/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_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:31:27,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:31:27,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:31:27,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:31:27,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:31:27,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:31:27,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:31:27,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:31:27,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:31:27,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:31:27,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:31:27,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:31:27,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:31:27,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:31:27,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:31:27,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:31:27,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:31:27,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:31:27,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:31:27,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:31:27,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:31:27,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:31:27,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:31:27,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:31:27,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:31:27,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:31:27,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:31:27,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:31:27,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:31:27,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:31:27,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:31:27,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:31:27,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:31:27,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:31:27,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:31:27,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:31:27,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:31:27,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:31:27,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:31:27,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:31:27,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:31:27,313 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 20:31:27,342 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:31:27,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:31:27,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:31:27,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:31:27,345 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:31:27,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:31:27,345 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:31:27,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:31:27,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:31:27,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:31:27,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:31:27,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:31:27,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:31:27,346 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:31:27,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:31:27,349 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:31:27,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:31:27,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:31:27,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:31:27,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:31:27,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:31:27,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:31:27,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:31:27,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:31:27,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:31:27,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:31:27,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:31:27,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:31:27,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:31:27,353 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:31:27,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:31:27,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:31:27,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:31:27,794 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:31:27,795 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:31:27,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label10.c [2020-10-26 20:31:27,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65eee343c/b8e3a8ca3b2c4458a98330be83bc3230/FLAGacca788dc [2020-10-26 20:31:28,758 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:31:28,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label10.c [2020-10-26 20:31:28,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65eee343c/b8e3a8ca3b2c4458a98330be83bc3230/FLAGacca788dc [2020-10-26 20:31:28,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65eee343c/b8e3a8ca3b2c4458a98330be83bc3230 [2020-10-26 20:31:28,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:31:28,956 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:31:28,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:31:28,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:31:28,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:31:28,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:31:28" (1/1) ... [2020-10-26 20:31:28,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62043c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:28, skipping insertion in model container [2020-10-26 20:31:28,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:31:28" (1/1) ... [2020-10-26 20:31:28,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:31:29,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:31:29,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:31:29,552 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:31:29,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:31:29,812 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:31:29,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:29 WrapperNode [2020-10-26 20:31:29,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:31:29,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:31:29,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:31:29,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:31:29,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:29" (1/1) ... [2020-10-26 20:31:29,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:29" (1/1) ... [2020-10-26 20:31:29,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:29" (1/1) ... [2020-10-26 20:31:29,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:29" (1/1) ... [2020-10-26 20:31:29,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:29" (1/1) ... [2020-10-26 20:31:29,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:29" (1/1) ... [2020-10-26 20:31:29,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:29" (1/1) ... [2020-10-26 20:31:29,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:31:29,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:31:29,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:31:29,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:31:29,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:29" (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 20:31:30,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:31:30,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:31:30,076 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:31:30,076 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:31:30,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:31:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:31:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:31:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:31:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:31:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:31:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:31:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:31:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:31:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:31:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:31:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:31:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:31:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:31:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:31:31,594 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:31:31,595 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:31:31,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:31:31 BoogieIcfgContainer [2020-10-26 20:31:31,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:31:31,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:31:31,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:31:31,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:31:31,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:31:28" (1/3) ... [2020-10-26 20:31:31,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@864afcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:31:31, skipping insertion in model container [2020-10-26 20:31:31,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:29" (2/3) ... [2020-10-26 20:31:31,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@864afcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:31:31, skipping insertion in model container [2020-10-26 20:31:31,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:31:31" (3/3) ... [2020-10-26 20:31:31,613 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label10.c [2020-10-26 20:31:31,627 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:31:31,634 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:31:31,658 