/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:38:02,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:38:02,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:38:02,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:38:02,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:38:02,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:38:02,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:38:02,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:38:02,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:38:02,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:38:02,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:38:02,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:38:02,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:38:02,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:38:02,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:38:02,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:38:02,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:38:02,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:38:02,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:38:02,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:38:02,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:38:02,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:38:02,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:38:02,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:38:02,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:38:02,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:38:02,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:38:02,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:38:02,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:38:02,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:38:02,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:38:02,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:38:02,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:38:02,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:38:02,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:38:02,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:38:02,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:38:02,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:38:02,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:38:02,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:38:02,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:38:02,823 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 [2020-10-29 06:38:02,878 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:38:02,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:38:02,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:38:02,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:38:02,880 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:38:02,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:38:02,881 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:38:02,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:38:02,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:38:02,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:38:02,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:38:02,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:38:02,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:38:02,882 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:38:02,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:38:02,883 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:38:02,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:38:02,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:38:02,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:38:02,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:38:02,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:38:02,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:38:02,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:38:02,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:38:02,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:38:02,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:38:02,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:38:02,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:38:02,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:38:02,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:38:03,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:38:03,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:38:03,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:38:03,320 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:38:03,321 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:38:03,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label09.c [2020-10-29 06:38:03,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fcd53ca5/f6a40bbccc5e4267acfec0160d350352/FLAGe401e2d28 [2020-10-29 06:38:04,247 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:38:04,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label09.c [2020-10-29 06:38:04,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fcd53ca5/f6a40bbccc5e4267acfec0160d350352/FLAGe401e2d28 [2020-10-29 06:38:04,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fcd53ca5/f6a40bbccc5e4267acfec0160d350352 [2020-10-29 06:38:04,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:38:04,482 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:38:04,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:38:04,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:38:04,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:38:04,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:38:04" (1/1) ... [2020-10-29 06:38:04,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a6cac73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:04, skipping insertion in model container [2020-10-29 06:38:04,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:38:04" (1/1) ... [2020-10-29 06:38:04,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:38:04,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:38:04,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:38:04,988 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:38:05,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:38:05,169 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:38:05,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:05 WrapperNode [2020-10-29 06:38:05,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:38:05,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:38:05,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:38:05,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:38:05,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:05" (1/1) ... [2020-10-29 06:38:05,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:05" (1/1) ... [2020-10-29 06:38:05,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:05" (1/1) ... [2020-10-29 06:38:05,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:05" (1/1) ... [2020-10-29 06:38:05,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:05" (1/1) ... [2020-10-29 06:38:05,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:05" (1/1) ... [2020-10-29 06:38:05,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:05" (1/1) ... [2020-10-29 06:38:05,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:38:05,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:38:05,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:38:05,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:38:05,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:05" (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 [2020-10-29 06:38:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:38:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:38:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:38:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:38:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:38:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:38:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:38:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:38:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:38:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:38:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:38:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:38:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:38:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:38:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:38:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:38:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:38:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:38:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:38:07,216 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:38:07,216 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:38:07,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:38:07 BoogieIcfgContainer [2020-10-29 06:38:07,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:38:07,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:38:07,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:38:07,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:38:07,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:38:04" (1/3) ... [2020-10-29 06:38:07,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f58ec84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:38:07, skipping insertion in model container [2020-10-29 06:38:07,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:05" (2/3) ... [2020-10-29 06:38:07,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f58ec84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:38:07, skipping insertion in model container [2020-10-29 06:38:07,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:38:07" (3/3) ... [2020-10-29 06:38:07,230 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label09.c [2020-10-29 06:38:07,244 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:38:07,251 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:38:07,266 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:38:07,299 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:38:07,299 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:38:07,300 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:38:07,300 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:38:07,300 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:38:07,300 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:38:07,300 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:38:07,301 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:38:07,339 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-29 06:38:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 06:38:07,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:07,359 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] [2020-10-29 06:38:07,359 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:07,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:07,374 INFO L82 PathProgramCache]: Analyzing trace with hash 950264858, now seen corresponding path program 1 times [2020-10-29 06:38:07,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:07,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522092394] [2020-10-29 06:38:07,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:07,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:08,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:08,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:38:08,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:08,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-10-29 