/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:35:26,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:35:26,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:35:26,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:35:26,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:35:26,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:35:26,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:35:26,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:35:26,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:35:26,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:35:26,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:35:26,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:35:26,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:35:26,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:35:26,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:35:26,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:35:26,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:35:26,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:35:26,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:35:26,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:35:26,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:35:26,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:35:26,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:35:26,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:35:26,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:35:26,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:35:26,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:35:26,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:35:26,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:35:26,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:35:26,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:35:26,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:35:26,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:35:26,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:35:26,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:35:26,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:35:26,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:35:26,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:35:26,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:35:26,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:35:26,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:35:26,968 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:35:27,027 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:35:27,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:35:27,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:35:27,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:35:27,034 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:35:27,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:35:27,034 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:35:27,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:35:27,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:35:27,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:35:27,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:35:27,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:35:27,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:35:27,037 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:35:27,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:35:27,037 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:35:27,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:35:27,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:35:27,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:35:27,039 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:35:27,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:35:27,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:35:27,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:35:27,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:35:27,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:35:27,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:35:27,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:35:27,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:35:27,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:35:27,041 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:35:27,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:35:27,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:35:27,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:35:27,536 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:35:27,537 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:35:27,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label46.c [2020-10-26 20:35:27,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/177e35565/b865b3599ba4487c9d10572d62f7f25a/FLAGea5c0dd73 [2020-10-26 20:35:28,402 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:35:28,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label46.c [2020-10-26 20:35:28,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/177e35565/b865b3599ba4487c9d10572d62f7f25a/FLAGea5c0dd73 [2020-10-26 20:35:28,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/177e35565/b865b3599ba4487c9d10572d62f7f25a [2020-10-26 20:35:28,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:35:28,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:35:28,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:35:28,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:35:28,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:35:28,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:35:28" (1/1) ... [2020-10-26 20:35:28,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@443f3439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:28, skipping insertion in model container [2020-10-26 20:35:28,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:35:28" (1/1) ... [2020-10-26 20:35:28,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:35:28,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:35:29,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:35:29,342 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:35:29,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:35:29,483 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:35:29,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:29 WrapperNode [2020-10-26 20:35:29,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:35:29,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:35:29,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:35:29,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:35:29,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:29" (1/1) ... [2020-10-26 20:35:29,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:29" (1/1) ... [2020-10-26 20:35:29,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:29" (1/1) ... [2020-10-26 20:35:29,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:29" (1/1) ... [2020-10-26 20:35:29,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:29" (1/1) ... [2020-10-26 20:35:29,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:29" (1/1) ... [2020-10-26 20:35:29,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:29" (1/1) ... [2020-10-26 20:35:29,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:35:29,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:35:29,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:35:29,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:35:29,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:35:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:35:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:35:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:35:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:35:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:35:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:35:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:35:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:35:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:35:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:35:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:35:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:35:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:35:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:35:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:35:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:35:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:35:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:35:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:35:31,266 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:35:31,266 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:35:31,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:35:31 BoogieIcfgContainer [2020-10-26 20:35:31,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:35:31,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:35:31,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:35:31,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:35:31,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:35:28" (1/3) ... [2020-10-26 20:35:31,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dde8ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:35:31, skipping insertion in model container [2020-10-26 20:35:31,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:29" (2/3) ... [2020-10-26 20:35:31,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dde8ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:35:31, skipping insertion in model container [2020-10-26 20:35:31,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:35:31" (3/3) ... [2020-10-26 20:35:31,282 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label46.c [2020-10-26 20:35:31,295 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:35:31,301 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:35:31,315 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:35:31,349 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:35:31,350 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:35:31,350 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:35:31,350 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:35:31,350 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:35:31,350 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:35:31,350 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:35:31,351 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:35:31,374 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:35:31,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-26 20:35:31,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:31,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:31,389 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:31,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:31,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1336459021, now seen corresponding path program 1 times [2020-10-26 20:35:31,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:31,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456010459] [2020-10-26 20:35:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:31,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:32,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:34,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:34,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-26 20:35:34,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:34,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2322 [2020-10-26 20:35:34,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:34,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:35:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:35:34,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:35:34,898 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-26 20:35:35,157 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2020-10-26 20:35:35,505 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 49 [2020-10-26 20:35:35,785 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 45 [2020-10-26 20:35:36,046 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 43 [2020-10-26 20:35:36,282 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 40 [2020-10-26 20:35:36,502 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 35 [2020-10-26 20:35:36,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:36,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:36,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:36,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:36,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:36,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:35:36,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:36,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:36,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:36,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:36,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:35:36,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456010459] [2020-10-26 20:35:36,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:35:36,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:35:36,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582714115] [2020-10-26 20:35:36,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:35:36,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:36,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:35:36,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:36,975 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:35:37,200 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:35:37,461 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-26 20:35:37,934 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 124 [2020-10-26 20:35:38,552 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 146 [2020-10-26 20:35:39,166 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 142 [2020-10-26 20:35:39,795 