/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/recursive-simple/id_i10_o10-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:06:58,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:06:58,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:06:58,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:06:58,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:06:58,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:06:58,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:06:58,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:06:58,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:06:58,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:06:58,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:06:58,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:06:58,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:06:58,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:06:58,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:06:58,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:06:58,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:06:58,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:06:58,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:06:58,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:06:58,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:06:58,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:06:58,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:06:58,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:06:58,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:06:58,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:06:58,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:06:58,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:06:58,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:06:58,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:06:58,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:06:58,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:06:58,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:06:58,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:06:58,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:06:58,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:06:58,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:06:58,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:06:58,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:06:58,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:06:58,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:06:58,426 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 [2020-10-27 04:06:58,472 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:06:58,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:06:58,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:06:58,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:06:58,476 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:06:58,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:06:58,476 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:06:58,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:06:58,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:06:58,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:06:58,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:06:58,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:06:58,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:06:58,480 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:06:58,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:06:58,481 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:06:58,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:06:58,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:06:58,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:06:58,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:06:58,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:06:58,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:06:58,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:06:58,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:06:58,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:06:58,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:06:58,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:06:58,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:06:58,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:06:58,484 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:06:58,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:06:58,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:06:58,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:06:58,928 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:06:58,929 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:06:58,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i10_o10-1.c [2020-10-27 04:06:59,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e0dfa9bd/34bc5b124e6242248b05992afa9bec62/FLAG4574bde71 [2020-10-27 04:06:59,613 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:06:59,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i10_o10-1.c [2020-10-27 04:06:59,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e0dfa9bd/34bc5b124e6242248b05992afa9bec62/FLAG4574bde71 [2020-10-27 04:06:59,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e0dfa9bd/34bc5b124e6242248b05992afa9bec62 [2020-10-27 04:07:00,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:07:00,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:07:00,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:07:00,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:07:00,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:07:00,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:07:00" (1/1) ... [2020-10-27 04:07:00,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d306031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:00, skipping insertion in model container [2020-10-27 04:07:00,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:07:00" (1/1) ... [2020-10-27 04:07:00,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:07:00,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:07:00,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:07:00,206 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:07:00,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:07:00,241 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:07:00,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:00 WrapperNode [2020-10-27 04:07:00,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:07:00,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:07:00,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:07:00,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:07:00,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:00" (1/1) ... [2020-10-27 04:07:00,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:00" (1/1) ... [2020-10-27 04:07:00,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:00" (1/1) ... [2020-10-27 04:07:00,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:00" (1/1) ... [2020-10-27 04:07:00,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:00" (1/1) ... [2020-10-27 04:07:00,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:00" (1/1) ... [2020-10-27 04:07:00,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:00" (1/1) ... [2020-10-27 04:07:00,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:07:00,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:07:00,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:07:00,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:07:00,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:00" (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 [2020-10-27 04:07:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:07:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:07:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:07:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-27 04:07:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:07:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 04:07:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:07:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:07:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:07:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:07:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-27 04:07:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:07:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:07:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:07:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:07:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:07:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:07:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:07:00,629 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:07:00,629 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 04:07:00,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:07:00 BoogieIcfgContainer [2020-10-27 04:07:00,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:07:00,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:07:00,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:07:00,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:07:00,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:07:00" (1/3) ... [2020-10-27 04:07:00,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70818ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:07:00, skipping insertion in model container [2020-10-27 04:07:00,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:07:00" (2/3) ... [2020-10-27 04:07:00,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70818ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:07:00, skipping insertion in model container [2020-10-27 04:07:00,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:07:00" (3/3) ... [2020-10-27 04:07:00,644 INFO L111 eAbstractionObserver]: Analyzing ICFG id_i10_o10-1.c [2020-10-27 04:07:00,660 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:07:00,666 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:07:00,695 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:07:00,767 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:07:00,770 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:07:00,770 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:07:00,771 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:07:00,771 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:07:00,771 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:07:00,771 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:07:00,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:07:00,810 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-27 04:07:00,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 04:07:00,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:00,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:00,822 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:00,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:00,830 INFO L82 PathProgramCache]: Analyzing trace with hash 560135365, now seen corresponding path program 1 times [2020-10-27 04:07:00,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:00,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536436377] [2020-10-27 04:07:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:01,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:01,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:01,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:01,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 641 [2020-10-27 04:07:01,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:01,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:07:01,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:01,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:07:01,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 04:07:01,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:01,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:01,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:01,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:01,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:07:01,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:01,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:07:01,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:01,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:01,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:01,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:01,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:07:01,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:07:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:07:01,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:01,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:07:01,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536436377] [2020-10-27 04:07:01,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:07:01,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 04:07:01,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689981700] [2020-10-27 04:07:01,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 04:07:01,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:01,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 04:07:01,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 04:07:01,922 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2020-10-27 04:07:02,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:02,283 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2020-10-27 