06:38:08,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:08,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:08,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:38:08,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:38:08,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 06:38:08,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 06:38:08,442 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 06:38:08,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:08,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:08,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:08,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:08,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:08,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 06:38:08,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:08,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:08,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:08,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:38:08,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:38:08,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:38:08,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522092394] [2020-10-29 06:38:08,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:38:08,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 06:38:08,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022597616] [2020-10-29 06:38:08,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 06:38:08,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:08,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 06:38:08,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 06:38:08,626 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-29 06:38:10,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:10,760 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-29 06:38:10,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:38:10,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-29 06:38:10,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:10,782 INFO L225 Difference]: With dead ends: 586 [2020-10-29 06:38:10,783 INFO L226 Difference]: Without dead ends: 303 [2020-10-29 06:38:10,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:38:10,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-29 06:38:10,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-29 06:38:10,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-29 06:38:10,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-29 06:38:10,880 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 63 [2020-10-29 06:38:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:10,882 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-29 06:38:10,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 06:38:10,882 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-29 06:38:10,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 06:38:10,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:10,896 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:10,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 06:38:10,897 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:10,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:10,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1217427735, now seen corresponding path program 1 times [2020-10-29 06:38:10,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:10,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91828713] [2020-10-29 06:38:10,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:11,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:11,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:12,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:12,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 06:38:12,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:38:12,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1191 [2020-10-29 06:38:12,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:12,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:12,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 06:38:12,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:38:12,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 06:38:12,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:12,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:12,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:12,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:12,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:12,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:12,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 06:38:12,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:12,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:12,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:12,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:12,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:38:12,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:38:12,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:12,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:12,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:12,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:12,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:38:12,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:38:12,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-29 06:38:12,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:12,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:12,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:12,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:12,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:38:12,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:12,706 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 06:38:12,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91828713] [2020-10-29 06:38:12,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:12,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:38:12,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040195666] [2020-10-29 06:38:12,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:38:12,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:12,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:38:12,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:38:12,710 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 5 states. [2020-10-29 06:38:14,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:14,334 INFO L93 Difference]: Finished difference Result 886 states and 1199 transitions. [2020-10-29 06:38:14,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:38:14,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-10-29 06:38:14,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:14,341 INFO L225 Difference]: With dead ends: 886 [2020-10-29 06:38:14,342 INFO L226 Difference]: Without dead ends: 593 [2020-10-29 06:38:14,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:38:14,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2020-10-29 06:38:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 589. [2020-10-29 06:38:14,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-29 06:38:14,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 757 transitions. [2020-10-29 06:38:14,392 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 757 transitions. Word has length 133 [2020-10-29 06:38:14,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:14,393 INFO L481 AbstractCegarLoop]: Abstraction has 589 states and 757 transitions. [2020-10-29 06:38:14,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:38:14,393 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 757 transitions. [2020-10-29 06:38:14,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-29 06:38:14,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:14,397 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:14,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 06:38:14,398 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:14,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:14,398 INFO L82 PathProgramCache]: Analyzing trace with hash 288291637, now seen corresponding path program 1 times [2020-10-29 06:38:14,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:14,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055430259] [2020-10-29 06:38:14,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:14,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:14,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:15,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:15,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-29 06:38:15,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:38:15,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 619 [2020-10-29 06:38:15,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:15,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 06:38:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 06:38:15,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:15,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:15,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:15,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:15,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:15,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:15,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:38:15,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:15,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:15,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:15,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:15,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:15,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:15,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:38:15,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:15,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 06:38:15,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:15,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:15,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:15,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:15,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:38:15,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:15,394 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 54 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:38:15,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055430259] [2020-10-29 06:38:15,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:15,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:38:15,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861462639] [2020-10-29 06:38:15,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:38:15,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:15,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:38:15,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:38:15,402 INFO L87 Difference]: Start difference. First operand 589 states and 757 transitions. Second operand 5 states. [2020-10-29 06:38:17,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:17,196 INFO L93 Difference]: Finished difference Result 1466 states and 1962 transitions. [2020-10-29 06:38:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:38:17,203 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-10-29 