/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i5_o5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:48:20,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:48:20,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:48:20,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:48:20,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:48:20,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:48:20,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:48:20,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:48:20,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:48:20,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:48:20,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:48:20,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:48:20,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:48:20,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:48:20,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:48:20,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:48:20,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:48:20,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:48:20,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:48:20,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:48:20,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:48:20,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:48:20,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:48:20,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:48:20,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:48:20,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:48:20,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:48:20,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:48:20,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:48:20,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:48:20,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:48:20,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:48:20,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:48:20,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:48:20,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:48:20,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:48:20,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:48:20,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:48:20,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:48:20,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:48:20,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:48:20,096 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 [2020-09-24 23:48:20,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:48:20,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:48:20,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:48:20,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:48:20,125 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:48:20,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:48:20,128 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:48:20,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:48:20,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:48:20,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:48:20,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:48:20,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:48:20,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:48:20,129 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:48:20,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:48:20,130 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:48:20,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:48:20,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:48:20,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:48:20,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:48:20,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:48:20,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:48:20,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:48:20,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:48:20,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:48:20,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:48:20,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:48:20,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:48:20,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:48:20,134 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:48:20,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:48:20,625 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:48:20,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:48:20,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:48:20,632 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:48:20,633 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i5_o5-2.c [2020-09-24 23:48:20,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d0413311/a2abc60937964fc2adf167ffc2effea1/FLAGd819ac7bf [2020-09-24 23:48:21,266 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:48:21,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i5_o5-2.c [2020-09-24 23:48:21,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d0413311/a2abc60937964fc2adf167ffc2effea1/FLAGd819ac7bf [2020-09-24 23:48:21,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d0413311/a2abc60937964fc2adf167ffc2effea1 [2020-09-24 23:48:21,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:48:21,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:48:21,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:48:21,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:48:21,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:48:21,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:48:21" (1/1) ... [2020-09-24 23:48:21,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@176ea22d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:21, skipping insertion in model container [2020-09-24 23:48:21,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:48:21" (1/1) ... [2020-09-24 23:48:21,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:48:21,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:48:21,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:48:21,905 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:48:21,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:48:21,939 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:48:21,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:21 WrapperNode [2020-09-24 23:48:21,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:48:21,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:48:21,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:48:21,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:48:21,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:21" (1/1) ... [2020-09-24 23:48:21,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:21" (1/1) ... [2020-09-24 23:48:21,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:21" (1/1) ... [2020-09-24 23:48:21,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:21" (1/1) ... [2020-09-24 23:48:21,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:21" (1/1) ... [2020-09-24 23:48:21,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:21" (1/1) ... [2020-09-24 23:48:21,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:21" (1/1) ... [2020-09-24 23:48:21,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:48:21,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:48:21,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:48:21,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:48:21,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:21" (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 [2020-09-24 23:48:22,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:48:22,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:48:22,121 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 23:48:22,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:48:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:48:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:48:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 23:48:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:48:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:48:22,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:48:22,318 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:48:22,318 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:48:22,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:48:22 BoogieIcfgContainer [2020-09-24 23:48:22,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:48:22,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:48:22,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:48:22,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:48:22,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:48:21" (1/3) ... [2020-09-24 23:48:22,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dad5509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:48:22, skipping insertion in model container [2020-09-24 23:48:22,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:21" (2/3) ... [2020-09-24 23:48:22,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dad5509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:48:22, skipping insertion in model container [2020-09-24 23:48:22,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:48:22" (3/3) ... [2020-09-24 23:48:22,335 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i5_o5-2.c [2020-09-24 23:48:22,348 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:48:22,359 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:48:22,391 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:48:22,465 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:48:22,465 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:48:22,465 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:48:22,469 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:48:22,469 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:48:22,470 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:48:22,470 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:48:22,470 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:48:22,508 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-24 23:48:22,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 23:48:22,516 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:22,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:22,518 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:22,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:22,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-24 23:48:22,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:22,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96566446] [2020-09-24 23:48:22,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:22,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:22,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:22,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 23:48:22,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 23:48:22,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:22,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:48:22,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:48:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:22,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:48:22,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:22,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:22,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:22,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:22,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:22,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:48:22,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:22,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:22,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:22,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:22,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:22,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:48:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:22,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:22,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:22,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:22,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:22,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 23:48:22,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:22,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:48:22,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:48:22,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:48:22,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:22,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:48:22,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96566446] [2020-09-24 23:48:22,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:48:22,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:48:22,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856092135] [2020-09-24 23:48:22,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:48:22,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:22,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:48:22,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:48:22,879 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-24 23:48:22,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:22,991 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-24 23:48:22,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:48:22,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 23:48:22,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:23,019 INFO L225 Difference]: With dead ends: 37 [2020-09-24 23:48:23,019 INFO L226 Difference]: Without dead ends: 23 [2020-09-24 23:48:23,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:48:23,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-24 23:48:23,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-24 23:48:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-24 23:48:23,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-24 