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:31:31,712 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:31:31,713 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:31:31,713 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:31:31,713 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:31:31,713 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:31:31,714 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:31:31,714 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:31:31,714 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:31:31,752 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:31:31,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-26 20:31:31,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:31,787 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] [2020-10-26 20:31:31,787 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:31,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:31,798 INFO L82 PathProgramCache]: Analyzing trace with hash 633246507, now seen corresponding path program 1 times [2020-10-26 20:31:31,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:31,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862399474] [2020-10-26 20:31:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:32,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:32,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:34,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:34,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 20:31:34,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:31:34,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2446 [2020-10-26 20:31:34,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:31:34,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:31:34,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-26 20:31:34,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:31:34,797 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:31:34,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:34,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:34,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:34,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:34,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:31:34,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:34,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:34,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:34,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:31:34,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:31:34,912 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 20:31:34,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862399474] [2020-10-26 20:31:34,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:31:34,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:31:34,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714024186] [2020-10-26 20:31:34,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:31:34,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:34,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:31:34,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:31:34,940 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-26 20:31:35,123 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:31:37,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:31:37,040 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-26 20:31:37,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:31:37,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2020-10-26 20:31:37,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:31:37,059 INFO L225 Difference]: With dead ends: 562 [2020-10-26 20:31:37,059 INFO L226 Difference]: Without dead ends: 287 [2020-10-26 20:31:37,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:31:37,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-26 20:31:37,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-26 20:31:37,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-26 20:31:37,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-26 20:31:37,148 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 117 [2020-10-26 20:31:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:31:37,149 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-26 20:31:37,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:31:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-26 20:31:37,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-26 20:31:37,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:37,157 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:31:37,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:31:37,158 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:37,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:37,159 INFO L82 PathProgramCache]: Analyzing trace with hash 318363498, now seen corresponding path program 1 times [2020-10-26 20:31:37,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:37,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449373133] [2020-10-26 20:31:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:37,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:37,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:39,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:41,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:41,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 20:31:41,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:31:41,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4340 [2020-10-26 20:31:41,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:41,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:31:41,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:31:41,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:31:41,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:41,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:41,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:41,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:41,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:41,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:41,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:31:41,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:41,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:41,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:41,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:31:41,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:31:41,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:31:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:41,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:41,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:41,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:31:41,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:41,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:31:41,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:31:41,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:31:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:31:41,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449373133] [2020-10-26 20:31:41,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:31:41,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:31:41,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515236457] [2020-10-26 20:31:41,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:31:41,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:41,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:31:41,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:31:41,929 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 7 states. [2020-10-26 20:31:42,076 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:31:43,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:31:43,993 INFO L93 Difference]: Finished difference Result 860 states and 1249 transitions. [2020-10-26 20:31:43,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:31:43,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2020-10-26 20:31:43,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:31:44,007 INFO L225 Difference]: With dead ends: 860 [2020-10-26 20:31:44,007 INFO L226 Difference]: Without dead ends: 585 [2020-10-26 20:31:44,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 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 20:31:44,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-10-26 20:31:44,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 561. [2020-10-26 20:31:44,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-26 20:31:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 765 transitions. [2020-10-26 20:31:44,081 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 765 transitions. Word has length 126 [2020-10-26 20:31:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:31:44,082 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 765 transitions. [2020-10-26 20:31:44,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:31:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 765 transitions. [2020-10-26 20:31:44,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-26 20:31:44,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:44,094 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:31:44,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:31:44,095 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:44,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:44,097 INFO L82 PathProgramCache]: Analyzing trace with hash -351929684, now seen corresponding path program 1 times [2020-10-26 20:31:44,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:44,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725857535] [2020-10-26 20:31:44,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:44,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:44,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:44,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:45,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:49,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:49,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-26 