06:38:17,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:17,216 INFO L225 Difference]: With dead ends: 1466 [2020-10-29 06:38:17,216 INFO L226 Difference]: Without dead ends: 883 [2020-10-29 06:38:17,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:38:17,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-10-29 06:38:17,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 879. [2020-10-29 06:38:17,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-29 06:38:17,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1115 transitions. [2020-10-29 06:38:17,291 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1115 transitions. Word has length 142 [2020-10-29 06:38:17,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:17,294 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 1115 transitions. [2020-10-29 06:38:17,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:38:17,295 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1115 transitions. [2020-10-29 06:38:17,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-29 06:38:17,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:17,312 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:17,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 06:38:17,313 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:17,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:17,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1014333394, now seen corresponding path program 1 times [2020-10-29 06:38:17,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:17,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851832736] [2020-10-29 06:38:17,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:17,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:17,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:17,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:18,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:19,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:19,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-29 06:38:19,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:38:19,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1733 [2020-10-29 06:38:19,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:19,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:19,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-10-29 06:38:19,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 06:38:19,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:19,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:19,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:19,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:19,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:19,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:19,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 06:38:19,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:19,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:19,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:19,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:19,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:19,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:19,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:19,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:19,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:19,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:38:19,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:19,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 06:38:19,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:19,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:19,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:19,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:19,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:19,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:19,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 06:38:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:19,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:19,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:19,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:38:19,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 06:38:19,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:19,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 06:38:19,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-29 06:38:19,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851832736] [2020-10-29 06:38:19,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:19,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:38:19,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215148233] [2020-10-29 06:38:19,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:38:19,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:19,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:38:19,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:38:19,492 INFO L87 Difference]: Start difference. First operand 879 states and 1115 transitions. Second operand 5 states. [2020-10-29 06:38:21,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:21,139 INFO L93 Difference]: Finished difference Result 2191 states and 2830 transitions. [2020-10-29 06:38:21,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:38:21,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 215 [2020-10-29 06:38:21,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:21,148 INFO L225 Difference]: With dead ends: 2191 [2020-10-29 06:38:21,148 INFO L226 Difference]: Without dead ends: 883 [2020-10-29 06:38:21,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:38:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-10-29 06:38:21,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 879. [2020-10-29 06:38:21,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-29 06:38:21,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1082 transitions. [2020-10-29 06:38:21,184 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1082 transitions. Word has length 215 [2020-10-29 06:38:21,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:21,184 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 1082 transitions. [2020-10-29 06:38:21,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:38:21,185 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1082 transitions. [2020-10-29 06:38:21,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-29 06:38:21,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:21,189 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:21,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 06:38:21,190 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:21,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:21,190 INFO L82 PathProgramCache]: Analyzing trace with hash 627932044, now seen corresponding path program 1 times [2020-10-29 06:38:21,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:21,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [576241474] [2020-10-29 06:38:21,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:21,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:21,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:21,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:22,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:22,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-29 06:38:22,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:38:22,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1581 [2020-10-29 06:38:22,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:22,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-29 06:38:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 06:38:22,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:22,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:22,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:22,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:22,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:22,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:22,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:38:22,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:22,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:22,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:22,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:22,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:22,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:22,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:23,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:23,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:23,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:38:23,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:23,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 06:38:23,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:23,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:23,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:23,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:23,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:38:23,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:38:23,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 06:38:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:23,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:23,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:23,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 06:38:23,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:23,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-29 06:38:23,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:23,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-29 06:38:23,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:38:23,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [576241474] [2020-10-29 06:38:23,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:23,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:38:23,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894712281] [2020-10-29 06:38:23,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:38:23,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:23,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:38:23,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:38:23,385 INFO L87 Difference]: Start difference. First operand 879 states and 1082 transitions. Second operand 7 states. [2020-10-29 06:38:25,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:25,520 INFO L93 Difference]: Finished difference Result 2074 states and 2634 transitions. [2020-10-29 06:38:25,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:38:25,520 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 231 [2020-10-29 06:38:25,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:25,529 INFO L225 Difference]: With dead ends: 2074 [2020-10-29 06:38:25,529 INFO L226 Difference]: Without dead ends: 1201 [2020-10-29 06:38:25,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:38:25,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2020-10-29 06:38:25,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1189. [2020-10-29 06:38:25,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1189 states. [2020-10-29 06:38:25,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1426 transitions. [2020-10-29 06:38:25,583 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1426 transitions. Word has length 231 [2020-10-29 06:38:25,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:25,583 