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 139 [2020-10-26 20:35:40,694 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 136 [2020-10-26 20:35:41,711 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 133 [2020-10-26 20:35:42,381 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2020-10-26 20:35:44,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:44,234 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:35:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:35:44,237 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 119 [2020-10-26 20:35:44,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:44,251 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:35:44,251 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:35:44,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:35:44,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:35:44,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:35:44,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:35:44,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:35:44,327 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 119 [2020-10-26 20:35:44,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:44,328 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:35:44,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:35:44,329 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:35:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-26 20:35:44,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:44,333 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:44,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:35:44,334 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:44,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:44,335 INFO L82 PathProgramCache]: Analyzing trace with hash -2017543147, now seen corresponding path program 1 times [2020-10-26 20:35:44,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:44,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105659749] [2020-10-26 20:35:44,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:44,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:45,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:45,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:46,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:46,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-26 20:35:46,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:46,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1738 [2020-10-26 20:35:46,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:46,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:46,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:46,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-26 20:35:46,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:35:46,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:46,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:46,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:46,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:46,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:46,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:35:46,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:46,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:46,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:46,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:46,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:46,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:46,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:46,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:46,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:35:46,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:35:46,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:35:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:35:46,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105659749] [2020-10-26 20:35:46,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:46,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:35:46,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616911563] [2020-10-26 20:35:46,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:35:46,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:46,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:35:46,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:35:46,555 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-26 20:35:48,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:48,056 INFO L93 Difference]: Finished difference Result 491 states and 707 transitions. [2020-10-26 20:35:48,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:35:48,056 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2020-10-26 20:35:48,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:48,062 INFO L225 Difference]: With dead ends: 491 [2020-10-26 20:35:48,062 INFO L226 Difference]: Without dead ends: 351 [2020-10-26 20:35:48,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:48,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-26 20:35:48,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 345. [2020-10-26 20:35:48,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-10-26 20:35:48,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 469 transitions. [2020-10-26 20:35:48,132 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 469 transitions. Word has length 127 [2020-10-26 20:35:48,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:48,133 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 469 transitions. [2020-10-26 20:35:48,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:35:48,133 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 469 transitions. [2020-10-26 20:35:48,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-26 20:35:48,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:48,143 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:48,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:35:48,143 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:48,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:48,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2090443632, now seen corresponding path program 1 times [2020-10-26 20:35:48,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:48,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814892069] [2020-10-26 20:35:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:48,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:48,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:48,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:51,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-26 20:35:53,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:35:53,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-26 20:35:53,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:53,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:53,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 20:35:53,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:35:53,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:53,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:53,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:53,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:35:53,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:53,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:53,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:53,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:53,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:53,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:53,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:53,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:35:53,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:53,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:53,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:35:53,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:53,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:53,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:35:53,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:53,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:35:53,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:53,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:53,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:35:53,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:53,478 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:35:53,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814892069] [2020-10-26 20:35:53,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:53,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:53,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714161208] [2020-10-26 20:35:53,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:53,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:53,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:53,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:53,481 INFO L87 Difference]: Start difference. First operand 345 states and 469 transitions. Second operand 8 states. [2020-10-26 20:35:55,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:55,277 INFO L93 Difference]: Finished difference Result 939 states and 1334 transitions. [2020-10-26 20:35:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:35:55,277 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2020-10-26 20:35:55,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:55,283 INFO L225 Difference]: With dead ends: 939 [2020-10-26 20:35:55,283 INFO L226 Difference]: Without dead ends: 660 [2020-10-26 20:35:55,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:55,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2020-10-26 20:35:55,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 633. [2020-10-26 20:35:55,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-10-26 20:35:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 848 transitions. [2020-10-26 20:35:55,337 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 848 transitions. Word has length 136 [2020-10-26 20:35:55,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:55,337 INFO L481 AbstractCegarLoop]: Abstraction has 633 states and 848 transitions. [2020-10-26 20:35:55,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:55,337 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 848 transitions. [2020-10-26 20:35:55,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-26 20:35:55,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:55,341 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:55,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:35:55,342 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:55,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:55,342 INFO L82 PathProgramCache]: Analyzing trace with hash -9653905, now seen corresponding path program 1 times [2020-10-26 20:35:55,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:55,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625385862] [2020-10-26 20:35:55,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:58,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:00,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:00,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-26 20:36:00,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:00,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-26 20:36:00,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:36:00,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:00,543 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:36:00,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:00,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:00,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:00,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:00,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:00,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:36:00,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:00,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:00,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:00,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:00,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:00,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:00,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:00,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:36:00,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:00,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:36:00,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:36:00,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:00,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:36:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:00,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:00,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:00,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:36:00,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:00,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:36:00,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:36:00,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:00,791 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:36:00,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625385862] [2020-10-26 20:36:00,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:00,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:00,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002585053] [2020-10-26 20:36:00,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:00,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:00,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:00,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:00,797 INFO L87 Difference]: Start difference. First operand 633 states and 848 transitions. Second operand 8 states. [2020-10-26 20:36:02,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:02,487 INFO L93 Difference]: Finished difference Result 1492 states and 2066 