/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:13:25,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:13:25,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:13:25,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:13:25,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:13:25,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:13:25,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:13:25,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:13:25,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:13:25,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:13:25,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:13:25,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:13:25,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:13:25,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:13:25,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:13:25,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:13:25,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:13:25,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:13:25,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:13:25,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:13:25,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:13:25,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:13:25,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:13:25,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:13:25,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:13:25,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:13:25,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:13:25,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:13:25,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:13:25,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:13:25,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:13:25,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:13:25,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:13:25,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:13:25,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:13:25,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:13:25,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:13:25,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:13:25,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:13:25,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:13:25,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:13:25,154 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 [2020-09-25 03:13:25,206 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:13:25,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:13:25,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:13:25,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:13:25,208 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:13:25,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:13:25,209 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:13:25,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:13:25,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:13:25,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:13:25,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:13:25,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:13:25,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:13:25,210 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:13:25,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:13:25,210 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:13:25,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:13:25,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:13:25,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:13:25,211 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:13:25,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:13:25,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:13:25,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:13:25,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:13:25,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:13:25,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:13:25,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:13:25,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:13:25,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:13:25,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=true; [2020-09-25 03:13:25,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:13:25,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:13:25,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:13:25,717 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:13:25,717 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:13:25,718 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_5.c [2020-09-25 03:13:25,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7b8e5ccf/451913c3c1a94669ab85069ca85c84bb/FLAGa0efaea79 [2020-09-25 03:13:26,372 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:13:26,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_5.c [2020-09-25 03:13:26,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7b8e5ccf/451913c3c1a94669ab85069ca85c84bb/FLAGa0efaea79 [2020-09-25 03:13:26,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7b8e5ccf/451913c3c1a94669ab85069ca85c84bb [2020-09-25 03:13:26,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:13:26,757 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:13:26,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:13:26,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:13:26,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:13:26,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:26" (1/1) ... [2020-09-25 03:13:26,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f78b0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:26, skipping insertion in model container [2020-09-25 03:13:26,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:26" (1/1) ... [2020-09-25 03:13:26,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:13:26,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:13:27,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:13:27,031 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:13:27,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:13:27,074 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:13:27,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:27 WrapperNode [2020-09-25 03:13:27,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:13:27,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:13:27,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:13:27,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:13:27,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:27" (1/1) ... [2020-09-25 03:13:27,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:27" (1/1) ... [2020-09-25 03:13:27,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:27" (1/1) ... [2020-09-25 03:13:27,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:27" (1/1) ... [2020-09-25 03:13:27,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:27" (1/1) ... [2020-09-25 03:13:27,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:27" (1/1) ... [2020-09-25 03:13:27,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:27" (1/1) ... [2020-09-25 03:13:27,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:13:27,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:13:27,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:13:27,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:13:27,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:27" (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 [2020-09-25 03:13:27,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:13:27,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:13:27,311 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:13:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:13:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:13:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:13:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:13:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:13:27,672 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:13:27,673 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 03:13:27,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:27 BoogieIcfgContainer [2020-09-25 03:13:27,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:13:27,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:13:27,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:13:27,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:13:27,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:13:26" (1/3) ... [2020-09-25 03:13:27,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba0e5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:27, skipping insertion in model container [2020-09-25 03:13:27,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:27" (2/3) ... [2020-09-25 03:13:27,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba0e5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:27, skipping insertion in model container [2020-09-25 03:13:27,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:27" (3/3) ... [2020-09-25 03:13:27,689 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_5.c [2020-09-25 03:13:27,699 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:13:27,710 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:13:27,733 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:13:27,765 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:13:27,765 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:13:27,765 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:13:27,766 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:13:27,766 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:13:27,766 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:13:27,766 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:13:27,766 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:13:27,793 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-09-25 03:13:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 03:13:27,801 