INFO L481 AbstractCegarLoop]: Abstraction has 1189 states and 1426 transitions. [2020-10-29 06:38:25,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:38:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1426 transitions. [2020-10-29 06:38:25,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-29 06:38:25,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:25,589 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:25,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 06:38:25,589 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:25,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:25,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1668145562, now seen corresponding path program 1 times [2020-10-29 06:38:25,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:25,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191827828] [2020-10-29 06:38:25,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:25,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:25,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:26,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:28,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:28,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-29 06:38:28,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:38:28,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2420 [2020-10-29 06:38:28,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:28,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:28,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:28,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-10-29 06:38:28,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 06:38:28,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:28,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:28,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:28,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:28,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:28,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:28,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:38:28,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:28,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:28,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:28,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:28,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:28,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:28,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:28,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:28,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:28,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:38:28,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:28,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 06:38:28,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:28,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:28,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:28,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:28,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 06:38:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:28,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:28,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:28,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 06:38:28,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:28,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 06:38:28,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:28,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:28,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:28,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:28,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 06:38:28,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-29 06:38:28,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191827828] [2020-10-29 06:38:28,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:28,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:38:28,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602149306] [2020-10-29 06:38:28,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:38:28,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:28,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:38:28,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:38:28,455 INFO L87 Difference]: Start difference. First operand 1189 states and 1426 transitions. Second operand 5 states. [2020-10-29 06:38:30,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:30,057 INFO L93 Difference]: Finished difference Result 2521 states and 3040 transitions. [2020-10-29 06:38:30,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:38:30,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 238 [2020-10-29 06:38:30,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:30,075 INFO L225 Difference]: With dead ends: 2521 [2020-10-29 06:38:30,075 INFO L226 Difference]: Without dead ends: 1044 [2020-10-29 06:38:30,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:38:30,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2020-10-29 06:38:30,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1038. [2020-10-29 06:38:30,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1038 states. [2020-10-29 06:38:30,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1251 transitions. [2020-10-29 06:38:30,114 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1251 transitions. Word has length 238 [2020-10-29 06:38:30,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:30,115 INFO L481 AbstractCegarLoop]: Abstraction has 1038 states and 1251 transitions. [2020-10-29 06:38:30,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:38:30,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1251 transitions. [2020-10-29 06:38:30,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-29 06:38:30,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:30,120 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:30,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 06:38:30,121 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:30,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:30,121 INFO L82 PathProgramCache]: Analyzing trace with hash 160820814, now seen corresponding path program 1 times [2020-10-29 06:38:30,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:30,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303888481] [2020-10-29 06:38:30,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:30,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:30,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:30,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:33,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:35,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:35,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-29 06:38:35,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:38:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 06:38:35,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:35,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-29 06:38:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:38:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:35,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:35,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:35,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:35,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:35,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:35,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:38:35,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:35,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:35,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:35,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:35,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:35,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:35,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:35,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:35,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:35,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:38:35,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:35,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 06:38:35,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:35,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:35,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:35,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:35,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 06:38:35,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:35,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 06:38:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:35,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:35,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:35,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:35,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:35,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-29 06:38:35,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:35,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:38:35,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:38:36,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303888481] [2020-10-29 06:38:36,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:36,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:38:36,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685248900] [2020-10-29 06:38:36,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:38:36,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:36,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:38:36,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:38:36,088 INFO L87 Difference]: Start difference. First operand 1038 states and 1251 transitions. Second operand 7 states. [2020-10-29 06:38:38,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:38,116 INFO L93 Difference]: Finished difference Result 2241 states and 2749 transitions. [2020-10-29 06:38:38,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:38:38,117 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 259 [2020-10-29 06:38:38,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:38,124 INFO L225 Difference]: With dead ends: 2241 [2020-10-29 06:38:38,125 INFO L226 Difference]: Without dead ends: 1209 [2020-10-29 06:38:38,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:38:38,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2020-10-29 06:38:38,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1195. [2020-10-29 06:38:38,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1195 states. [2020-10-29 06:38:38,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1431 transitions. [2020-10-29 06:38:38,167 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1431 transitions. Word has length 259 [2020-10-29 06:38:38,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:38,168 INFO L481 AbstractCegarLoop]: Abstraction has 1195 states and 1431 transitions. [2020-10-29 06:38:38,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:38:38,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1431 transitions. [2020-10-29 06:38:38,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-29 06:38:38,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:38,175 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:38,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 06:38:38,175 