20:31:49,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:31:49,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-26 20:31:49,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:31:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:31:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:31:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:49,321 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:31:49,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:49,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:49,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:49,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:49,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:49,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:31:49,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:49,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:49,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:49,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:31:49,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:31:49,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:31:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:49,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:49,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:49,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-26 20:31:49,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:49,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:31:49,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:49,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:31:49,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:49,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-26 20:31:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:49,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:49,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:49,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:31:49,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:49,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:31:49,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:49,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:49,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:31:49,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:49,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:49,538 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:31:49,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725857535] [2020-10-26 20:31:49,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:31:49,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:31:49,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841050103] [2020-10-26 20:31:49,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:31:49,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:49,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:31:49,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:31:49,544 INFO L87 Difference]: Start difference. First operand 561 states and 765 transitions. Second operand 7 states. [2020-10-26 20:31:49,678 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:31:51,549 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:31:51,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:31:51,651 INFO L93 Difference]: Finished difference Result 1700 states and 2402 transitions. [2020-10-26 20:31:51,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:31:51,652 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-10-26 20:31:51,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:31:51,670 INFO L225 Difference]: With dead ends: 1700 [2020-10-26 20:31:51,672 INFO L226 Difference]: Without dead ends: 1145 [2020-10-26 20:31:51,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:31:51,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2020-10-26 20:31:51,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1133. [2020-10-26 20:31:51,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2020-10-26 20:31:51,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1495 transitions. [2020-10-26 20:31:51,755 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1495 transitions. Word has length 140 [2020-10-26 20:31:51,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:31:51,758 INFO L481 AbstractCegarLoop]: Abstraction has 1133 states and 1495 transitions. [2020-10-26 20:31:51,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:31:51,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1495 transitions. [2020-10-26 20:31:51,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-26 20:31:51,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:51,780 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:31:51,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:31:51,780 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:51,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:51,781 INFO L82 PathProgramCache]: Analyzing trace with hash -734489617, now seen corresponding path program 1 times [2020-10-26 20:31:51,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:51,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82972453] [2020-10-26 20:31:51,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:51,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:51,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:52,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:52,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:56,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:56,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:56,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-26 20:31:56,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:31:56,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-26 20:31:56,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:31:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:31:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:31:56,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:56,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:57,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:57,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:57,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:57,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:57,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:31:57,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:57,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:57,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:57,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:31:57,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:57,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:31:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:57,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:57,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:57,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:57,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:31:57,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:31:57,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:31:57,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:57,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:57,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:57,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:31:57,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:57,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:31:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:57,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:57,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:57,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:31:57,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:31:57,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:31:57,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:57,158 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:31:57,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [82972453] [2020-10-26 20:31:57,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:31:57,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:31:57,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160258607] [2020-10-26 20:31:57,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:31:57,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:57,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:31:57,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:31:57,161 INFO L87 Difference]: Start difference. First operand 1133 states and 1495 transitions. Second operand 7 states. [2020-10-26 20:31:59,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:31:59,264 INFO L93 Difference]: Finished difference Result 3446 states and 4786 transitions. [2020-10-26 20:31:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:31:59,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-10-26 20:31:59,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:31:59,282 INFO L225 Difference]: With dead ends: 3446 [2020-10-26 20:31:59,283 INFO L226 Difference]: Without dead ends: 2319 [2020-10-26 20:31:59,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 1 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 20:31:59,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2020-10-26 20:31:59,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2011. [2020-10-26 20:31:59,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2011 states. [2020-10-26 20:31:59,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2011 states to 2011 states and 2624 transitions. [2020-10-26 20:31:59,404 INFO L78 Accepts]: Start accepts. Automaton has 2011 states and 2624 transitions. Word has length 141 [2020-10-26 20:31:59,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:31:59,405 INFO L481 AbstractCegarLoop]: Abstraction has 2011 states and 2624 transitions. [2020-10-26 20:31:59,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:31:59,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2011 states and 2624 transitions. [2020-10-26 20:31:59,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-26 20:31:59,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:59,414 