04:07:02,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 04:07:02,286 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-27 04:07:02,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:02,296 INFO L225 Difference]: With dead ends: 36 [2020-10-27 04:07:02,297 INFO L226 Difference]: Without dead ends: 20 [2020-10-27 04:07:02,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:07:02,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-27 04:07:02,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-27 04:07:02,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-27 04:07:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-27 04:07:02,352 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-10-27 04:07:02,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:02,352 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-27 04:07:02,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 04:07:02,353 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-27 04:07:02,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 04:07:02,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:02,355 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:02,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:07:02,356 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:02,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:02,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1295611761, now seen corresponding path program 1 times [2020-10-27 04:07:02,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:02,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932418926] [2020-10-27 04:07:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:02,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:02,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:02,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:02,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:02,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:02,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-10-27 04:07:02,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:02,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:07:02,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:02,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:07:02,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:03,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:03,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:03,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:03,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:03,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:03,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:03,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:03,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:03,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:03,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:03,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:03,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:03,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:03,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:03,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:03,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:07:03,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:07:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:07:03,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:03,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:03,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:03,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:03,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:03,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:07:03,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:03,186 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 04:07:03,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932418926] [2020-10-27 04:07:03,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:03,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 04:07:03,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891389468] [2020-10-27 04:07:03,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:07:03,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:03,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:07:03,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:07:03,190 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-10-27 04:07:03,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:03,584 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-27 04:07:03,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 04:07:03,585 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-27 04:07:03,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:03,586 INFO L225 Difference]: With dead ends: 28 [2020-10-27 04:07:03,587 INFO L226 Difference]: Without dead ends: 23 [2020-10-27 04:07:03,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 04:07:03,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-27 04:07:03,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-27 04:07:03,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-27 04:07:03,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-10-27 04:07:03,596 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2020-10-27 04:07:03,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:03,597 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-10-27 04:07:03,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:07:03,597 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-10-27 04:07:03,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-27 04:07:03,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:03,598 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:03,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:07:03,599 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:03,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:03,600 INFO L82 PathProgramCache]: Analyzing trace with hash -116387003, now seen corresponding path program 2 times [2020-10-27 04:07:03,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:03,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1423426055] [2020-10-27 04:07:03,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:03,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:03,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:04,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:04,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:04,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:04,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-10-27 04:07:04,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:07:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:04,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 04:07:04,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:04,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:04,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:04,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:04,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:04,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:04,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:07:04,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:04,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:04,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:04,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:04,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:04,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:04,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:04,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:04,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 04:07:04,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:04,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:07:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 04:07:04,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:04,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:04,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:04,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:04,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:07:04,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:04,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:04,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:04,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:04,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:04,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:04,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:04,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:04,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:04,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:04,535 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 04:07:04,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1423426055] [2020-10-27 04:07:04,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:04,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 04:07:04,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792997629] [2020-10-27 04:07:04,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:07:04,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:04,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:07:04,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:07:04,538 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 8 states. [2020-10-27 04:07:04,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:04,962 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-27 04:07:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 04:07:04,963 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-10-27 04:07:04,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:04,964 INFO L225 Difference]: With dead ends: 31 [2020-10-27 04:07:04,964 INFO L226 Difference]: Without dead ends: 26 [2020-10-27 04:07:04,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:07:04,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-27 04:07:04,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-27 04:07:04,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-27 04:07:04,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-27 04:07:04,973 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 27 [2020-10-27 04:07:04,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:04,973 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-27 04:07:04,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:07:04,974 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-27 04:07:04,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-27 04:07:04,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:04,975 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:04,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:07:04,975 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:04,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:04,976 INFO L82 PathProgramCache]: Analyzing trace with hash -738125937, now seen corresponding path program 3 times [2020-10-27 04:07:04,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:04,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353833088] [2020-10-27 04:07:04,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:04,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:05,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:06,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:06,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:06,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:06,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1148 [2020-10-27 04:07:06,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:07:06,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:06,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 04:07:06,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:06,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:06,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:06,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:06,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:06,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:06,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:06,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:06,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:06,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:06,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:06,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:06,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:06,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 04:07:06,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:06,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:07:06,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:06,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 04:07:06,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:06,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:06,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:06,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:06,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:06,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:06,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 