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:38,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:38,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2009402374, now seen corresponding path program 1 times [2020-10-29 06:38:38,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:38,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772423581] [2020-10-29 06:38:38,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:38,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:38,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:40,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:42,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:42,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-10-29 06:38:42,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:38:42,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4770 [2020-10-29 06:38:42,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:42,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:38:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:38:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 06:38:42,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:43,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:43,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:43,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:43,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:43,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:43,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 06:38:43,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:43,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:38:43,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:43,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:43,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:43,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:43,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:38:43,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:43,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-29 06:38:43,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:43,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:43,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:43,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:43,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 06:38:43,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:43,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 06:38:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:43,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:43,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:43,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:43,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:43,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 06:38:43,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:43,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:43,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:43,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-29 06:38:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:43,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 110 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 06:38:43,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772423581] [2020-10-29 06:38:43,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:43,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:38:43,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465290134] [2020-10-29 06:38:43,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:38:43,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:43,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:38:43,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:38:43,674 INFO L87 Difference]: Start difference. First operand 1195 states and 1431 transitions. Second operand 7 states. [2020-10-29 06:38:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:45,157 INFO L93 Difference]: Finished difference Result 2549 states and 3054 transitions. [2020-10-29 06:38:45,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:38:45,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 269 [2020-10-29 06:38:45,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:45,178 INFO L225 Difference]: With dead ends: 2549 [2020-10-29 06:38:45,178 INFO L226 Difference]: Without dead ends: 1360 [2020-10-29 06:38:45,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:38:45,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2020-10-29 06:38:45,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1346. [2020-10-29 06:38:45,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2020-10-29 06:38:45,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1598 transitions. [2020-10-29 06:38:45,225 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1598 transitions. Word has length 269 [2020-10-29 06:38:45,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:45,226 INFO L481 AbstractCegarLoop]: Abstraction has 1346 states and 1598 transitions. [2020-10-29 06:38:45,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:38:45,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1598 transitions. [2020-10-29 06:38:45,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-10-29 06:38:45,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:45,236 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:45,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 06:38:45,236 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:45,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:45,237 INFO L82 PathProgramCache]: Analyzing trace with hash 149779629, now seen corresponding path program 1 times [2020-10-29 06:38:45,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:45,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146883391] [2020-10-29 06:38:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:45,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:45,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:45,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:48,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:50,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:50,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 391 [2020-10-29 06:38:50,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:38:50,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-29 06:38:50,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:50,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:38:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:38:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-29 06:38:50,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:50,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:50,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:50,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:50,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:50,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:50,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 06:38:50,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:50,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:50,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:50,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:50,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:50,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:50,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:50,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:50,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:50,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:38:50,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:50,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 06:38:50,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:50,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:50,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:50,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:50,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:38:50,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:50,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:38:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:50,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:50,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:50,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:38:50,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:50,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 06:38:50,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:50,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:50,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 06:38:50,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:50,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-29 06:38:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:50,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:51,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:51,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 06:38:51,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:51,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-29 06:38:51,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:51,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:51,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:51,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:51,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 06:38:51,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 346 proven. 6 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-29 06:38:51,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146883391] [2020-10-29 06:38:51,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:51,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:38:51,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655015255] [2020-10-29 06:38:51,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:38:51,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:51,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:38:51,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:38:51,310 INFO L87 Difference]: Start difference. First operand 1346 states and 1598 transitions. Second operand 7 states. [2020-10-29 06:38:53,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:53,404 INFO L93 Difference]: Finished difference Result 3149 states and 3802 transitions. [2020-10-29 06:38:53,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:38:53,405 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 375 [2020-10-29 06:38:53,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:53,415 INFO L225 Difference]: With dead ends: 3149 [2020-10-29 06:38:53,415 INFO L226 Difference]: Without dead ends: 1952 [2020-10-29 06:38:53,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:38:53,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2020-10-29 06:38:53,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1944. [2020-10-29 06:38:53,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1944 states. [2020-10-29 06:38:53,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2281 transitions. [2020-10-29 06:38:53,477 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2281 transitions. Word has length 375 [2020-10-29 06:38:53,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:53,478 INFO L481 AbstractCegarLoop]: Abstraction has 1944 states and 2281 transitions. [2020-10-29 06:38:53,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:38:53,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2281 transitions. [2020-10-29 