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:59,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:31:59,414 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:59,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:59,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1233401799, now seen corresponding path program 1 times [2020-10-26 20:31:59,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:59,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845211888] [2020-10-26 20:31:59,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:59,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:59,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:59,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:01,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:02,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:02,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-26 20:32:02,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:02,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2902 [2020-10-26 20:32:02,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:32:02,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:02,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:02,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:02,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:02,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:02,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:02,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:02,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:02,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:02,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:02,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:02,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:02,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:02,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:02,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:02,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:02,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:32:02,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:02,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:02,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:02,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:02,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:02,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:02,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:02,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:02,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:32:02,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:02,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 20:32:02,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 20:32:02,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:02,702 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:32:02,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845211888] [2020-10-26 20:32:02,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:02,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:02,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090953070] [2020-10-26 20:32:02,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:02,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:02,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:02,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:02,705 INFO L87 Difference]: Start difference. First operand 2011 states and 2624 transitions. Second operand 8 states. [2020-10-26 20:32:02,843 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:32:04,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:04,700 INFO L93 Difference]: Finished difference Result 4648 states and 6394 transitions. [2020-10-26 20:32:04,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:32:04,701 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-10-26 20:32:04,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:04,720 INFO L225 Difference]: With dead ends: 4648 [2020-10-26 20:32:04,720 INFO L226 Difference]: Without dead ends: 2643 [2020-10-26 20:32:04,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:04,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2643 states. [2020-10-26 20:32:04,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 2581. [2020-10-26 20:32:04,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2581 states. [2020-10-26 20:32:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 3275 transitions. [2020-10-26 20:32:04,845 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 3275 transitions. Word has length 153 [2020-10-26 20:32:04,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:04,847 INFO L481 AbstractCegarLoop]: Abstraction has 2581 states and 3275 transitions. [2020-10-26 20:32:04,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 3275 transitions. [2020-10-26 20:32:04,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-26 20:32:04,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:04,856 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:04,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:32:04,857 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:04,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:04,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1313138089, now seen corresponding path program 1 times [2020-10-26 20:32:04,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:04,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527717607] [2020-10-26 20:32:04,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:04,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:04,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:05,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:09,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:09,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:09,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-26 20:32:09,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:09,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-26 20:32:09,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:09,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:09,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:09,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:32:09,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:10,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:10,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:10,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:10,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:10,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:10,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:32:10,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:10,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:10,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:10,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:10,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:10,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:10,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:10,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:10,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:10,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:10,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:10,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:32:10,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:10,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:10,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:10,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:10,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:10,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:10,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:10,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:10,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:32:10,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:10,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-26 20:32:10,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:32:10,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:10,463 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:32:10,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527717607] [2020-10-26 20:32:10,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:10,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:10,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363772309] [2020-10-26 20:32:10,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:10,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:10,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:10,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:10,468 INFO L87 Difference]: Start difference. First operand 2581 states and 3275 transitions. Second operand 8 states. [2020-10-26 20:32:11,589 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:32:12,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:12,459 INFO L93 Difference]: Finished difference Result 5331 states and 6803 transitions. [2020-10-26 20:32:12,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:12,459 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-10-26 20:32:12,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:12,479 INFO L225 Difference]: With dead ends: 5331 [2020-10-26 20:32:12,480 INFO L226 Difference]: Without dead ends: 2756 [2020-10-26 20:32:12,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:32:12,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2020-10-26 20:32:12,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2736. [2020-10-26 20:32:12,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2736 states. [2020-10-26 20:32:12,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3404 transitions. [2020-10-26 20:32:12,595 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3404 transitions. Word has length 161 [2020-10-26 20:32:12,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:12,596 INFO L481 AbstractCegarLoop]: Abstraction has 2736 states and 3404 transitions. [2020-10-26 20:32:12,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3404 