23:48:23,117 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-24 23:48:23,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:23,118 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-24 23:48:23,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:48:23,119 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-24 23:48:23,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-24 23:48:23,124 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:23,125 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:23,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:48:23,125 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:23,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:23,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-24 23:48:23,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:23,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470127788] [2020-09-24 23:48:23,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:23,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:23,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:23,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-24 23:48:23,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:23,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 23:48:23,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:23,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:48:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:48:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 23:48:23,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:48:23,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:23,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:23,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:23,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:23,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:23,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:48:23,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:23,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:23,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:23,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:23,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:23,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:48:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:23,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:23,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:23,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:48:23,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:23,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 23:48:23,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:23,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:48:23,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:48:23,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 23:48:23,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:23,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:23,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:23,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:23,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:23,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:23,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:48:23,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:23,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:23,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:23,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:23,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 23:48:23,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470127788] [2020-09-24 23:48:23,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:23,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:48:23,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321350741] [2020-09-24 23:48:23,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:48:23,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:23,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:48:23,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:48:23,685 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-24 23:48:23,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:23,759 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-24 23:48:23,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:48:23,760 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-24 23:48:23,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:23,762 INFO L225 Difference]: With dead ends: 34 [2020-09-24 23:48:23,762 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 23:48:23,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:48:23,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 23:48:23,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 23:48:23,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:48:23,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-24 23:48:23,771 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-24 23:48:23,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:23,772 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-24 23:48:23,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:48:23,772 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-24 23:48:23,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-24 23:48:23,774 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:23,774 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:23,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:48:23,775 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:23,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:23,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-24 23:48:23,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:23,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562625976] [2020-09-24 23:48:23,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:23,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:23,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:23,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:48:23,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:23,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 23:48:23,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:23,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:48:23,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:48:23,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 23:48:23,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-24 23:48:24,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:24,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:24,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:24,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:24,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:24,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:48:24,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:24,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:24,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:24,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:24,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:24,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:48:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:24,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:24,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:24,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 23:48:24,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:24,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 23:48:24,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:48:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:48:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 23:48:24,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:24,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:24,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:24,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:24,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:48:24,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:24,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 23:48:24,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:48:24,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:24,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:24,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:24,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:24,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:24,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:24,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:48:24,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:48:24,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562625976] [2020-09-24 23:48:24,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:24,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 23:48:24,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905865369] [2020-09-24 23:48:24,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:48:24,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:24,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:48:24,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:48:24,348 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-24 23:48:24,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:24,418 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-24 23:48:24,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:48:24,418 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-24 23:48:24,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:24,420 INFO L225 Difference]: With dead ends: 39 [2020-09-24 23:48:24,420 INFO L226 Difference]: Without dead ends: 33 [2020-09-24 23:48:24,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:48:24,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-24 23:48:24,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-24 23:48:24,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-24 23:48:24,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-24 23:48:24,429 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-24 23:48:24,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:24,429 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-24 23:48:24,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:48:24,429 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-24 23:48:24,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 23:48:24,431 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:24,431 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:24,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:48:24,432 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:24,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:24,432 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-24 23:48:24,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:24,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229754421] [2020-09-24 23:48:24,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:24,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:24,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:24,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 23:48:24,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:24,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-24 23:48:24,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:48:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:48:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:48:24,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:24,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:24,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:24,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:24,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:24,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:24,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:48:24,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:24,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:24,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:24,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:48:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:24,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:24,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:24,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 23:48:24,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:24,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 23:48:24,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:48:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:48:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 23:48:24,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:24,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:24,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:24,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:24,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 23:48:24,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:24,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 23:48:24,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:24,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:24,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:24,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:48:24,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:24,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:24,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:25,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:25,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:48:25,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:25,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 23:48:25,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:48:25,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:25,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:25,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:25,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:25,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:25,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:25,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:48:25,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:25,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:25,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:25,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:25,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 