04:07:06,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:06,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:06,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:06,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:06,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:06,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:06,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:06,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:06,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:06,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:06,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:07:06,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:06,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:06,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:06,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:06,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:06,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:06,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:06,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:06,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:06,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:06,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-27 04:07:06,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353833088] [2020-10-27 04:07:06,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:06,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 04:07:06,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504428361] [2020-10-27 04:07:06,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:07:06,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:06,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:07:06,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:07:06,413 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-10-27 04:07:06,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:06,723 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-27 04:07:06,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 04:07:06,723 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-10-27 04:07:06,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:06,725 INFO L225 Difference]: With dead ends: 34 [2020-10-27 04:07:06,725 INFO L226 Difference]: Without dead ends: 29 [2020-10-27 04:07:06,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-10-27 04:07:06,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-27 04:07:06,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-27 04:07:06,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-27 04:07:06,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-27 04:07:06,733 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 33 [2020-10-27 04:07:06,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:06,733 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-27 04:07:06,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:07:06,734 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-27 04:07:06,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-27 04:07:06,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:06,735 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:06,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:07:06,735 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:06,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:06,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1342585285, now seen corresponding path program 4 times [2020-10-27 04:07:06,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:06,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025310501] [2020-10-27 04:07:06,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:06,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:06,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:07,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:07,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:07:07,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:07,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 953 [2020-10-27 04:07:07,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:07,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 04:07:07,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:07,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 04:07:07,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:07,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:07,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:07,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:07,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:07,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:07,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:07,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:07,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:07:07,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:07,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:07,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:07,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:07,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:07,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 04:07:07,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 04:07:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 04:07:07,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:07,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:07,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:07,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:07,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:07,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 04:07:07,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:07,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:07,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:07,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:07,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:07:07,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:08,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:08,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:08,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:08,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:08,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 04:07:08,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:08,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:08,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:07:08,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:08,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:08,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:08,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:08,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:08,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:07:08,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:08,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:08,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:08,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:08,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:08,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:08,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:08,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:08,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:08,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:08,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:07:08,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:08,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:08,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:08,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:08,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 04:07:08,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025310501] [2020-10-27 04:07:08,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:08,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 04:07:08,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735108694] [2020-10-27 04:07:08,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:07:08,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:08,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:07:08,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:07:08,133 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 10 states. [2020-10-27 04:07:08,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:08,517 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-27 04:07:08,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 04:07:08,517 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2020-10-27 04:07:08,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:08,519 INFO L225 Difference]: With dead ends: 37 [2020-10-27 04:07:08,519 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 04:07:08,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-10-27 04:07:08,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 04:07:08,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-27 04:07:08,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-27 04:07:08,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-10-27 04:07:08,528 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 39 [2020-10-27 04:07:08,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:08,528 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-10-27 04:07:08,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:07:08,529 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-10-27 04:07:08,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-27 04:07:08,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:08,530 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:08,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:07:08,531 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:08,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:08,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1660180111, now seen corresponding path program 5 times [2020-10-27 04:07:08,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:08,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595574356] [2020-10-27 04:07:08,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:08,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:08,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:09,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:09,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:07:09,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:09,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1368 [2020-10-27 04:07:09,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 04:07:09,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:09,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:09,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:09,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:09,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:09,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:09,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:09,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:09,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:07:09,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:09,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:09,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:09,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:10,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:10,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:10,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:10,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-27 04:07:10,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 04:07:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 04:07:10,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:10,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:10,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:10,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:10,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:10,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:10,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-27 04:07:10,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:10,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:07:10,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:10,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:07:10,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:10,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:10,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:10,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:10,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:10,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:10,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 04:07:10,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:10,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:10,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:10,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:10,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:10,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:10,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:10,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:10,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:10,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:10,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 