transitions. [2020-10-26 20:36:02,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:36:02,488 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 139 [2020-10-26 20:36:02,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:02,495 INFO L225 Difference]: With dead ends: 1492 [2020-10-26 20:36:02,495 INFO L226 Difference]: Without dead ends: 925 [2020-10-26 20:36:02,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:02,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2020-10-26 20:36:02,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 919. [2020-10-26 20:36:02,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-10-26 20:36:02,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1236 transitions. [2020-10-26 20:36:02,548 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1236 transitions. Word has length 139 [2020-10-26 20:36:02,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:02,548 INFO L481 AbstractCegarLoop]: Abstraction has 919 states and 1236 transitions. [2020-10-26 20:36:02,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:02,548 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1236 transitions. [2020-10-26 20:36:02,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-26 20:36:02,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:02,553 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:02,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:36:02,553 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:02,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:02,554 INFO L82 PathProgramCache]: Analyzing trace with hash -212774056, now seen corresponding path program 1 times [2020-10-26 20:36:02,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:02,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588367614] [2020-10-26 20:36:02,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:04,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:04,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:06,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-26 20:36:06,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:36:06,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4201 [2020-10-26 20:36:06,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:36:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-26 20:36:06,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:06,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:06,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:06,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:06,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:06,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:36:06,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:06,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:06,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:06,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:06,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:07,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:07,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:07,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:07,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:07,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:07,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:36:07,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:36:07,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:07,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:07,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:07,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:07,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:07,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:07,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:07,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:36:07,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:07,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:07,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:07,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:36:07,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:07,169 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-26 20:36:07,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588367614] [2020-10-26 20:36:07,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:07,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:36:07,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979915969] [2020-10-26 20:36:07,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:07,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:07,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:07,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:07,173 INFO L87 Difference]: Start difference. First operand 919 states and 1236 transitions. Second operand 7 states. [2020-10-26 20:36:07,347 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:36:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:09,378 INFO L93 Difference]: Finished difference Result 1897 states and 2594 transitions. [2020-10-26 20:36:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:36:09,379 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-10-26 20:36:09,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:09,392 INFO L225 Difference]: With dead ends: 1897 [2020-10-26 20:36:09,392 INFO L226 Difference]: Without dead ends: 1894 [2020-10-26 20:36:09,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:36:09,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2020-10-26 20:36:09,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1753. [2020-10-26 20:36:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1753 states. [2020-10-26 20:36:09,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 2397 transitions. [2020-10-26 20:36:09,479 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 2397 transitions. Word has length 140 [2020-10-26 20:36:09,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:09,479 INFO L481 AbstractCegarLoop]: Abstraction has 1753 states and 2397 transitions. [2020-10-26 20:36:09,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:09,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 2397 transitions. [2020-10-26 20:36:09,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-26 20:36:09,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:09,488 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:09,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:36:09,488 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:09,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:09,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1731355195, now seen corresponding path program 1 times [2020-10-26 20:36:09,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:09,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970465414] [2020-10-26 20:36:09,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:09,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:09,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:09,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:09,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:14,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:14,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-26 20:36:14,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:14,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-26 20:36:14,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:14,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:14,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:14,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:36:14,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:14,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:14,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:14,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:14,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:14,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:36:14,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:14,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:14,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:14,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:14,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:14,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:14,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:14,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:36:14,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:36:14,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:14,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:14,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:14,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:14,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:14,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:14,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:36:14,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:14,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:14,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:14,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:14,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:14,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:36:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:14,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:14,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:14,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 20:36:14,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:14,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:36:14,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:36:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:14,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:36:14,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970465414] [2020-10-26 20:36:14,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:14,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:36:14,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689760593] [2020-10-26 20:36:14,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:14,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:14,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:14,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:14,907 INFO L87 Difference]: Start difference. First operand 1753 states and 2397 transitions. Second operand 8 states. [2020-10-26 20:36:16,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:16,800 INFO L93 Difference]: Finished difference Result 3603 states and 4953 transitions. [2020-10-26 20:36:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:36:16,804 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2020-10-26 20:36:16,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:16,818 INFO L225 Difference]: With dead ends: 3603 [2020-10-26 20:36:16,818 INFO L226 Difference]: Without dead ends: 1916 [2020-10-26 20:36:16,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:36:16,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2020-10-26 20:36:16,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1483. [2020-10-26 20:36:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1483 states. [2020-10-26 20:36:16,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1991 transitions. [2020-10-26 20:36:16,893 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1991 transitions. Word has length 165 [2020-10-26 20:36:16,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:16,894 INFO L481 AbstractCegarLoop]: Abstraction has 1483 states and 1991 transitions. [2020-10-26 20:36:16,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:16,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1991 transitions. [2020-10-26 20:36:16,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-26 20:36:16,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:16,900 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:16,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:36:16,901 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:16,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:16,901 INFO L82 PathProgramCache]: Analyzing trace with hash -515815098, now seen corresponding path program 1 times [2020-10-26 20:36:16,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:16,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854237617] [2020-10-26 20:36:16,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:16,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:16,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:18,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:21,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:21,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-26 20:36:21,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:21,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-26 20:36:21,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:21,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:21,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:21,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:36:21,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:22,073 