23:48:25,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229754421] [2020-09-24 23:48:25,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:25,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 23:48:25,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295337822] [2020-09-24 23:48:25,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:48:25,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:25,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:48:25,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:48:25,088 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 10 states. [2020-09-24 23:48:25,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:25,178 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-24 23:48:25,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:48:25,179 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2020-09-24 23:48:25,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:25,181 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:48:25,181 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 23:48:25,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:48:25,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 23:48:25,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 23:48:25,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 23:48:25,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-24 23:48:25,190 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-24 23:48:25,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:25,191 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-24 23:48:25,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:48:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-24 23:48:25,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-24 23:48:25,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:25,193 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:25,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:48:25,194 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:25,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:25,195 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-24 23:48:25,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:25,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969505591] [2020-09-24 23:48:25,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:25,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:25,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:25,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:48:25,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:25,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 23:48:25,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:48:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:48:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 23:48:25,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:25,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:25,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:25,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:25,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:25,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:25,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:25,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:25,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:25,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:25,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:25,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:25,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:48:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:25,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:25,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:25,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:48:25,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 23:48:25,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:48:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:48:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 23:48:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:25,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:25,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:25,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:25,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 23:48:25,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:25,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 23:48:25,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:25,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:25,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 23:48:25,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:25,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:25,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:25,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:25,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 23:48:25,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:25,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 23:48:25,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:48:25,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:25,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:25,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:26,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:26,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:48:26,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:26,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 23:48:26,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:26,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:26,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:48:26,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:26,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:26,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:26,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:26,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:26,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:26,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:48:26,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:26,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:26,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:26,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:26,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 39 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-24 23:48:26,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969505591] [2020-09-24 23:48:26,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:26,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 23:48:26,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706810619] [2020-09-24 23:48:26,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:48:26,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:26,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:48:26,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:48:26,081 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-09-24 23:48:26,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:26,174 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-24 23:48:26,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 23:48:26,175 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-24 23:48:26,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:26,177 INFO L225 Difference]: With dead ends: 49 [2020-09-24 23:48:26,177 INFO L226 Difference]: Without dead ends: 43 [2020-09-24 23:48:26,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:48:26,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-24 23:48:26,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-24 23:48:26,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-24 23:48:26,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-24 23:48:26,185 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-24 23:48:26,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:26,186 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-24 23:48:26,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:48:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-24 23:48:26,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-24 23:48:26,188 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:26,188 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:26,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:48:26,189 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:26,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:26,189 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-24 23:48:26,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:26,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225606427] [2020-09-24 23:48:26,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:26,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:26,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:26,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-24 23:48:26,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:26,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-24 23:48:26,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:48:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-24 23:48:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 23:48:26,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:26,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:26,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:26,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:26,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:26,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:26,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:48:26,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:26,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:26,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:26,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:48:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:26,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:26,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:26,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 23:48:26,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:26,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-24 23:48:26,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:48:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:26,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 23:48:26,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:26,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:26,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:27,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:27,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:48:27,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:27,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-24 23:48:27,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:27,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:27,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:27,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 23:48:27,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:27,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:27,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:27,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:27,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 23:48:27,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:27,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 23:48:27,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:27,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 23:48:27,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:27,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:27,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:27,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:27,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 23:48:27,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:27,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 23:48:27,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:27,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:27,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:27,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 23:48:27,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:27,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:27,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:27,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:27,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:48:27,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:27,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 23:48:27,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 23:48:27,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:27,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:27,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:27,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:27,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:27,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:27,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:48:27,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:27,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:27,722 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-24 23:48:27,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225606427] [2020-09-24 23:48:27,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:27,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 23:48:27,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034611638] [2020-09-24 23:48:27,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 23:48:27,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:27,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 23:48:27,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:48:27,726 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 