04:07:10,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:10,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:10,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:10,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:10,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:10,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:10,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:10,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:07:10,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:10,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:10,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:10,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:10,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:10,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:10,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:10,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:10,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:10,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:10,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:10,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:10,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:10,391 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 51 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-27 04:07:10,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595574356] [2020-10-27 04:07:10,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:10,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 04:07:10,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85659374] [2020-10-27 04:07:10,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 04:07:10,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:10,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 04:07:10,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-27 04:07:10,394 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 12 states. [2020-10-27 04:07:10,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:10,837 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-27 04:07:10,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 04:07:10,838 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-10-27 04:07:10,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:10,839 INFO L225 Difference]: With dead ends: 40 [2020-10-27 04:07:10,839 INFO L226 Difference]: Without dead ends: 35 [2020-10-27 04:07:10,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2020-10-27 04:07:10,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-27 04:07:10,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-27 04:07:10,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 04:07:10,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-27 04:07:10,848 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 45 [2020-10-27 04:07:10,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:10,848 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-27 04:07:10,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 04:07:10,848 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-27 04:07:10,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 04:07:10,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:10,850 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:10,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:07:10,850 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:10,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:10,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1624338501, now seen corresponding path program 6 times [2020-10-27 04:07:10,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:10,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010646098] [2020-10-27 04:07:10,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:10,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:11,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:12,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:12,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:07:12,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:12,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1935 [2020-10-27 04:07:12,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:07:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 04:07:12,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:12,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:12,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:12,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:12,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:12,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:12,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:07:12,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:12,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:12,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:12,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:12,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:12,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:12,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:12,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:12,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:07:12,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:12,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-27 04:07:12,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:12,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:07:12,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:12,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 04:07:12,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:13,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:13,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:13,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:13,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:13,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:13,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-27 04:07:13,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:07:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:07:13,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:13,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:13,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:13,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:13,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:13,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:13,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 04:07:13,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:13,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:07:13,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:13,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:07:13,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:13,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:13,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:13,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:13,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:13,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-27 04:07:13,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:13,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:13,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:13,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:13,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:13,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:13,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:13,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 04:07:13,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:13,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:13,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:13,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:13,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:13,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:13,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:07:13,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:13,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:13,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:13,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:13,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:13,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:13,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:13,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:13,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:13,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:13,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:13,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:13,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:13,534 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 10 proven. 67 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-10-27 04:07:13,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010646098] [2020-10-27 04:07:13,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:13,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 04:07:13,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974322223] [2020-10-27 04:07:13,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:07:13,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:13,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:07:13,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:07:13,537 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 13 states. [2020-10-27 04:07:14,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:14,021 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-27 04:07:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 04:07:14,022 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2020-10-27 04:07:14,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:14,023 INFO L225 Difference]: With dead ends: 43 [2020-10-27 04:07:14,023 INFO L226 Difference]: Without dead ends: 38 [2020-10-27 04:07:14,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2020-10-27 04:07:14,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-27 04:07:14,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-27 04:07:14,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-27 04:07:14,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-10-27 04:07:14,037 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 51 [2020-10-27 04:07:14,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:14,038 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-10-27 04:07:14,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 04:07:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-10-27 04:07:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-27 04:07:14,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:14,044 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:14,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:07:14,045 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:14,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:14,045 INFO L82 PathProgramCache]: Analyzing trace with hash 502547855, now seen corresponding path program 7 times [2020-10-27 04:07:14,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:14,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552042670] [2020-10-27 04:07:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:14,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:14,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:16,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:16,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:07:16,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:16,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2329 [2020-10-27 04:07:16,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:16,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 04:07:16,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:16,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 04:07:16,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:16,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:16,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:16,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:16,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:16,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:16,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:07:16,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:16,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:16,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:16,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:16,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:16,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:16,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:16,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:16,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:07:16,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:16,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-27 04:07:16,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 04:07:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 04:07:16,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:16,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:16,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:16,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:16,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:07:16,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:16,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-27 04:07:16,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:16,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:07:16,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:16,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:07:16,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:16,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:16,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:16,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:16,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:16,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:16,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-27 