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:36:22,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:22,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:22,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:22,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:22,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:36:22,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:22,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:22,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:22,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:22,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:22,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:22,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:22,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:36:22,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:22,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:36:22,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:22,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:22,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:22,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:36:22,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:22,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:36:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:22,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:22,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:22,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:22,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:36:22,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:22,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:22,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:36:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:22,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:22,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 20:36:22,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:22,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:36:22,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:22,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:22,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:36:22,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:22,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 49 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:36:22,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854237617] [2020-10-26 20:36:22,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:22,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:36:22,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312070241] [2020-10-26 20:36:22,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:22,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:22,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:22,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:22,415 INFO L87 Difference]: Start difference. First operand 1483 states and 1991 transitions. Second operand 8 states. [2020-10-26 20:36:24,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:24,468 INFO L93 Difference]: Finished difference Result 3504 states and 4860 transitions. [2020-10-26 20:36:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:36:24,469 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2020-10-26 20:36:24,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:24,484 INFO L225 Difference]: With dead ends: 3504 [2020-10-26 20:36:24,485 INFO L226 Difference]: Without dead ends: 2087 [2020-10-26 20:36:24,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:36:24,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2020-10-26 20:36:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 1922. [2020-10-26 20:36:24,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1922 states. [2020-10-26 20:36:24,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 2521 transitions. [2020-10-26 20:36:24,569 INFO L78 Accepts]: Start accepts. Automaton has 1922 states and 2521 transitions. Word has length 168 [2020-10-26 20:36:24,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:24,570 INFO L481 AbstractCegarLoop]: Abstraction has 1922 states and 2521 transitions. [2020-10-26 20:36:24,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:24,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states and 2521 transitions. [2020-10-26 20:36:24,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-26 20:36:24,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:24,578 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:24,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:36:24,579 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:24,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:24,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1889765352, now seen corresponding path program 1 times [2020-10-26 20:36:24,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:24,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472766022] [2020-10-26 20:36:24,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:24,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:24,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:24,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:24,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:26,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-26 20:36:29,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:36:29,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-26 20:36:29,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:36:29,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:29,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:36:29,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:29,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:29,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:29,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:29,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:36:29,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:29,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:29,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:36:29,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:29,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:36:29,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:36:29,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:29,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:36:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:29,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:29,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:29,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:36:29,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:29,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:29,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:36:29,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:29,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:36:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:29,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:29,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:29,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:36:29,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:29,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:29,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:29,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:30,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:36:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:30,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:30,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:30,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 20:36:30,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:30,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:36:30,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:30,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:30,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:36:30,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:30,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:30,132 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 28 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-26 20:36:30,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472766022] [2020-10-26 20:36:30,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:30,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 20:36:30,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346157234] [2020-10-26 20:36:30,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 20:36:30,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:30,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 20:36:30,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:36:30,135 INFO L87 Difference]: Start difference. First operand 1922 states and 2521 transitions. Second operand 9 states. [2020-10-26 20:36:31,802 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:36:32,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:32,342 INFO L93 Difference]: Finished difference Result 3804 states and 5034 transitions. [2020-10-26 20:36:32,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:36:32,343 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-10-26 20:36:32,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:32,355 INFO L225 Difference]: With dead ends: 3804 [2020-10-26 20:36:32,355 INFO L226 Difference]: Without dead ends: 1948 [2020-10-26 20:36:32,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2020-10-26 20:36:32,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2020-10-26 20:36:32,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1920. [2020-10-26 20:36:32,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2020-10-26 20:36:32,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2496 transitions. [2020-10-26 20:36:32,435 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2496 transitions. Word has length 176 [2020-10-26 20:36:32,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:32,435 INFO L481 AbstractCegarLoop]: Abstraction has 1920 states and 2496 transitions. [2020-10-26 20:36:32,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 20:36:32,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2496 transitions. [2020-10-26 20:36:32,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-26 20:36:32,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:32,443 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:32,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:36:32,444 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:32,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:32,444 INFO L82 PathProgramCache]: Analyzing trace with hash -201872696, now seen corresponding path program 1 times [2020-10-26 20:36:32,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:32,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727705818] [2020-10-26 20:36:32,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:34,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:37,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:37,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-26 20:36:37,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:37,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-26 20:36:37,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:37,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:37,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:36:37,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-26 20:36:37,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:37,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:37,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:37,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:37,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:37,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:37,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:37,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:37,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:37,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:37,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:37,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:37,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:37,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:36:37,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:37,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:37,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:37,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:37,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:37,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:37,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:37,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:36:37,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:36:37,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:37,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:36:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:37,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:37,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:37,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:37,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:37,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:36:37,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:37,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:37,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:36:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:37,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:37,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:37,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 20:36:37,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:37,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:36:37,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:36:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:37,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:37,817 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 65 proven. 