06:38:53,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2020-10-29 06:38:53,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:53,485 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:53,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 06:38:53,486 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:53,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:53,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1167038365, now seen corresponding path program 1 times [2020-10-29 06:38:53,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:53,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079875233] [2020-10-29 06:38:53,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:53,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:53,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:57,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:57,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 400 [2020-10-29 06:38:57,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:38:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4049 [2020-10-29 06:38:57,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:57,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:57,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:57,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:38:57,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 06:38:57,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:57,782 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 06:38:57,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:57,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:57,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:57,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:57,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:57,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:38:57,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:57,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:57,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:57,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:57,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:57,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:57,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:57,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:57,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:57,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:38:57,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:57,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 06:38:57,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:57,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:57,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:57,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:57,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:38:57,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:57,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:38:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:58,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:58,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:58,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:38:58,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:58,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-29 06:38:58,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:58,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:58,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:58,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:58,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 06:38:58,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:58,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-29 06:38:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:58,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:58,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:58,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:58,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:58,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 06:38:58,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:58,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-29 06:38:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:58,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 253 proven. 86 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 06:38:58,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079875233] [2020-10-29 06:38:58,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:58,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:38:58,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359373626] [2020-10-29 06:38:58,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:38:58,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:58,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:38:58,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:38:58,656 INFO L87 Difference]: Start difference. First operand 1944 states and 2281 transitions. Second operand 7 states. [2020-10-29 06:39:00,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:00,705 INFO L93 Difference]: Finished difference Result 3749 states and 4420 transitions. [2020-10-29 06:39:00,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:39:00,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 384 [2020-10-29 06:39:00,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:00,716 INFO L225 Difference]: With dead ends: 3749 [2020-10-29 06:39:00,716 INFO L226 Difference]: Without dead ends: 1954 [2020-10-29 06:39:00,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:39:00,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2020-10-29 06:39:00,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1948. [2020-10-29 06:39:00,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1948 states. [2020-10-29 06:39:00,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2262 transitions. [2020-10-29 06:39:00,774 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2262 transitions. Word has length 384 [2020-10-29 06:39:00,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:00,774 INFO L481 AbstractCegarLoop]: Abstraction has 1948 states and 2262 transitions. [2020-10-29 06:39:00,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:39:00,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2262 transitions. [2020-10-29 06:39:00,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-10-29 06:39:00,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:00,781 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:00,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 06:39:00,782 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:00,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:00,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1252659475, now seen corresponding path program 1 times [2020-10-29 06:39:00,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:00,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37478747] [2020-10-29 06:39:00,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:00,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:01,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:01,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:01,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 404 [2020-10-29 06:39:01,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:39:01,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 997 [2020-10-29 06:39:01,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:01,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:01,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-10-29 06:39:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 06:39:01,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:01,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:01,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:01,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:01,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:01,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:01,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:39:01,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:01,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:01,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:01,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:01,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:01,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:02,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:02,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:02,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:02,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:39:02,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:02,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 06:39:02,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:02,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:02,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:02,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:39:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:02,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:02,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:02,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:39:02,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:02,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 06:39:02,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:02,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:02,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:02,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:02,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:02,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:02,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-29 06:39:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:02,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:02,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:02,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 06:39:02,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:02,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-29 06:39:02,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:02,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:02,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:02,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:02,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:39:02,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:02,522 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 168 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-29 06:39:02,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37478747] [2020-10-29 06:39:02,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:02,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:39:02,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241030224] [2020-10-29 06:39:02,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:39:02,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:02,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:39:02,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:39:02,529 INFO L87 Difference]: Start difference. First operand 1948 states and 2262 transitions. Second operand 5 states. [2020-10-29 06:39:04,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:04,096 INFO L93 Difference]: Finished difference Result 4182 states and 5005 transitions. [2020-10-29 06:39:04,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:39:04,097 