04:07:16,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:07:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:07:16,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:16,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:16,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:17,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:17,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:17,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:17,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 04:07:17,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:17,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:07:17,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:17,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:07:17,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:17,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:17,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:17,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:17,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:17,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:17,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 04:07:17,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:17,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:17,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:17,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:17,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:17,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:17,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:17,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:17,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:17,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 04:07:17,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:17,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:17,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:17,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:17,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:17,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:17,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:17,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:17,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:17,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:17,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:07:17,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:17,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:17,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:17,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:17,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:17,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:17,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:17,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:17,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:17,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:17,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:07:17,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:17,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:17,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:17,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:17,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:17,301 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 84 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-27 04:07:17,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552042670] [2020-10-27 04:07:17,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:17,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 04:07:17,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221799419] [2020-10-27 04:07:17,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 04:07:17,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:17,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 04:07:17,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:07:17,304 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 14 states. [2020-10-27 04:07:17,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:17,836 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-27 04:07:17,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 04:07:17,837 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2020-10-27 04:07:17,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:17,839 INFO L225 Difference]: With dead ends: 46 [2020-10-27 04:07:17,841 INFO L226 Difference]: Without dead ends: 41 [2020-10-27 04:07:17,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2020-10-27 04:07:17,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-27 04:07:17,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-27 04:07:17,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 04:07:17,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-27 04:07:17,858 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 57 [2020-10-27 04:07:17,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:17,860 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-27 04:07:17,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 04:07:17,860 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-27 04:07:17,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-27 04:07:17,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:17,862 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:17,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:07:17,862 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:17,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:17,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1459767611, now seen corresponding path program 8 times [2020-10-27 04:07:17,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:17,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071206623] [2020-10-27 04:07:17,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:17,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:20,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:20,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 04:07:20,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:20,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2773 [2020-10-27 04:07:20,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 04:07:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 04:07:20,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:20,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:20,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:20,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:20,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:20,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:20,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:07:20,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:20,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:20,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:20,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:20,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:20,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:07:20,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:20,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-27 04:07:20,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:20,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 04:07:20,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:20,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 04:07:20,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:20,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:20,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:21,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:21,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:07:21,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:21,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-27 04:07:21,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:07:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:07:21,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:21,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:21,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:21,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:21,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:07:21,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:21,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-27 04:07:21,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:21,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:07:21,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:21,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:07:21,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:21,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:21,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:21,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:21,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:21,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 04:07:21,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:07:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:07:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:21,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:21,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:21,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:21,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:21,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:21,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 04:07:21,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:21,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:07:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:07:21,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:21,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:21,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:21,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:21,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:21,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:21,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 04:07:21,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:21,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:21,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:21,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:21,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:21,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:21,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:21,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 04:07:21,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:21,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:21,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:21,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:21,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:21,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:21,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:21,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:21,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:07:21,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:21,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:21,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:21,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:21,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:21,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:21,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:21,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:21,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:21,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:21,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:07:21,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:21,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:21,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:21,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:21,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 12 proven. 