26 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-26 20:36:37,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727705818] [2020-10-26 20:36:37,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:37,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:37,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445813480] [2020-10-26 20:36:37,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:37,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:37,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:37,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:37,821 INFO L87 Difference]: Start difference. First operand 1920 states and 2496 transitions. Second operand 7 states. [2020-10-26 20:36:39,862 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:36:39,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:39,886 INFO L93 Difference]: Finished difference Result 4932 states and 6570 transitions. [2020-10-26 20:36:39,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:36:39,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-26 20:36:39,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:39,905 INFO L225 Difference]: With dead ends: 4932 [2020-10-26 20:36:39,905 INFO L226 Difference]: Without dead ends: 3078 [2020-10-26 20:36:39,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:36:39,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3078 states. [2020-10-26 20:36:40,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3078 to 3056. [2020-10-26 20:36:40,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3056 states. [2020-10-26 20:36:40,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3056 states to 3056 states and 3923 transitions. [2020-10-26 20:36:40,054 INFO L78 Accepts]: Start accepts. Automaton has 3056 states and 3923 transitions. Word has length 178 [2020-10-26 20:36:40,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:40,054 INFO L481 AbstractCegarLoop]: Abstraction has 3056 states and 3923 transitions. [2020-10-26 20:36:40,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:40,054 INFO L276 IsEmpty]: Start isEmpty. Operand 3056 states and 3923 transitions. [2020-10-26 20:36:40,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-26 20:36:40,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:40,067 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:40,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:36:40,067 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:40,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:40,068 INFO L82 PathProgramCache]: Analyzing trace with hash -888376868, now seen corresponding path program 1 times [2020-10-26 20:36:40,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:40,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728291076] [2020-10-26 20:36:40,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:40,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:40,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:40,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:44,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:44,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:45,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:45,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-26 20:36:45,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:36:45,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-26 20:36:45,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:45,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:45,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:36:45,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:36:45,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:45,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:45,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:45,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:45,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:45,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:45,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:36:45,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:45,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:45,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:45,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:45,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:45,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:45,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:45,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:45,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:45,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:45,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:36:45,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:45,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:45,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:45,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:36:45,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:45,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:45,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:45,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:45,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:36:45,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:45,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:36:45,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:45,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:45,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:45,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:36:45,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:45,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:36:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:45,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:45,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:45,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:45,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:45,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:36:45,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:45,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:45,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:36:45,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:45,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:45,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:36:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:45,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:45,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:45,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:36:45,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:45,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:36:45,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:36:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:45,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:45,492 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 86 proven. 40 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:36:45,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728291076] [2020-10-26 20:36:45,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:45,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:36:45,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696188019] [2020-10-26 20:36:45,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:45,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:45,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:45,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:45,494 INFO L87 Difference]: Start difference. First operand 3056 states and 3923 transitions. Second operand 8 states. [2020-10-26 20:36:46,630 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:36:48,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:48,447 INFO L93 Difference]: Finished difference Result 7696 states and 10003 transitions. [2020-10-26 20:36:48,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:36:48,448 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 204 [2020-10-26 20:36:48,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:48,472 INFO L225 Difference]: With dead ends: 7696 [2020-10-26 20:36:48,472 INFO L226 Difference]: Without dead ends: 4706 [2020-10-26 20:36:48,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:36:48,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4706 states. [2020-10-26 20:36:48,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4706 to 4696. [2020-10-26 20:36:48,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4696 states. [2020-10-26 20:36:48,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4696 states to 4696 states and 5732 transitions. [2020-10-26 20:36:48,634 INFO L78 Accepts]: Start accepts. Automaton has 4696 states and 5732 transitions. Word has length 204 [2020-10-26 20:36:48,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:48,634 INFO L481 AbstractCegarLoop]: Abstraction has 4696 states and 5732 transitions. [2020-10-26 20:36:48,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 4696 states and 5732 transitions. [2020-10-26 20:36:48,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-26 20:36:48,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:48,649 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:48,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:36:48,649 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:48,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:48,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1657485509, now seen corresponding path program 1 times [2020-10-26 20:36:48,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:48,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836181583] [2020-10-26 20:36:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:48,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:48,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:48,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:48,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:49,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:53,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-26 20:36:53,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:36:53,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-26 20:36:53,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:53,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:36:53,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:53,843 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:36:53,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:53,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:53,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:53,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:53,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:36:53,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:53,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:53,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:53,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:53,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:36:53,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:53,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:36:53,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:53,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:36:53,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:53,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:36:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:53,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:53,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:36:53,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:53,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:36:53,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:53,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:53,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:36:53,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:53,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-26 20:36:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:54,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:54,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:54,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:54,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:54,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:36:54,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:36:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:54,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:54,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 20:36:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:54,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:54,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:54,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:36:54,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:54,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:36:54,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:54,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:36:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:54,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 89 proven. 