transitions. [2020-10-26 20:32:12,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-26 20:32:12,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:12,606 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, 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] [2020-10-26 20:32:12,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:32:12,606 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:12,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:12,607 INFO L82 PathProgramCache]: Analyzing trace with hash -923562462, now seen corresponding path program 1 times [2020-10-26 20:32:12,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:12,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579081462] [2020-10-26 20:32:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:12,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:12,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:12,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:13,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:15,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:17,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:17,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-26 20:32:17,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:32:17,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4543 [2020-10-26 20:32:17,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:32:17,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:17,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:17,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:17,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:17,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:17,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:17,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:32:17,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:17,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:17,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:17,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:17,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:17,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:17,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:17,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:17,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:17,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:17,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:17,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:32:17,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:17,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:17,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:17,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:17,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:17,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:17,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:17,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:17,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:32:17,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:17,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:17,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:17,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:17,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:17,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:32:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:17,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:17,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:17,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:32:17,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:17,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:17,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:32:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:17,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:17,695 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 47 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:32:17,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579081462] [2020-10-26 20:32:17,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:17,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:17,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097926012] [2020-10-26 20:32:17,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:17,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:17,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:17,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:17,699 INFO L87 Difference]: Start difference. First operand 2736 states and 3404 transitions. Second operand 8 states. [2020-10-26 20:32:17,847 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:32:19,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:19,544 INFO L93 Difference]: Finished difference Result 5329 states and 6672 transitions. [2020-10-26 20:32:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:32:19,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2020-10-26 20:32:19,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:19,567 INFO L225 Difference]: With dead ends: 5329 [2020-10-26 20:32:19,567 INFO L226 Difference]: Without dead ends: 2734 [2020-10-26 20:32:19,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:32:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2020-10-26 20:32:19,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2726. [2020-10-26 20:32:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2020-10-26 20:32:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3358 transitions. [2020-10-26 20:32:19,674 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3358 transitions. Word has length 168 [2020-10-26 20:32:19,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:19,674 INFO L481 AbstractCegarLoop]: Abstraction has 2726 states and 3358 transitions. [2020-10-26 20:32:19,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:19,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3358 transitions. [2020-10-26 20:32:19,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-26 20:32:19,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:19,684 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:19,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:32:19,685 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:19,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:19,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1540936203, now seen corresponding path program 1 times [2020-10-26 20:32:19,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:19,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98967859] [2020-10-26 20:32:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:19,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:19,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:19,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:21,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:24,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:24,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-26 20:32:24,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:24,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-26 20:32:24,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:32:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:32:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:32:24,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:24,867 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:32:24,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:24,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:24,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:24,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:24,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:24,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:32:24,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:24,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:24,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:24,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:24,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:24,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:24,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:24,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:24,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:24,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:24,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:24,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:32:24,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:24,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:24,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:24,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:24,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:24,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:24,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:24,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:24,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:24,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:24,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:24,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:32:24,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:24,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:32:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:25,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:25,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:32:25,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:25,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-26 20:32:25,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:25,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:25,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:25,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:32:25,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,142 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 56 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:32:25,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98967859] [2020-10-26 