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 388 [2020-10-29 06:39:04,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:04,109 INFO L225 Difference]: With dead ends: 4182 [2020-10-29 06:39:04,109 INFO L226 Difference]: Without dead ends: 2383 [2020-10-29 06:39:04,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:39:04,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2020-10-29 06:39:04,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2236. [2020-10-29 06:39:04,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2236 states. [2020-10-29 06:39:04,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2588 transitions. [2020-10-29 06:39:04,176 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2588 transitions. Word has length 388 [2020-10-29 06:39:04,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:04,177 INFO L481 AbstractCegarLoop]: Abstraction has 2236 states and 2588 transitions. [2020-10-29 06:39:04,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:39:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2588 transitions. [2020-10-29 06:39:04,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2020-10-29 06:39:04,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:04,184 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:04,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 06:39:04,185 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:04,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:04,185 INFO L82 PathProgramCache]: Analyzing trace with hash -317396297, now seen corresponding path program 1 times [2020-10-29 06:39:04,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:04,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715720587] [2020-10-29 06:39:04,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:04,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:04,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:05,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:05,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 419 [2020-10-29 06:39:05,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:39:05,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1148 [2020-10-29 06:39:05,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:05,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-29 06:39:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 06:39:05,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:05,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:05,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:05,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:05,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:05,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:05,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:39:05,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:05,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:05,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:05,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:05,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:05,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:05,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:05,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:05,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:05,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 06:39:05,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:05,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 06:39:05,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:05,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:05,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:05,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:05,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:05,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:05,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 06:39:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:05,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:05,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:05,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:39:05,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:05,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 06:39:05,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:05,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:05,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:05,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:05,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:05,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:05,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-29 06:39:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:05,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:05,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:05,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:39:05,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:05,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 06:39:05,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:05,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:05,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:05,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 06:39:05,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:06,059 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 168 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-29 06:39:06,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715720587] [2020-10-29 06:39:06,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:06,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:39:06,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054509091] [2020-10-29 06:39:06,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 06:39:06,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:06,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 06:39:06,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:39:06,061 INFO L87 Difference]: Start difference. First operand 2236 states and 2588 transitions. Second operand 6 states. [2020-10-29 06:39:10,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:10,363 INFO L93 Difference]: Finished difference Result 4322 states and 5021 transitions. [2020-10-29 06:39:10,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 06:39:10,364 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 403 [2020-10-29 06:39:10,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:10,365 INFO L225 Difference]: With dead ends: 4322 [2020-10-29 06:39:10,365 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 06:39:10,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:39:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 06:39:10,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 06:39:10,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 06:39:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 06:39:10,374 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 403 [2020-10-29 06:39:10,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:10,374 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 06:39:10,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 06:39:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 06:39:10,375 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 06:39:10,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 06:39:10,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 06:39:10,661 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 109 [2020-10-29 06:39:11,088 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 109 [2020-10-29 06:39:11,459 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 29 [2020-10-29 06:39:12,014 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 38 [2020-10-29 06:39:12,177 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 26 [2020-10-29 06:39:12,444 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 29 [2020-10-29 06:39:12,448 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 06:39:12,448 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 06:39:12,449 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 06:39:12,449 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 06:39:12,449 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:39:12,449 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-29 06:39:12,449 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:39:12,449 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-29 06:39:12,450 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-29 06:39:12,450 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-29 06:39:12,450 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-29 06:39:12,450 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-29 06:39:12,450 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-29 06:39:12,450 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-29 06:39:12,450 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-29 06:39:12,450 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-29 06:39:12,450 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-29 06:39:12,450 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-29 06:39:12,450 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-29 06:39:12,451 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-29 06:39:12,451 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,451 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,451 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,453 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,453 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,454 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,454 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-29 06:39:12,454 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-29 06:39:12,454 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-29 06:39:12,454 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-29 06:39:12,454 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-29 06:39:12,454 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-29 06:39:12,454 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-29 06:39:12,454 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-29 06:39:12,454 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-29 06:39:12,455 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-29 06:39:12,455 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-29 06:39:12,455 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,455 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,455 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,455 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,455 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,455 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-29 06:39:12,455 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-29 06:39:12,455 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-29 06:39:12,455 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-29 06:39:12,457 INFO L270 CegarLoopResult]: At program point L174(line 174) the Hoare annotation is: (let ((.cse0 (not (= 2 |old(~a10~0)|)))) (and (or .cse0 (not (= 7 |old(~a19~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse0) (not (= |old(~a10~0)| 1)) (not (<= 3 |old(~a10~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 8 |old(~a19~0)|)))) [2020-10-29 06:39:12,457 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-29 06:39:12,457 INFO L274 CegarLoopResult]: For program