48 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-26 20:36:54,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836181583] [2020-10-26 20:36:54,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:54,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:36:54,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128775774] [2020-10-26 20:36:54,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:54,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:54,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:54,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:54,081 INFO L87 Difference]: Start difference. First operand 4696 states and 5732 transitions. Second operand 8 states. [2020-10-26 20:36:54,948 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:36:56,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:56,251 INFO L93 Difference]: Finished difference Result 9213 states and 11327 transitions. [2020-10-26 20:36:56,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:36:56,251 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-10-26 20:36:56,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:56,277 INFO L225 Difference]: With dead ends: 9213 [2020-10-26 20:36:56,277 INFO L226 Difference]: Without dead ends: 4585 [2020-10-26 20:36:56,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:36:56,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4585 states. [2020-10-26 20:36:56,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4585 to 4569. [2020-10-26 20:36:56,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4569 states. [2020-10-26 20:36:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4569 states to 4569 states and 5565 transitions. [2020-10-26 20:36:56,430 INFO L78 Accepts]: Start accepts. Automaton has 4569 states and 5565 transitions. Word has length 207 [2020-10-26 20:36:56,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:56,430 INFO L481 AbstractCegarLoop]: Abstraction has 4569 states and 5565 transitions. [2020-10-26 20:36:56,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:56,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4569 states and 5565 transitions. [2020-10-26 20:36:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-26 20:36:56,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:56,446 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:56,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:36:56,447 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:56,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:56,447 INFO L82 PathProgramCache]: Analyzing trace with hash 494275409, now seen corresponding path program 1 times [2020-10-26 20:36:56,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:56,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226917098] [2020-10-26 20:36:56,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:56,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:56,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:56,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:56,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-26 20:36:56,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:56,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-26 20:36:56,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:56,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:56,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:36:56,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-26 20:36:56,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:57,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:57,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:57,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:57,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:57,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:57,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:36:57,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:57,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:57,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:57,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:57,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:57,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:57,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:57,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:57,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:57,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:57,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 20:36:57,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:57,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:57,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:57,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:57,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:57,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:36:57,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:57,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:36:57,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:57,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:57,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:57,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:57,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:57,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:36:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:57,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:57,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:57,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:36:57,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:57,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 20:36:57,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:57,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:57,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:57,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:36:57,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:57,483 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-26 20:36:57,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226917098] [2020-10-26 20:36:57,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:57,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:36:57,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195116083] [2020-10-26 20:36:57,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:36:57,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:57,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:36:57,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:36:57,488 INFO L87 Difference]: Start difference. First operand 4569 states and 5565 transitions. Second operand 5 states. [2020-10-26 20:36:58,412 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-26 20:36:59,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:59,034 INFO L93 Difference]: Finished difference Result 8978 states and 10963 transitions. [2020-10-26 20:36:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:36:59,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-10-26 20:36:59,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:59,071 INFO L225 Difference]: With dead ends: 8978 [2020-10-26 20:36:59,071 INFO L226 Difference]: Without dead ends: 4305 [2020-10-26 20:36:59,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4305 states. [2020-10-26 20:36:59,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4305 to 4295. [2020-10-26 20:36:59,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4295 states. [2020-10-26 20:36:59,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 5119 transitions. [2020-10-26 20:36:59,211 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 5119 transitions. Word has length 235 [2020-10-26 20:36:59,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:59,211 INFO L481 AbstractCegarLoop]: Abstraction has 4295 states and 5119 transitions. [2020-10-26 20:36:59,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:36:59,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 5119 transitions. [2020-10-26 20:36:59,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-26 20:36:59,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:59,225 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:59,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:36:59,226 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:59,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:59,226 INFO L82 PathProgramCache]: Analyzing trace with hash 218398047, now seen corresponding path program 1 times [2020-10-26 20:36:59,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:59,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342366095] [2020-10-26 20:36:59,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:59,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:59,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:00,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:01,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-26 20:37:03,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:03,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3738 [2020-10-26 20:37:03,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:37:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:37:03,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:03,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:03,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:03,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:03,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:37:03,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:03,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:03,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:03,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:03,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:03,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:37:03,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:03,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:37:03,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:03,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:03,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:03,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:03,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:37:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:03,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:37:03,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:03,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:37:03,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:37:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:03,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:37:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:03,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:03,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:03,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:37:03,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:03,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:03,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:37:03,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:03,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:37:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:03,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:37:03,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:03,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:37:03,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:03,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:37:03,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:03,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:03,345 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 143 proven. 14 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-26 20:37:03,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342366095] [2020-10-26 20:37:03,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:03,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:03,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000814796] [2020-10-26 20:37:03,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:03,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:03,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:03,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:03,347 INFO L87 Difference]: Start difference. First operand 4295 states and 5119 transitions. Second operand 7 states. [2020-10-26 20:37:05,265 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:37:05,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:05,279 INFO L93 Difference]: Finished difference Result 9084 states and 10934 transitions. [2020-10-26 20:37:05,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:37:05,286 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-10-26 20:37:05,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:05,305 INFO L225 Difference]: With dead ends: 9084 [2020-10-26 20:37:05,305 INFO L226 Difference]: Without dead ends: 4857 [2020-10-26 20:37:05,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:37:05,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2020-10-26 20:37:05,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 4847. [2020-10-26 20:37:05,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4847 states. [2020-10-26 20:37:05,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4847 states to 4847 states and 5718 transitions. [2020-10-26 20:37:05,488 INFO L78 Accepts]: Start accepts. Automaton has 4847 states and 5718 transitions. Word has length 237 [2020-10-26 20:37:05,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:05,489 INFO L481 AbstractCegarLoop]: Abstraction has 4847 states and 5718 transitions. [2020-10-26 20:37:05,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:05,489 INFO L276 IsEmpty]: Start isEmpty. Operand 4847 states and 5718 transitions. [2020-10-26 20:37:05,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-26 20:37:05,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:05,507 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:05,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:37:05,507 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:05,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:05,508 INFO L82 PathProgramCache]: Analyzing trace with hash 466766658, now seen corresponding path program 1 times [2020-10-26 20:37:05,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:05,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123769848] [2020-10-26 20:37:05,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:05,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:05,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:07,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:07,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:10,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:10,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-26 20:37:10,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:10,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-26 