20:32:25,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:25,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:25,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809038952] [2020-10-26 20:32:25,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:25,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:25,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:25,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:25,145 INFO L87 Difference]: Start difference. First operand 2726 states and 3358 transitions. Second operand 7 states. [2020-10-26 20:32:25,442 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:32:26,176 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:32:27,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:27,307 INFO L93 Difference]: Finished difference Result 4896 states and 6158 transitions. [2020-10-26 20:32:27,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:32:27,308 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-10-26 20:32:27,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:27,319 INFO L225 Difference]: With dead ends: 4896 [2020-10-26 20:32:27,319 INFO L226 Difference]: Without dead ends: 1882 [2020-10-26 20:32:27,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:32:27,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2020-10-26 20:32:27,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1854. [2020-10-26 20:32:27,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-10-26 20:32:27,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2087 transitions. [2020-10-26 20:32:27,399 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2087 transitions. Word has length 169 [2020-10-26 20:32:27,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:27,399 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2087 transitions. [2020-10-26 20:32:27,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:27,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2087 transitions. [2020-10-26 20:32:27,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-26 20:32:27,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:27,406 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, 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] [2020-10-26 20:32:27,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:32:27,407 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:27,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:27,407 INFO L82 PathProgramCache]: Analyzing trace with hash -257084532, now seen corresponding path program 1 times [2020-10-26 20:32:27,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:27,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406328058] [2020-10-26 20:32:27,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:27,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:32,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-26 20:32:32,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:32:32,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-26 20:32:32,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:32:32,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:32,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:32,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:32,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:32,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:32,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:32:32,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:32,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:32,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:32,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:32,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:32,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:32,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:32,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:32,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:32:32,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:32:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:32,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:32,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:32,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:32:32,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:32,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 20:32:32,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:32,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:32,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:32,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:32:32,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:32,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:32:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:32,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:32,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:32,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:32,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:32,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:32,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:32,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:32:32,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:32,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:32,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:32:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:32,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:32,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:32:32,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:32,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:32:32,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:32,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:32,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:32:32,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:32,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:32,882 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 82 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:32:32,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406328058] [2020-10-26 20:32:32,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:32,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:32,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565841729] [2020-10-26 20:32:32,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:32,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:32,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:32,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:32,885 INFO L87 Difference]: Start difference. First operand 1854 states and 2087 transitions. Second operand 7 states. [2020-10-26 20:32:34,145 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:32:34,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:34,549 INFO L93 Difference]: Finished difference Result 3575 states and 4040 transitions. [2020-10-26 20:32:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:32:34,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-10-26 20:32:34,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:34,559 INFO L225 Difference]: With dead ends: 3575 [2020-10-26 20:32:34,559 INFO L226 Difference]: Without dead ends: 1862 [2020-10-26 20:32:34,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:32:34,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2020-10-26 20:32:34,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1856. [2020-10-26 20:32:34,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1856 states. [2020-10-26 20:32:34,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 2075 transitions. [2020-10-26 20:32:34,623 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 2075 transitions. Word has length 198 [2020-10-26 20:32:34,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:34,623 INFO L481 AbstractCegarLoop]: Abstraction has 1856 states and 2075 transitions. [2020-10-26 20:32:34,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:34,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 2075 transitions. [2020-10-26 20:32:34,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-26 20:32:34,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:34,631 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2020-10-26 20:32:34,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:32:34,632 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:34,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:34,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1833156766, now seen corresponding path program 1 times [2020-10-26 20:32:34,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:34,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170678322] [2020-10-26 20:32:34,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:34,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:35,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:36,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-26 20:32:36,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:36,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1610 [2020-10-26 