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:27,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:27,803 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:27,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:27,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1222569836, now seen corresponding path program 1 times [2020-09-25 03:13:27,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:27,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297086649] [2020-09-25 03:13:27,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:28,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 03:13:28,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:28,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 03:13:28,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:28,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 03:13:28,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:13:28,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:13:28,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:28,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:28,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:28,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:13:28,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:28,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:28,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297086649] [2020-09-25 03:13:28,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:28,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:28,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88129600] [2020-09-25 03:13:28,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:28,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:28,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:28,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:28,277 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2020-09-25 03:13:28,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:28,353 INFO L93 Difference]: Finished difference Result 147 states and 198 transitions. [2020-09-25 03:13:28,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:28,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-09-25 03:13:28,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:28,373 INFO L225 Difference]: With dead ends: 147 [2020-09-25 03:13:28,373 INFO L226 Difference]: Without dead ends: 96 [2020-09-25 03:13:28,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:28,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-25 03:13:28,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2020-09-25 03:13:28,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 03:13:28,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 120 transitions. [2020-09-25 03:13:28,448 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 120 transitions. Word has length 43 [2020-09-25 03:13:28,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:28,449 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 120 transitions. [2020-09-25 03:13:28,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:28,449 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 120 transitions. [2020-09-25 03:13:28,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 03:13:28,451 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:28,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:28,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:13:28,453 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:28,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:28,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1252462105, now seen corresponding path program 1 times [2020-09-25 03:13:28,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:28,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171636516] [2020-09-25 03:13:28,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:28,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:13:28,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:28,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 03:13:28,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 03:13:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:13:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:28,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:28,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:28,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:28,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:13:28,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:28,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:28,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:28,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:28,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:28,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171636516] [2020-09-25 03:13:28,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:28,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:28,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220098757] [2020-09-25 03:13:28,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:28,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:28,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:28,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:28,635 INFO L87 Difference]: Start difference. First operand 94 states and 120 transitions. Second operand 3 states. [2020-09-25 03:13:28,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:28,679 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions. [2020-09-25 03:13:28,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:28,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-09-25 03:13:28,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:28,682 INFO L225 Difference]: With dead ends: 116 [2020-09-25 03:13:28,682 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 03:13:28,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:28,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 03:13:28,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2020-09-25 03:13:28,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 03:13:28,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions. [2020-09-25 03:13:28,696 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 119 transitions. Word has length 44 [2020-09-25 03:13:28,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:28,697 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 119 transitions. [2020-09-25 03:13:28,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:28,697 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions. [2020-09-25 03:13:28,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 03:13:28,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:28,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:28,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:13:28,700 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:28,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:28,700 INFO L82 PathProgramCache]: Analyzing trace with hash 755286414, now seen corresponding path program 1 times [2020-09-25 03:13:28,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:28,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129780019] [2020-09-25 03:13:28,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:28,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:13:28,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:28,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 03:13:28,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:28,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 03:13:28,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:13:28,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:28,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:28,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:28,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:28,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:13:28,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:28,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:28,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:28,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:28,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129780019] [2020-09-25 03:13:28,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:28,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:28,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701832278] [2020-09-25 03:13:28,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:28,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:28,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:28,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:28,892 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. Second operand 3 states. [2020-09-25 03:13:28,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:28,942 INFO L93 Difference]: Finished difference Result 226 states and 299 transitions. [2020-09-25 03:13:28,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:28,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-09-25 03:13:28,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:28,945 INFO L225 Difference]: With dead ends: 226 [2020-09-25 03:13:28,945 INFO L226 Difference]: Without dead ends: 157 [2020-09-25 03:13:28,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:28,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-09-25 03:13:28,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2020-09-25 03:13:28,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 03:13:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 200 transitions. [2020-09-25 03:13:28,964 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 200 transitions. Word has length 44 [2020-09-25 03:13:28,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:28,965 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 200 transitions. [2020-09-25 03:13:28,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:28,965 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 200 transitions. [2020-09-25 03:13:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 