20:37:10,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:10,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:10,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:37:10,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:37:10,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:10,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:10,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:10,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:10,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:10,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:10,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:37:10,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:10,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:10,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:10,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:10,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:10,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:10,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:10,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:10,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:37:10,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:10,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:37:10,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:10,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:10,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:10,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:37:10,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:10,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:37:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:10,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:10,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:10,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:37:10,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:10,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-26 20:37:10,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:37:10,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:10,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:37:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:10,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:10,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:10,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:10,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:10,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:37:10,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:37:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:10,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:10,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:37:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:10,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:10,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:10,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:10,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:10,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:10,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:10,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:10,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:37:10,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:10,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:10,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:37:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:10,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:10,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:10,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:37:10,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:10,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:37:10,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:10,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:10,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:37:10,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:10,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:10,932 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 184 proven. 50 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-26 20:37:10,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123769848] [2020-10-26 20:37:10,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:10,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:10,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671356948] [2020-10-26 20:37:10,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:10,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:10,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:10,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:10,934 INFO L87 Difference]: Start difference. First operand 4847 states and 5718 transitions. Second operand 7 states. [2020-10-26 20:37:11,357 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:37:12,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:12,997 INFO L93 Difference]: Finished difference Result 10061 states and 11938 transitions. [2020-10-26 20:37:12,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:13,000 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 268 [2020-10-26 20:37:13,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:13,018 INFO L225 Difference]: With dead ends: 10061 [2020-10-26 20:37:13,018 INFO L226 Difference]: Without dead ends: 5282 [2020-10-26 20:37:13,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:13,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5282 states. [2020-10-26 20:37:13,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5282 to 5123. [2020-10-26 20:37:13,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5123 states. [2020-10-26 20:37:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 5967 transitions. [2020-10-26 20:37:13,153 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 5967 transitions. Word has length 268 [2020-10-26 20:37:13,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:13,153 INFO L481 AbstractCegarLoop]: Abstraction has 5123 states and 5967 transitions. [2020-10-26 20:37:13,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:13,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 5967 transitions. [2020-10-26 20:37:13,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-26 20:37:13,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:13,171 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:13,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:37:13,172 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:13,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:13,172 INFO L82 PathProgramCache]: Analyzing trace with hash -60107506, now seen corresponding path program 1 times [2020-10-26 20:37:13,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:13,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752837194] [2020-10-26 20:37:13,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:13,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:13,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:13,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-26 20:37:15,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:15,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2131 [2020-10-26 20:37:15,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:37:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:37:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-26 20:37:15,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:15,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:15,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:15,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:37:15,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:15,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:15,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:15,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:15,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:37:15,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:15,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:37:15,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:15,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:37:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:15,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:37:15,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:15,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:15,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:37:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:15,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:15,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:15,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:15,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:37:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:15,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:15,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:15,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:37:15,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:15,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:15,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:37:15,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:37:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:15,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:37:15,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:15,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:37:15,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:15,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:15,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 20:37:15,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 214 proven. 29 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-26 20:37:15,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752837194] [2020-10-26 20:37:15,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:15,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:37:15,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960624172] [2020-10-26 20:37:15,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:37:15,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:15,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:37:15,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:37:15,809 INFO L87 Difference]: Start difference. First operand 5123 states and 5967 transitions. Second operand 6 states. [2020-10-26 20:37:16,671 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:37:17,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:17,398 INFO L93 Difference]: Finished difference Result 10281 states and 12131 transitions. [2020-10-26 20:37:17,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:37:17,399 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 290 [2020-10-26 20:37:17,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:17,400 INFO L225 Difference]: With dead ends: 10281 [2020-10-26 20:37:17,400 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:37:17,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:17,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:37:17,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:37:17,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:37:17,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:37:17,423 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 290 [2020-10-26 20:37:17,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:17,424 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:37:17,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:37:17,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:37:17,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:37:17,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:37:17,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:37:19,160 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 237 [2020-10-26 20:37:19,481 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 215 [2020-10-26 20:37:19,693 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 40 [2020-10-26 20:37:20,078 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 47 [2020-10-26 20:37:21,884 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 286 DAG size of output: 74 [2020-10-26 20:37:22,848 WARN L193 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 59 [2020-10-26 20:37:23,867 WARN L193 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 59 [2020-10-26 20:37:23,872 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:37:23,872 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:37:23,873 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:37:23,873 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:37:23,873 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:37:23,873 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:37:23,874 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:37:23,874 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,874 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,874 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,874 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,874 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,875 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,875 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:37:23,875 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:37:23,875 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:37:23,875 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:37:23,875 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:37:23,875 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:37:23,875 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:37:23,876 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:37:23,876 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:37:23,876 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:37:23,876 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:37:23,876 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:37:23,876 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,876 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,876 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,876 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,876 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,876 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,877 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:37:23,878 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:37:23,879 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:37:23,879 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:37:23,879 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,879 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,879 