123 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-27 04:07:21,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071206623] [2020-10-27 04:07:21,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:21,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 04:07:21,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249520083] [2020-10-27 04:07:21,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:07:21,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:21,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:07:21,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:07:21,713 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 15 states. [2020-10-27 04:07:22,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:22,323 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-27 04:07:22,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 04:07:22,323 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 63 [2020-10-27 04:07:22,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:22,325 INFO L225 Difference]: With dead ends: 49 [2020-10-27 04:07:22,325 INFO L226 Difference]: Without dead ends: 44 [2020-10-27 04:07:22,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2020-10-27 04:07:22,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-27 04:07:22,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-27 04:07:22,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-27 04:07:22,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-10-27 04:07:22,337 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 63 [2020-10-27 04:07:22,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:22,337 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-10-27 04:07:22,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:07:22,338 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-10-27 04:07:22,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-27 04:07:22,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:22,343 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:22,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:07:22,343 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:22,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:22,344 INFO L82 PathProgramCache]: Analyzing trace with hash 273998991, now seen corresponding path program 9 times [2020-10-27 04:07:22,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:22,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198690559] [2020-10-27 04:07:22,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:22,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:22,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:25,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:25,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 04:07:25,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:07:25,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3302 [2020-10-27 04:07:25,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 04:07:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:07:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 04:07:25,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:25,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:07:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:25,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:25,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:25,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:07:25,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:25,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:25,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:07:25,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:25,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:07:25,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:25,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:07:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:25,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:25,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:25,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:07:25,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:25,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-27 04:07:25,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 04:07:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 04:07:25,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:25,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:25,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:26,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:26,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 04:07:26,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:26,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-27 04:07:26,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 04:07:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:07:26,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:26,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:26,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:26,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:26,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 04:07:26,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:26,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-27 04:07:26,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:26,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:07:26,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:26,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:07:26,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:26,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:26,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:26,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:26,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 04:07:26,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:26,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-27 04:07:26,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:07:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:07:26,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:26,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:26,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:26,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:26,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 04:07:26,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:26,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-27 04:07:26,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:07:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:07:26,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:26,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:26,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:26,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:26,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:07:26,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:26,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 04:07:26,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:26,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 04:07:26,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:26,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 04:07:26,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:26,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:26,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:26,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:26,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 04:07:26,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:26,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 04:07:26,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:26,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:26,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:26,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 04:07:26,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:26,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:26,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:26,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:26,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:07:26,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:26,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 04:07:26,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:07:26,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:26,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:26,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:26,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:26,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:07:26,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:26,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:07:26,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:07:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:07:26,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:26,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 04:07:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:26,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:26,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:26,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:26,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:26,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:07:26,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:26,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:26,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:26,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:26,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:26,869 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 26 proven. 145 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-27 04:07:26,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198690559] [2020-10-27 04:07:26,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:26,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 04:07:26,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248208791] [2020-10-27 04:07:26,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 04:07:26,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:26,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 04:07:26,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-10-27 04:07:26,872 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 16 states. [2020-10-27 04:07:27,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:27,553 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-27 04:07:27,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 04:07:27,558 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 69 [2020-10-27 04:07:27,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:27,559 INFO L225 Difference]: With dead ends: 52 [2020-10-27 04:07:27,559 INFO L226 Difference]: Without dead ends: 47 [2020-10-27 04:07:27,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2020-10-27 04:07:27,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-27 04:07:27,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-27 04:07:27,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-27 04:07:27,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-27 04:07:27,568 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 69 [2020-10-27 04:07:27,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:27,568 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-27 04:07:27,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 04:07:27,568 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-27 04:07:27,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 04:07:27,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:27,570 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:27,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 04:07:27,570 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:27,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:27,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1458107067, now seen corresponding path program 10 times [2020-10-27 04:07:27,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:27,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637311682] [2020-10-27 04:07:27,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 04:07:27,585 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 04:07:27,585 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 04:07:27,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 04:07:27,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:07:27 BoogieIcfgContainer [2020-10-27 04:07:27,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 04:07:27,610 INFO L168 Benchmark]: Toolchain (without parser) took 27604.96 ms. Allocated memory was 151.0 MB in the beginning and 335.5 MB in the end (delta: 184.5 MB). Free memory was 126.1 MB in the beginning and 272.1 MB in the end (delta: -146.0 MB). Peak memory consumption was 39.5 MB. Max. memory is 8.0 GB. [2020-10-27 04:07:27,611 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 04:07:27,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.07 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 116.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-10-27 04:07:27,612 INFO L168 Benchmark]: Boogie Preprocessor took 34.26 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 115.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 04:07:27,612 INFO L168 Benchmark]: RCFGBuilder took 353.51 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 102.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-27 04:07:27,613 INFO L168 Benchmark]: TraceAbstraction took 26974.01 ms. Allocated memory was 151.0 MB in the beginning and 335.5 MB in the end (delta: 184.5 MB). Free memory was 102.2 MB in the beginning and 272.1 MB in the end (delta: -169.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 8.0 GB. [2020-10-27 04:07:27,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 231.07 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 116.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.26 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 115.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 353.51 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 102.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26974.01 ms. Allocated memory was 151.0 MB in the beginning and 335.5 MB in the end (delta: 184.5 MB). Free memory was 102.2 MB in the beginning and 272.1 MB in the end (delta: -169.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int input = 10; [L13] CALL, EXPR id(input) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND TRUE x==0 [L7] return 0; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L13] RET, EXPR id(input) [L13] int result = id(input); [L14] COND TRUE result == 10 [L15] CALL reach_error() [L4] __assert_fail("0", "id_i10_o10-1.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.8s, OverallIterations: 11, TraceHistogramMax: 11, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 144 SDtfs, 366 SDslu, 277 SDs, 0 SdLazy, 668 SolverSat, 221 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 495 NumberOfCodeBlocks, 495 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 410 ConstructedInterpolants, 0 QuantifiedInterpolants, 59284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 375/900 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 incorrect! Received shutdown request...