15 states. [2020-09-24 23:48:28,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:28,074 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-24 23:48:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 23:48:28,075 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2020-09-24 23:48:28,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:28,077 INFO L225 Difference]: With dead ends: 54 [2020-09-24 23:48:28,077 INFO L226 Difference]: Without dead ends: 48 [2020-09-24 23:48:28,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:48:28,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-24 23:48:28,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-24 23:48:28,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-24 23:48:28,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-24 23:48:28,091 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-24 23:48:28,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:28,094 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-24 23:48:28,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 23:48:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-24 23:48:28,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 23:48:28,099 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:28,099 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:28,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:48:28,100 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:28,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:28,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-24 23:48:28,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:28,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502300980] [2020-09-24 23:48:28,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:28,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:28,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:28,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:28,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:48:28,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:48:28,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 780 [2020-09-24 23:48:28,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:28,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:48:28,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:48:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:48:28,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:48:28,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:28,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:28,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:28,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:28,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:28,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:28,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:28,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:28,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:48:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:28,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:29,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:29,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:29,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 23:48:29,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:48:29,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 660 [2020-09-24 23:48:29,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:48:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:48:29,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 23:48:29,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:29,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:29,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:29,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:30,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:30,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 23:48:30,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:48:30,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 631 [2020-09-24 23:48:30,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:48:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:30,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 23:48:30,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:30,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:30,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:30,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:30,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:48:30,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:30,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-24 23:48:30,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:48:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:30,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 23:48:30,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:30,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:30,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:30,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:30,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 23:48:30,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:30,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-24 23:48:30,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:30,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:30,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:30,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 23:48:30,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:30,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:30,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:30,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:30,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 23:48:30,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:30,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 23:48:30,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:30,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:48:30,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:30,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:30,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:30,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:30,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:48:30,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:30,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 23:48:30,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:48:30,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:30,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:30,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:30,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:30,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:30,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:30,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:48:30,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:30,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:30,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:30,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:30,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:30,970 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 62 proven. 45 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-09-24 23:48:30,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502300980] [2020-09-24 23:48:30,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:30,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 23:48:30,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118700905] [2020-09-24 23:48:30,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:48:30,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:30,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:48:30,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:48:30,976 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 12 states. [2020-09-24 23:48:31,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:31,323 INFO L93 Difference]: Finished difference Result 86 states and 122 transitions. [2020-09-24 23:48:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 23:48:31,323 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 64 [2020-09-24 23:48:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:31,324 INFO L225 Difference]: With dead ends: 86 [2020-09-24 23:48:31,324 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 23:48:31,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:48:31,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 23:48:31,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 23:48:31,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 23:48:31,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 23:48:31,331 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2020-09-24 23:48:31,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:31,331 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 23:48:31,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:48:31,332 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 23:48:31,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 23:48:31,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 23:48:31,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 23:48:31,476 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 23:48:31,476 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 23:48:31,476 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 23:48:31,476 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 23:48:31,477 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 23:48:31,477 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 23:48:31,477 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-09-24 23:48:31,477 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 15) the Hoare annotation is: true [2020-09-24 23:48:31,477 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 15) no Hoare annotation was computed. [2020-09-24 23:48:31,477 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 23:48:31,478 INFO L268 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-09-24 23:48:31,478 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (= 5 main_~input~0) [2020-09-24 23:48:31,478 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-24 23:48:31,478 INFO L268 CegarLoopResult]: For program point L12-2(lines 9 15) no Hoare annotation was computed. [2020-09-24 23:48:31,478 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-24 23:48:31,478 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-09-24 23:48:31,479 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-24 23:48:31,479 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-24 23:48:31,479 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 7) the Hoare annotation is: true [2020-09-24 23:48:31,479 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (and (<= id_~x |id_#in~x|) (<= |id_#in~x| id_~x)) [2020-09-24 23:48:31,479 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 23:48:31,479 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-24 23:48:31,479 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 23:48:31,480 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-09-24 23:48:31,480 INFO L268 CegarLoopResult]: For program point L6-3(line 6) no Hoare annotation was computed. [2020-09-24 23:48:31,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:48:31 BoogieIcfgContainer [2020-09-24 23:48:31,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 23:48:31,493 INFO L168 Benchmark]: Toolchain (without parser) took 9847.55 ms. Allocated memory was 140.0 MB in the beginning and 306.7 MB in the end (delta: 166.7 MB). Free memory was 103.6 MB in the beginning and 160.0 MB in the end (delta: -56.4 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB. [2020-09-24 23:48:31,499 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 23:48:31,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.59 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 93.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-09-24 23:48:31,502 INFO L168 Benchmark]: Boogie Preprocessor took 29.42 ms. Allocated memory is still 140.0 MB. Free memory was 93.8 MB in the beginning and 92.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-24 23:48:31,502 INFO L168 Benchmark]: RCFGBuilder took 353.54 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.3 MB in the beginning and 170.1 MB in the end (delta: -77.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-24 23:48:31,503 INFO L168 Benchmark]: TraceAbstraction took 9163.18 ms. Allocated memory was 202.4 MB in the beginning and 306.7 MB in the end (delta: 104.3 MB). Free memory was 170.1 MB in the beginning and 160.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 114.4 MB. Max. memory is 7.1 GB. [2020-09-24 23:48:31,516 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 291.59 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 93.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.42 ms. Allocated memory is still 140.0 MB. Free memory was 93.8 MB in the beginning and 92.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 353.54 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.3 MB in the beginning and 170.1 MB in the end (delta: -77.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9163.18 ms. Allocated memory was 202.4 MB in the beginning and 306.7 MB in the end (delta: 104.3 MB). Free memory was 170.1 MB in the beginning and 160.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 114.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.8s, OverallIterations: 7, TraceHistogramMax: 7, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 159 SDtfs, 181 SDslu, 758 SDs, 0 SdLazy, 497 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 19 PreInvPairs, 19 NumberOfFragments, 15 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 100 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 280 NumberOfCodeBlocks, 280 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 37778 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 186/364 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...