20:32:36,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:32:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:32:36,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:36,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:36,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:36,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:36,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:36,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:32:36,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:36,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:36,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:36,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:36,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:36,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:36,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:36,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:36,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:36,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:32:36,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:36,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:36,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:36,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:36,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:32:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:36,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:36,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:32:36,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:36,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:32:36,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:36,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:36,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:32:36,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:36,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:32:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:36,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:36,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:36,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:36,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:32:36,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:36,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:36,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:32:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:36,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:36,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:32:36,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:36,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:32:36,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:32:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:36,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:36,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-26 20:32:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:36,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:36,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:32:36,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:36,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:32:36,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:36,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:32:36,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:36,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:36,735 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 173 proven. 26 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-26 20:32:36,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170678322] [2020-10-26 20:32:36,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:36,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:36,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048565431] [2020-10-26 20:32:36,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:36,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:36,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:36,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:36,738 INFO L87 Difference]: Start difference. First operand 1856 states and 2075 transitions. Second operand 7 states. [2020-10-26 20:32:37,237 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:32:37,463 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:32:38,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:38,658 INFO L93 Difference]: Finished difference Result 3852 states and 4376 transitions. [2020-10-26 20:32:38,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:32:38,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 260 [2020-10-26 20:32:38,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:38,659 INFO L225 Difference]: With dead ends: 3852 [2020-10-26 20:32:38,659 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:32:38,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 20:32:38,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:32:38,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:32:38,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:32:38,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:32:38,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 260 [2020-10-26 20:32:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:38,668 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:32:38,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:32:38,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:32:38,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:32:38,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:32:39,326 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 161 [2020-10-26 20:32:39,597 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 161 [2020-10-26 20:32:39,812 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 33 [2020-10-26 20:32:40,534 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 53 [2020-10-26 20:32:40,869 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 38 [2020-10-26 20:32:40,977 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:32:41,312 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 38 [2020-10-26 20:32:41,451 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2020-10-26 20:32:41,455 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:32:41,455 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:32:41,455 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:32:41,456 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:32:41,456 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:32:41,456 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 20:32:41,456 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:32:41,456 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,456 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,457 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,457 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,457 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,457 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,457 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:32:41,457 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:32:41,457 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:32:41,457 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:32:41,457 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:32:41,457 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:32:41,458 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:32:41,458 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:32:41,458 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:32:41,458 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:32:41,458 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:32:41,458 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:32:41,458 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,458 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,458 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,458 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,459 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,459 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,459 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:32:41,459 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:32:41,459 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:32:41,459 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:32:41,459 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:32:41,459 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:32:41,459 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:32:41,459 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:32:41,459 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:32:41,460 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:32:41,460 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,460 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,460 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,460 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,460 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,460 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,460 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:32:41,460 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:32:41,460 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:32:41,461 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:32:41,461 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:32:41,461 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:32:41,461 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:32:41,461 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:32:41,461 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:32:41,461 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:32:41,461 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:32:41,461 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:32:41,461 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:32:41,462 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:32:41,462 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:32:41,462 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,462 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,462 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,462 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,462 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,462 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:32:41,462 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:32:41,462 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:32:41,462 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:32:41,463 INFO L270 CegarLoopResult]: At program point L508(line 508) the Hoare annotation is: (let ((.cse0 (not (= |old(~a7~0)| 1))) (.cse1 (not (= 0 |old(~a20~0)|))) (.cse3 (not (= |old(~a21~0)| 1))) (.cse2 (not (= 4 |old(~a16~0)|)))) (and (or (not (= |old(~a17~0)| 1)) .cse0 .cse1 .cse2) (or .cse3 (not (= |old(~a7~0)| 0))) (or .cse0 (not (= 5 |old(~a16~0)|)) .cse3) (or .cse0 (not (= |old(~a20~0)| 1))) (or .cse0 .cse1 .cse3 .cse2))) [2020-10-26 20:32:41,463 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:32:41,463 INFO L274 CegarLoopResult]: For program point L508-1(line 508) no Hoare annotation