 && a16 <= 4) && a20 == a7) && a8 <= 13)) || (((a20 == 1 && a21 <= 1) && 1 <= a21) && a7 == 0)) || !(\old(a21) == 1)) || (((((a16 <= 4 && a21 <= 1) && 1 <= a21) && a20 == a7) && a7 == 0) && a17 == 0)) || (((((a7 == 1 && a20 == a17) && !(\old(a7) == 1)) && a21 <= 1) && 1 <= a21) && a17 == 0)) || !(\old(a17) == 1)) || !(15 <= \old(a8))) || ((((((a16 <= 4 && a21 <= 1) && 1 <= a21) && a7 == 0) && a17 == 1) && 15 <= a8) && a20 <= 0)) || !(5 == \old(a16))) || (((((a16 == 6 && !(14 == a8)) && a21 <= 1) && 1 <= a21) && a7 == 0) && a20 <= 0)) || ((a7 == 1 && a16 == 6) && a8 <= 13)) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 110.2s, OverallIterations: 17, TraceHistogramMax: 7, AutomataDifference: 36.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 472 SDtfs, 7159 SDslu, 674 SDs, 0 SdLazy, 15246 SolverSat, 1719 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 364 GetRequests, 187 SyntacticMatches, 6 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2732occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 17 MinimizatonAttempts, 1336 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 391 PreInvPairs, 451 NumberOfFragments, 1508 HoareAnnotationTreeSize, 391 FomulaSimplifications, 52673 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 11355 FormulaSimplificationTreeSizeReductionInter, 5.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 70.5s InterpolantComputationTime, 3789 NumberOfCodeBlocks, 3789 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3772 ConstructedInterpolants, 0 QuantifiedInterpolants, 3274674 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 2810/3053 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...