03:13:28,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:28,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:28,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:13:28,968 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:28,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:28,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1863120818, now seen corresponding path program 1 times [2020-09-25 03:13:28,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:28,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655293554] [2020-09-25 03:13:28,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:28,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 03:13:29,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 03:13:29,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 03:13:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:13:29,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 03:13:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:29,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:13:29,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:29,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:29,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655293554] [2020-09-25 03:13:29,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:29,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:29,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408700436] [2020-09-25 03:13:29,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:29,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:29,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:29,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,094 INFO L87 Difference]: Start difference. First operand 155 states and 200 transitions. Second operand 3 states. [2020-09-25 03:13:29,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:29,129 INFO L93 Difference]: Finished difference Result 191 states and 246 transitions. [2020-09-25 03:13:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:29,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-09-25 03:13:29,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:29,134 INFO L225 Difference]: With dead ends: 191 [2020-09-25 03:13:29,134 INFO L226 Difference]: Without dead ends: 189 [2020-09-25 03:13:29,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-25 03:13:29,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 155. [2020-09-25 03:13:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 03:13:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 198 transitions. [2020-09-25 03:13:29,164 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 198 transitions. Word has length 45 [2020-09-25 03:13:29,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:29,165 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 198 transitions. [2020-09-25 03:13:29,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:29,165 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 198 transitions. [2020-09-25 03:13:29,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 03:13:29,169 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:29,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:29,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:13:29,170 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:29,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:29,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1939288392, now seen corresponding path program 1 times [2020-09-25 03:13:29,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:29,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775030484] [2020-09-25 03:13:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 03:13:29,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 03:13:29,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:29,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 03:13:29,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:13:29,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:29,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:29,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:29,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:29,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:29,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:29,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775030484] [2020-09-25 03:13:29,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:29,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:29,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675515662] [2020-09-25 03:13:29,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:29,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:29,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:29,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,278 INFO L87 Difference]: Start difference. First operand 155 states and 198 transitions. Second operand 3 states. [2020-09-25 03:13:29,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:29,298 INFO L93 Difference]: Finished difference Result 403 states and 528 transitions. [2020-09-25 03:13:29,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:29,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-09-25 03:13:29,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:29,301 INFO L225 Difference]: With dead ends: 403 [2020-09-25 03:13:29,301 INFO L226 Difference]: Without dead ends: 273 [2020-09-25 03:13:29,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-25 03:13:29,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271. [2020-09-25 03:13:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-25 03:13:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 346 transitions. [2020-09-25 03:13:29,318 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 346 transitions. Word has length 45 [2020-09-25 03:13:29,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:29,319 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 346 transitions. [2020-09-25 03:13:29,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:29,319 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 346 transitions. [2020-09-25 03:13:29,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 03:13:29,321 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:29,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:29,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:13:29,322 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:29,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:29,323 INFO L82 PathProgramCache]: Analyzing trace with hash -11355582, now seen corresponding path program 1 times [2020-09-25 03:13:29,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:29,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610228207] [2020-09-25 03:13:29,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:13:29,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 03:13:29,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:29,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 03:13:29,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:13:29,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:29,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:29,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:13:29,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:29,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:29,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:29,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610228207] [2020-09-25 03:13:29,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:29,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:29,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065384166] [2020-09-25 03:13:29,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:29,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:29,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:29,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,422 INFO L87 Difference]: Start difference. First operand 271 states and 346 transitions. Second operand 3 states. [2020-09-25 03:13:29,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:29,463 INFO L93 Difference]: Finished difference Result 739 states and 956 transitions. [2020-09-25 03:13:29,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:29,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-25 03:13:29,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:29,468 INFO L225 Difference]: With dead ends: 739 [2020-09-25 03:13:29,468 INFO L226 Difference]: Without dead ends: 493 [2020-09-25 03:13:29,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-09-25 03:13:29,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 491. [2020-09-25 03:13:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-09-25 03:13:29,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 618 transitions. [2020-09-25 03:13:29,514 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 618 transitions. Word has length 46 [2020-09-25 03:13:29,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:29,515 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 618 transitions. [2020-09-25 03:13:29,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:29,515 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 618 transitions. [2020-09-25 03:13:29,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 03:13:29,525 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:29,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:29,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:13:29,526 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:29,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:29,526 INFO L82 PathProgramCache]: Analyzing trace with hash 338056749, now seen corresponding path program 1 times [2020-09-25 03:13:29,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:29,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351157467] [2020-09-25 03:13:29,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:13:29,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 03:13:29,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:29,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 