was computed. [2020-10-26 20:32:41,463 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:32:41,463 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:32:41,463 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:32:41,463 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,463 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,463 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,464 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,464 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,464 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:32:41,464 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:32:41,464 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:32:41,464 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:32:41,464 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:32:41,464 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:32:41,464 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:32:41,464 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:32:41,465 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:32:41,465 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:32:41,465 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:32:41,465 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:32:41,465 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:32:41,465 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,465 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,465 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,465 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,465 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,466 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:32:41,466 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:32:41,466 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:32:41,466 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,466 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,466 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:32:41,466 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:32:41,466 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:32:41,466 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:32:41,466 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:32:41,467 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:32:41,467 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,467 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,467 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,467 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,467 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:32:41,467 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,467 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:32:41,467 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:32:41,467 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:32:41,467 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,468 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,469 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,470 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse7 (not (= 0 |old(~a20~0)|))) (.cse10 (= ~a21~0 |old(~a21~0)|)) (.cse5 (= ~a16~0 4)) (.cse9 (not (= 4 |old(~a16~0)|))) (.cse11 (= ~a16~0 |old(~a16~0)|)) (.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a21~0 1)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|)) (.cse6 (not (= |old(~a7~0)| 1))) (.cse8 (not (= |old(~a21~0)| 1)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9) (or .cse6 (not (= |old(~a20~0)| 1)) (and .cse0 .cse1 .cse10 .cse3 .cse11 .cse4)) (or (not (= |old(~a17~0)| 1)) .cse6 .cse7 (and .cse0 .cse1 .cse10 .cse3 .cse4 .cse5) .cse9) (or (and .cse1 .cse2 .cse3 .cse11 .cse4 (= ~a7~0 0)) .cse8 (not (= |old(~a7~0)| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= 5 ~a16~0)) .cse6 (not (= 5 |old(~a16~0)|)) .cse8))) [2020-10-26 20:32:41,470 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,470 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,470 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,470 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:32:41,470 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:32:41,470 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:32:41,470 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,471 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:32:41,472 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:32:41,473 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:32:41,473 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:32:41,473 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,473 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,473 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,473 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,473 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,473 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:32:41,473 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:41,473 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:32:41,473 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:32:41,474 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:32:41,475 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:32:41,475 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:32:41,475 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:32:41,475 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:32:41,475 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:32:41,475 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:32:41,476 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a20~0 0)) (.cse3 (= ~a21~0 1)) (.cse1 (= ~a7~0 1)) (.cse2 (= ~a16~0 4))) (or (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 .cse2 (= ~a17~0 1)) (not (= |old(~a20~0)| 1)) (and .cse3 (= ~a7~0 0)) (and .cse1 (= ~a20~0 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (and .cse3 .cse1 (= 5 ~a16~0)) (and .cse0 .cse3 .cse1 .cse2) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:32:41,476 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:32:41,476 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:32:41,476 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a20~0 0)) (.cse3 (= ~a21~0 1)) (.cse1 (= ~a7~0 1)) (.cse2 (= ~a16~0 4))) (or (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 .cse2 (= ~a17~0 1)) (not (= |old(~a20~0)| 1)) (and .cse3 (= ~a7~0 0)) (and .cse1 (= ~a20~0 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (and .cse3 .cse1 (= 5 ~a16~0)) (and .cse0 .cse3 .cse1 .cse2) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:32:41,476 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:32:41,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:32:41 BoogieIcfgContainer [2020-10-26 20:32:41,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:32:41,500 INFO L168 Benchmark]: Toolchain (without parser) took 72547.49 ms. Allocated memory was 151.0 MB in the beginning and 947.9 MB in the end (delta: 796.9 MB). Free memory was 124.9 MB in the beginning and 423.5 MB in the end (delta: -298.6 MB). Peak memory consumption was 498.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:32:41,500 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:32:41,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 854.80 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 129.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:32:41,502 INFO L168 Benchmark]: Boogie Preprocessor took 155.15 ms. Allocated memory is still 151.0 MB. Free memory was 129.6 MB in the beginning and 124.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:32:41,502 INFO L168 Benchmark]: RCFGBuilder took 1627.55 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 102.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:32:41,503 INFO L168 Benchmark]: TraceAbstraction took 69894.29 ms. Allocated memory was 151.0 MB in the beginning and 947.9 MB in the end (delta: 796.9 MB). Free memory was 102.0 MB in the beginning and 423.5 MB in the end (delta: -321.5 MB). Peak memory consumption was 474.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:32:41,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 854.80 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 129.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 155.15 ms. Allocated memory is still 151.0 MB. Free memory was 129.6 MB in the beginning and 124.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1627.55 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 102.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 69894.29 ms. Allocated memory was 151.0 MB in the beginning and 947.9 MB in the end (delta: 796.9 MB). Free memory was 102.0 MB in the beginning and 423.5 MB in the end (delta: -321.5 MB). Peak memory consumption was 474.9 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: ((((((((!(\old(a17) == 1) || (((a20 == 0 && a7 == 1) && a16 == 4) && a17 == 1)) || !(\old(a20) == 1)) || (a21 == 1 && a7 == 0)) || (a7 == 1 && a20 == 1)) || !(5 == \old(a16))) || !(\old(a21) == 1)) || ((a21 == 1 && a7 == 1) && 5 == a16)) || (((a20 == 0 && a21 == 1) && a7 == 1) && a16 == 4)) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 66.9s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 20.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 275 SDtfs, 4308 SDslu, 360 SDs, 0 SdLazy, 7644 SolverSat, 1512 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 83 SyntacticMatches, 3 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2736occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 474 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 268 PreInvPairs, 306 NumberOfFragments, 515 HoareAnnotationTreeSize, 268 FomulaSimplifications, 53840 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 5488 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 44.6s InterpolantComputationTime, 1633 NumberOfCodeBlocks, 1633 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1623 ConstructedInterpolants, 0 QuantifiedInterpolants, 879876 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 704/803 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...