point L174-1(line 174) no Hoare annotation was computed. [2020-10-29 06:39:12,457 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-29 06:39:12,457 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-29 06:39:12,457 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-29 06:39:12,457 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-29 06:39:12,457 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-29 06:39:12,458 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-29 06:39:12,458 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-29 06:39:12,458 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-29 06:39:12,458 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,459 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,459 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,460 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,460 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,460 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-29 06:39:12,460 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-29 06:39:12,460 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-29 06:39:12,460 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-29 06:39:12,460 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-29 06:39:12,460 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-29 06:39:12,460 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-29 06:39:12,460 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-29 06:39:12,460 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-29 06:39:12,461 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-29 06:39:12,461 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,461 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,461 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,461 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,461 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,461 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-29 06:39:12,461 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-29 06:39:12,461 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-29 06:39:12,461 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-29 06:39:12,461 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-29 06:39:12,462 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-29 06:39:12,463 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-29 06:39:12,463 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-29 06:39:12,463 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-29 06:39:12,463 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-29 06:39:12,463 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-29 06:39:12,463 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-29 06:39:12,463 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-29 06:39:12,464 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,464 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,464 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,464 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,464 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,464 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-29 06:39:12,464 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-29 06:39:12,464 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-29 06:39:12,465 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-29 06:39:12,465 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-29 06:39:12,465 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,465 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,465 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-29 06:39:12,466 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-29 06:39:12,467 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-29 06:39:12,467 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-29 06:39:12,467 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-29 06:39:12,467 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-29 06:39:12,467 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-29 06:39:12,467 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-29 06:39:12,467 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-29 06:39:12,468 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-29 06:39:12,468 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-29 06:39:12,468 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,468 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,468 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,468 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,468 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-29 06:39:12,469 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-29 06:39:12,470 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-29 06:39:12,470 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-29 06:39:12,470 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,470 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,470 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,470 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,470 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,470 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,470 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-29 06:39:12,470 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse1 (not (= 2 |old(~a10~0)|))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 (not (= 9 |old(~a19~0)|)) .cse1) (or .cse0 .cse1 (not (= 7 |old(~a19~0)|))) (or (not (= |old(~a10~0)| 1)) .cse0) (or .cse0 (not (= 8 |old(~a19~0)|))) (or .cse0 (not (<= 3 |old(~a10~0)|))) (or .cse0 (not (= 0 |old(~a10~0)|))))) [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-29 06:39:12,471 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-29 06:39:12,472 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,473 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-29 06:39:12,474 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-29 06:39:12,475 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-29 06:39:12,475 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,475 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,475 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,475 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,475 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,475 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:12,475 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:39:12,475 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-29 06:39:12,475 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 06:39:12,476 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:39:12,476 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-29 06:39:12,476 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:39:12,476 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (= ~a10~0 2))) (or (= ~a19~0 8) (<= 3 ~a10~0) (= ~a10~0 1) (and (= 7 ~a19~0) .cse0) (and .cse0 (= ~a19~0 9)) (= ~a10~0 0) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)))) [2020-10-29 06:39:12,476 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-29 06:39:12,476 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-29 06:39:12,476 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (= ~a10~0 2))) (or (= ~a19~0 8) (<= 3 ~a10~0) (= ~a10~0 1) (and (= 7 ~a19~0) .cse0) (and .cse0 (= ~a19~0 9)) (= ~a10~0 0) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)))) [2020-10-29 06:39:12,476 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:39:12,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:39:12 BoogieIcfgContainer [2020-10-29 06:39:12,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 06:39:12,507 INFO L168 Benchmark]: Toolchain (without parser) took 68030.36 ms. Allocated memory was 156.2 MB in the beginning and 973.1 MB in the end (delta: 816.8 MB). Free memory was 129.4 MB in the beginning and 838.8 MB in the end (delta: -709.4 MB). Peak memory consumption was 580.3 MB. Max. memory is 8.0 GB. [2020-10-29 06:39:12,508 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 156.2 MB. Free memory is still 131.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 06:39:12,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.47 ms. Allocated memory is still 156.2 MB. Free memory was 128.9 MB in the beginning and 102.3 MB in the end (delta: 26.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-29 06:39:12,509 INFO L168 Benchmark]: Boogie Preprocessor took 148.84 ms. Allocated memory is still 156.2 MB. Free memory was 102.1 MB in the beginning and 134.0 MB in the end (delta: -31.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 8.0 GB. [2020-10-29 06:39:12,510 INFO L168 Benchmark]: RCFGBuilder took 1898.34 ms. Allocated memory was 156.2 MB in the beginning and 208.7 MB in the end (delta: 52.4 MB). Free memory was 134.0 MB in the beginning and 169.3 MB in the end (delta: -35.3 MB). Peak memory consumption was 87.4 MB. Max. memory is 8.0 GB. [2020-10-29 06:39:12,511 INFO L168 Benchmark]: TraceAbstraction took 65284.52 ms. Allocated memory was 208.7 MB in the beginning and 973.1 MB in the end (delta: 764.4 MB). Free memory was 168.8 MB in the beginning and 838.8 MB in the end (delta: -670.0 MB). Peak memory consumption was 566.8 MB. Max. memory is 8.0 GB. [2020-10-29 06:39:12,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 156.2 MB. Free memory is still 131.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 686.47 ms. Allocated memory is still 156.2 MB. Free memory was 128.9 MB in the beginning and 102.3 MB in the end (delta: 26.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.84 ms. Allocated memory is still 156.2 MB. Free memory was 102.1 MB in the beginning and 134.0 MB in the end (delta: -31.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1898.34 ms. Allocated memory was 156.2 MB in the beginning and 208.7 MB in the end (delta: 52.4 MB). Free memory was 134.0 MB in the beginning and 169.3 MB in the end (delta: -35.3 MB). Peak memory consumption was 87.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 65284.52 ms. Allocated memory was 208.7 MB in the beginning and 973.1 MB in the end (delta: 764.4 MB). Free memory was 168.8 MB in the beginning and 838.8 MB in the end (delta: -670.0 MB). Peak memory consumption was 566.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((a19 == 8 || 3 <= a10) || a10 == 1) || (7 == a19 && a10 == 2)) || (a10 == 2 && a19 == 9)) || a10 == 0) || !(9 == \old(a19))) || !(0 == \old(a10))) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 63.0s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 24.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 3916 SDslu, 356 SDs, 0 SdLazy, 10100 SolverSat, 1045 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 18.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2236occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 223 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 234 PreInvPairs, 274 NumberOfFragments, 308 HoareAnnotationTreeSize, 234 FomulaSimplifications, 68479 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 9421 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 35.2s InterpolantComputationTime, 3100 NumberOfCodeBlocks, 3100 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3088 ConstructedInterpolants, 0 QuantifiedInterpolants, 2114645 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 2640/2830 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...