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,879 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,879 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,879 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:37:23,879 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:37:23,879 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:37:23,879 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:37:23,880 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,881 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,882 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,882 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,882 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,882 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:37:23,882 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:37:23,882 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:37:23,882 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,882 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,882 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:37:23,883 INFO L270 CegarLoopResult]: At program point L514(line 514) the Hoare annotation is: (let ((.cse5 (= |old(~a17~0)| 1)) (.cse4 (= |old(~a20~0)| 1))) (let ((.cse1 (not .cse4)) (.cse0 (not .cse5)) (.cse3 (not (= |old(~a7~0)| 0))) (.cse6 (not (<= |old(~a20~0)| 0))) (.cse2 (not (= |old(~a21~0)| 1)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse2 .cse3) (not (<= |old(~a21~0)| 0)) (or .cse4 .cse5 .cse2 (not (= ~a12~0 8)) (not (= 4 |old(~a16~0)|)) (= |old(~a7~0)| 1)) (or .cse0 (not (= 6 |old(~a16~0)|)) .cse2 .cse3 .cse6) (or (not (<= 5 |old(~a16~0)|)) .cse0 (not (<= |old(~a16~0)| 5)) .cse2 .cse3 .cse6) (or (= |old(~a8~0)| 13) .cse2)))) [2020-10-26 20:37:23,883 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:37:23,883 INFO L274 CegarLoopResult]: For program point L514-1(line 514) no Hoare annotation was computed. [2020-10-26 20:37:23,883 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:37:23,883 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:37:23,883 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:37:23,883 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,883 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,883 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,883 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,884 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:37:23,884 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,884 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:37:23,884 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:37:23,884 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:37:23,884 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:37:23,884 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:37:23,884 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:37:23,884 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:37:23,884 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:37:23,884 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:37:23,885 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:37:23,886 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:37:23,886 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:37:23,886 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:37:23,886 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:37:23,886 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,886 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,886 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse7 (= ~a21~0 1)) (.cse8 (= ~a20~0 |old(~a20~0)|)) (.cse9 (= ~a16~0 |old(~a16~0)|)) (.cse10 (= ~a8~0 |old(~a8~0)|)) (.cse12 (= |old(~a17~0)| 1)) (.cse11 (= |old(~a20~0)| 1))) (let ((.cse4 (= |old(~a8~0)| 13)) (.cse1 (not .cse11)) (.cse6 (= ~a7~0 |old(~a7~0)|)) (.cse13 (not .cse12)) (.cse0 (and .cse5 .cse7 .cse8 .cse9 .cse10 (= ~a7~0 0))) (.cse2 (not (= |old(~a21~0)| 1))) (.cse3 (not (= |old(~a7~0)| 0))) (.cse14 (not (<= |old(~a20~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 (and .cse5 .cse6 .cse7 .cse8 .cse9 .cse10)) (or (not (<= |old(~a21~0)| 0)) (and .cse6 .cse5 (= ~a21~0 |old(~a21~0)|) .cse8 .cse9 .cse10)) (or (not .cse4) .cse11 .cse12 (and .cse6 .cse5 .cse7 .cse8 (= ~a8~0 13) (= ~a16~0 4)) .cse2 (not (= ~a12~0 8)) (not (= 4 |old(~a16~0)|)) (= |old(~a7~0)| 1)) (or .cse13 .cse0 (not (= 6 |old(~a16~0)|)) .cse2 .cse3 .cse14) (or .cse13 .cse1 (and .cse6 .cse5 .cse7 .cse8 .cse9 .cse10) .cse2) (or (not (<= 5 |old(~a16~0)|)) .cse13 .cse0 (not (<= |old(~a16~0)| 5)) .cse2 .cse3 .cse14)))) [2020-10-26 20:37:23,886 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,886 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,887 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,887 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:37:23,887 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:37:23,887 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:37:23,887 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:37:23,887 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:37:23,887 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:37:23,887 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:37:23,887 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:37:23,887 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:37:23,888 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:37:23,888 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:37:23,888 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,888 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,888 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,888 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,888 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:37:23,888 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,888 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,888 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:37:23,888 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:37:23,889 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:37:23,889 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:37:23,889 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:37:23,889 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:37:23,889 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:37:23,889 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:37:23,889 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:37:23,889 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:37:23,889 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:37:23,889 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:37:23,889 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,890 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,890 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,890 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,890 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,890 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:37:23,890 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:23,890 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:37:23,890 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:37:23,890 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:37:23,890 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:37:23,890 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:37:23,891 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:37:23,891 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:37:23,891 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:37:23,891 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:37:23,891 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:37:23,891 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:37:23,891 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:37:23,891 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:37:23,891 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:37:23,891 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:37:23,892 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (= ~a8~0 15) (= ~a21~0 ~a20~0) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:37:23,892 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:37:23,892 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:37:23,892 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| |old(~a21~0)|)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| |old(~a21~0)|)) (and (= ~a21~0 ~a17~0) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (= ~a7~0 0)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:37:23,892 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:37:23,892 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse1 (<= ~a21~0 1)) (.cse4 (<= ~a20~0 0)) (.cse2 (= ~a17~0 1)) (.cse5 (= ~a21~0 1)) (.cse0 (= ~a20~0 1)) (.cse3 (= ~a7~0 0))) (or (and .cse0 .cse1 .cse2) (not (= |old(~a20~0)| 1)) (and (= ~a16~0 6) .cse1 .cse3 .cse2 .cse4) (<= ~a21~0 0) (and .cse5 (not (= ~a8~0 13))) (and (<= ~a16~0 5) .cse1 (<= 5 ~a16~0) .cse3 .cse2 .cse4) (not (= |old(~a17~0)| 1)) (and .cse5 (not .cse2) (= ~a16~0 4) (not (= ~a7~0 1)) (not .cse0)) (and .cse5 .cse0 .cse3) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:37:23,892 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:37:23,893 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:37:23,893 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse1 (<= ~a21~0 1)) (.cse4 (<= ~a20~0 0)) (.cse2 (= ~a17~0 1)) (.cse5 (= ~a21~0 1)) (.cse0 (= ~a20~0 1)) (.cse3 (= ~a7~0 0))) (or (and .cse0 .cse1 .cse2) (not (= |old(~a20~0)| 1)) (and (= ~a16~0 6) .cse1 .cse3 .cse2 .cse4) (<= ~a21~0 0) (and .cse5 (not (= ~a8~0 13))) (and (<= ~a16~0 5) .cse1 (<= 5 ~a16~0) .cse3 .cse2 .cse4) (not (= |old(~a17~0)| 1)) (and .cse5 (not .cse2) (= ~a16~0 4) (not (= ~a7~0 1)) (not .cse0)) (and .cse5 .cse0 .cse3) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:37:23,893 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:37:23,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:37:23 BoogieIcfgContainer [2020-10-26 20:37:23,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:37:23,917 INFO L168 Benchmark]: Toolchain (without parser) took 115252.02 ms. Allocated memory was 166.7 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 139.5 MB in the beginning and 688.8 MB in the end (delta: -549.3 MB). Peak memory consumption was 789.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:23,917 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 166.7 MB. Free memory is still 138.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:37:23,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.02 ms. Allocated memory is still 166.7 MB. Free memory was 138.9 MB in the beginning and 145.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:23,918 INFO L168 Benchmark]: Boogie Preprocessor took 117.44 ms. Allocated memory is still 166.7 MB. Free memory was 145.6 MB in the beginning and 140.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:23,919 INFO L168 Benchmark]: RCFGBuilder took 1663.41 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 140.9 MB in the beginning and 149.9 MB in the end (delta: -9.0 MB). Peak memory consumption was 81.7 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:23,919 INFO L168 Benchmark]: TraceAbstraction took 112641.14 ms. Allocated memory was 200.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 149.9 MB in the beginning and 688.8 MB in the end (delta: -538.9 MB). Peak memory consumption was 765.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:23,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 166.7 MB. Free memory is still 138.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 812.02 ms. Allocated memory is still 166.7 MB. Free memory was 138.9 MB in the beginning and 145.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 117.44 ms. Allocated memory is still 166.7 MB. Free memory was 145.6 MB in the beginning and 140.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1663.41 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 140.9 MB in the beginning and 149.9 MB in the end (delta: -9.0 MB). Peak memory consumption was 81.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 112641.14 ms. Allocated memory was 200.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 149.9 MB in the beginning and 688.8 MB in the end (delta: -538.9 MB). Peak memory consumption was 765.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((((((((((a20 == 1 && a21 <= 1) && a17 == 1) || !(\old(a20) == 1)) || ((((a16 == 6 && a21 <= 1) && a7 == 0) && a17 == 1) && a20 <= 0)) || a21 <= 0) || (a21 == 1 && !(a8 == 13))) || (((((a16 <= 5 && a21 <= 1) && 5 <= a16) && a7 == 0) && a17 == 1) && a20 <= 0)) || !(\old(a17) == 1)) || ((((a21 == 1 && !(a17 == 1)) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || ((a21 == 1 && a20 == 1) && a7 == 0)) || !(\old(a20) == \old(a21))) || !(5 == \old(a16))) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 106.0s, OverallIterations: 15, TraceHistogramMax: 6, AutomataDifference: 35.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 383 SDtfs, 6024 SDslu, 590 SDs, 0 SdLazy, 13543 SolverSat, 1865 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 164 SyntacticMatches, 7 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 11.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5123occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 1033 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 631 PreInvPairs, 757 NumberOfFragments, 743 HoareAnnotationTreeSize, 631 FomulaSimplifications, 20321 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 13364 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 67.2s InterpolantComputationTime, 2789 NumberOfCodeBlocks, 2789 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2774 ConstructedInterpolants, 0 QuantifiedInterpolants, 2361339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 1581/1864 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...