03:13:29,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:13:29,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:29,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:29,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:29,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:29,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:29,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:29,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:29,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:29,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351157467] [2020-09-25 03:13:29,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:29,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:29,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375011559] [2020-09-25 03:13:29,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:29,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:29,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:29,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,640 INFO L87 Difference]: Start difference. First operand 491 states and 618 transitions. Second operand 3 states. [2020-09-25 03:13:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:29,665 INFO L93 Difference]: Finished difference Result 599 states and 748 transitions. [2020-09-25 03:13:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:29,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-25 03:13:29,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:29,669 INFO L225 Difference]: With dead ends: 599 [2020-09-25 03:13:29,669 INFO L226 Difference]: Without dead ends: 597 [2020-09-25 03:13:29,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-09-25 03:13:29,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 491. [2020-09-25 03:13:29,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-09-25 03:13:29,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 610 transitions. [2020-09-25 03:13:29,689 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 610 transitions. Word has length 46 [2020-09-25 03:13:29,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:29,690 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 610 transitions. [2020-09-25 03:13:29,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:29,690 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 610 transitions. [2020-09-25 03:13:29,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-25 03:13:29,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:29,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:29,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:13:29,692 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:29,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:29,693 INFO L82 PathProgramCache]: Analyzing trace with hash -144915038, now seen corresponding path program 1 times [2020-09-25 03:13:29,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:29,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082251904] [2020-09-25 03:13:29,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:13:29,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 03:13:29,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 03:13:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:13:29,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:29,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:29,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:29,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:29,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:29,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082251904] [2020-09-25 03:13:29,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:29,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:29,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452546750] [2020-09-25 03:13:29,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:29,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:29,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:29,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,772 INFO L87 Difference]: Start difference. First operand 491 states and 610 transitions. Second operand 3 states. [2020-09-25 03:13:29,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:29,792 INFO L93 Difference]: Finished difference Result 591 states and 724 transitions. [2020-09-25 03:13:29,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:29,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-09-25 03:13:29,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:29,796 INFO L225 Difference]: With dead ends: 591 [2020-09-25 03:13:29,796 INFO L226 Difference]: Without dead ends: 589 [2020-09-25 03:13:29,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-09-25 03:13:29,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 491. [2020-09-25 03:13:29,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-09-25 03:13:29,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 602 transitions. [2020-09-25 03:13:29,814 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 602 transitions. Word has length 47 [2020-09-25 03:13:29,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:29,815 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 602 transitions. [2020-09-25 03:13:29,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:29,815 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 602 transitions. [2020-09-25 03:13:29,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-25 03:13:29,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:29,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:29,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:13:29,817 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:29,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:29,817 INFO L82 PathProgramCache]: Analyzing trace with hash -351776260, now seen corresponding path program 1 times [2020-09-25 03:13:29,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:29,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963609576] [2020-09-25 03:13:29,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:13:29,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 03:13:29,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:29,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 03:13:29,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:13:29,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:29,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:29,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:29,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:29,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:29,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:29,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:29,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:29,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963609576] [2020-09-25 03:13:29,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:29,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:29,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948735002] [2020-09-25 03:13:29,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:29,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:29,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:29,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,903 INFO L87 Difference]: Start difference. First operand 491 states and 602 transitions. Second operand 3 states. [2020-09-25 03:13:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:29,937 INFO L93 Difference]: Finished difference Result 1373 states and 1691 transitions. [2020-09-25 03:13:29,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:29,938 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-09-25 03:13:29,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:29,941 INFO L225 Difference]: With dead ends: 1373 [2020-09-25 03:13:29,941 INFO L226 Difference]: Without dead ends: 491 [2020-09-25 03:13:29,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-09-25 03:13:29,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-09-25 03:13:29,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-09-25 03:13:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 570 transitions. [2020-09-25 03:13:29,961 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 570 transitions. Word has length 47 [2020-09-25 03:13:29,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:29,961 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 570 transitions. [2020-09-25 03:13:29,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:29,962 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 570 transitions. [2020-09-25 03:13:29,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 03:13:29,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:29,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:29,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:13:29,963 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:29,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:29,964 INFO L82 PathProgramCache]: Analyzing trace with hash 2062829121, now seen corresponding path program 1 times [2020-09-25 03:13:29,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:29,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153849228] [2020-09-25 03:13:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:30,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:30,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:13:30,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:30,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 03:13:30,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:30,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:30,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 03:13:30,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:13:30,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:30,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:30,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:30,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:30,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:30,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:30,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:30,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:30,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:30,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:30,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:30,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:30,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:30,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153849228] [2020-09-25 03:13:30,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:30,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:30,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262308739] [2020-09-25 03:13:30,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:30,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:30,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:30,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:30,057 INFO L87 Difference]: Start difference. First operand 491 states and 570 transitions. Second operand 3 states. [2020-09-25 03:13:30,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:30,070 INFO L93 Difference]: Finished difference Result 491 states and 570 transitions. [2020-09-25 03:13:30,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:30,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-09-25 03:13:30,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:30,071 INFO L225 Difference]: With dead ends: 491 [2020-09-25 03:13:30,071 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 03:13:30,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:30,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 03:13:30,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 03:13:30,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 03:13:30,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 03:13:30,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-09-25 03:13:30,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:30,074 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 03:13:30,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:30,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 03:13:30,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 03:13:30,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 03:13:30,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 03:13:30,106 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 03:13:30,106 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:13:30,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:13:30,107 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 03:13:30,107 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 03:13:30,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 03:13:30,107 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 93) no Hoare annotation was computed. [2020-09-25 03:13:30,107 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-25 03:13:30,107 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 03:13:30,108 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-25 03:13:30,108 INFO L268 CegarLoopResult]: For program point L53-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 03:13:30,108 INFO L268 CegarLoopResult]: For program point L78-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 03:13:30,108 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 03:13:30,108 INFO L268 CegarLoopResult]: For program point L45-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 03:13:30,108 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 03:13:30,108 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 03:13:30,109 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-25 03:13:30,109 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 03:13:30,109 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 03:13:30,109 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-25 03:13:30,109 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-25 03:13:30,109 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 03:13:30,109 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 03:13:30,110 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 93) no Hoare annotation was computed. [2020-09-25 03:13:30,110 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2020-09-25 03:13:30,110 INFO L268 CegarLoopResult]: For program point L63-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 03:13:30,110 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 93) the Hoare annotation is: true [2020-09-25 03:13:30,110 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 03:13:30,110 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-25 03:13:30,111 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 03:13:30,111 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 03:13:30,111 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-25 03:13:30,111 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 03:13:30,111 INFO L271 CegarLoopResult]: At program point L89(lines 5 93) the Hoare annotation is: true [2020-09-25 03:13:30,111 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 03:13:30,111 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 03:13:30,112 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 03:13:30,112 INFO L268 CegarLoopResult]: For program point L73-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 03:13:30,112 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 03:13:30,112 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-25 03:13:30,112 INFO L268 CegarLoopResult]: For program point L57-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 03:13:30,112 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 03:13:30,112 INFO L268 CegarLoopResult]: For program point L49-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 03:13:30,112 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-25 03:13:30,112 INFO L268 CegarLoopResult]: For program point L41(lines 41 43) no Hoare annotation was computed. [2020-09-25 03:13:30,113 INFO L268 CegarLoopResult]: For program point L41-2(lines 24 88) no Hoare annotation was computed. [2020-09-25 03:13:30,113 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 03:13:30,113 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-25 03:13:30,113 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 03:13:30,113 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-25 03:13:30,113 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-09-25 03:13:30,113 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 03:13:30,113 INFO L271 CegarLoopResult]: At program point L83-1(lines 24 88) the Hoare annotation is: true [2020-09-25 03:13:30,114 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-09-25 03:13:30,114 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 03:13:30,114 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 03:13:30,114 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 03:13:30,114 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 03:13:30,114 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-25 03:13:30,114 INFO L268 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-09-25 03:13:30,114 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-09-25 03:13:30,115 INFO L264 CegarLoopResult]: At program point L84-1(lines 5 93) the Hoare annotation is: false [2020-09-25 03:13:30,115 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 03:13:30,115 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 03:13:30,115 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 03:13:30,115 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 03:13:30,115 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-25 03:13:30,115 INFO L268 CegarLoopResult]: For program point L68-1(lines 24 88) no Hoare annotation was computed. [2020-09-25 03:13:30,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:13:30 BoogieIcfgContainer [2020-09-25 03:13:30,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:13:30,133 INFO L168 Benchmark]: Toolchain (without parser) took 3379.32 ms. Allocated memory was 145.8 MB in the beginning and 248.5 MB in the end (delta: 102.8 MB). Free memory was 101.7 MB in the beginning and 206.7 MB in the end (delta: -104.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 03:13:30,134 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 03:13:30,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.33 ms. Allocated memory is still 145.8 MB. Free memory was 101.1 MB in the beginning and 91.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:30,135 INFO L168 Benchmark]: Boogie Preprocessor took 145.42 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 91.2 MB in the beginning and 179.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:30,136 INFO L168 Benchmark]: RCFGBuilder took 456.91 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 161.9 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:30,137 INFO L168 Benchmark]: TraceAbstraction took 2449.50 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 161.9 MB in the beginning and 206.7 MB in the end (delta: -44.7 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:30,141 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 317.33 ms. Allocated memory is still 145.8 MB. Free memory was 101.1 MB in the beginning and 91.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.42 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 91.2 MB in the beginning and 179.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 456.91 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 161.9 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2449.50 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 161.9 MB in the beginning and 206.7 MB in the end (delta: -44.7 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 956 SDtfs, 332 SDslu, 668 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=491occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 266 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 41 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 455 NumberOfCodeBlocks, 455 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 445 ConstructedInterpolants, 0 QuantifiedInterpolants, 24725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...