/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:25:33,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:25:33,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:25:33,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:25:33,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:25:33,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:25:33,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:25:33,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:25:33,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:25:33,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:25:33,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:25:33,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:25:33,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:25:33,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:25:33,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:25:33,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:25:33,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:25:33,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:25:33,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:25:33,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:25:33,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:25:33,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:25:33,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:25:33,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:25:33,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:25:33,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:25:33,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:25:33,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:25:33,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:25:33,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:25:33,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:25:33,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:25:33,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:25:33,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:25:33,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:25:33,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:25:33,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:25:33,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:25:33,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:25:33,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:25:33,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:25:33,469 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 [2020-09-21 12:25:33,515 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:25:33,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:25:33,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:25:33,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:25:33,518 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:25:33,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:25:33,519 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:25:33,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:25:33,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:25:33,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:25:33,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:25:33,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:25:33,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:25:33,521 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:25:33,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:25:33,522 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:25:33,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:25:33,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:25:33,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:25:33,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:25:33,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:25:33,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:25:33,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:25:33,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:25:33,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:25:33,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:25:33,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:25:33,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:25:33,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:25:33,525 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:25:34,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:25:34,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:25:34,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:25:34,077 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:25:34,077 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:25:34,079 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2020-09-21 12:25:34,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48177ffd8/fc8d75a124a549feb4bb8a7c38cc3677/FLAGb3db8ab5d [2020-09-21 12:25:34,729 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:25:34,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2020-09-21 12:25:34,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48177ffd8/fc8d75a124a549feb4bb8a7c38cc3677/FLAGb3db8ab5d [2020-09-21 12:25:35,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48177ffd8/fc8d75a124a549feb4bb8a7c38cc3677 [2020-09-21 12:25:35,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:25:35,082 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:25:35,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:25:35,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:25:35,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:25:35,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:25:35" (1/1) ... [2020-09-21 12:25:35,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e0c35a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:35, skipping insertion in model container [2020-09-21 12:25:35,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:25:35" (1/1) ... [2020-09-21 12:25:35,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:25:35,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:25:35,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:25:35,368 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:25:35,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:25:35,405 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:25:35,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:35 WrapperNode [2020-09-21 12:25:35,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:25:35,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:25:35,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:25:35,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:25:35,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:35" (1/1) ... [2020-09-21 12:25:35,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:35" (1/1) ... [2020-09-21 12:25:35,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:35" (1/1) ... [2020-09-21 12:25:35,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:35" (1/1) ... [2020-09-21 12:25:35,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:35" (1/1) ... [2020-09-21 12:25:35,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:35" (1/1) ... [2020-09-21 12:25:35,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:35" (1/1) ... [2020-09-21 12:25:35,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:25:35,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:25:35,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:25:35,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:25:35,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:35" (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 [2020-09-21 12:25:35,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:25:35,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:25:35,613 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:25:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:25:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-21 12:25:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:25:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-21 12:25:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:25:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:25:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:25:35,895 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:25:35,896 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 12:25:35,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:25:35 BoogieIcfgContainer [2020-09-21 12:25:35,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:25:35,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:25:35,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:25:35,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:25:35,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:25:35" (1/3) ... [2020-09-21 12:25:35,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e631651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:25:35, skipping insertion in model container [2020-09-21 12:25:35,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:35" (2/3) ... [2020-09-21 12:25:35,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e631651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:25:35, skipping insertion in model container [2020-09-21 12:25:35,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:25:35" (3/3) ... [2020-09-21 12:25:35,915 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2020-09-21 12:25:35,945 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:25:35,965 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:25:35,991 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:25:36,019 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:25:36,020 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:25:36,020 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:25:36,020 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:25:36,020 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:25:36,020 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:25:36,021 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:25:36,021 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:25:36,041 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-09-21 12:25:36,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-21 12:25:36,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:36,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:25:36,048 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:36,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:36,054 INFO L82 PathProgramCache]: Analyzing trace with hash -2134687016, now seen corresponding path program 1 times [2020-09-21 12:25:36,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:36,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831311275] [2020-09-21 12:25:36,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:36,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:36,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:36,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:25:36,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:36,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 12:25:36,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:36,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:36,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:25:36,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:25:36,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:25:36,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:36,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:36,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:36,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:36,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:36,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:25:36,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:36,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:36,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:25:36,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831311275] [2020-09-21 12:25:36,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:36,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:36,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865336550] [2020-09-21 12:25:36,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:36,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:36,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:36,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:36,326 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2020-09-21 12:25:36,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:36,427 INFO L93 Difference]: Finished difference Result 70 states and 116 transitions. [2020-09-21 12:25:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:36,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-21 12:25:36,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:36,442 INFO L225 Difference]: With dead ends: 70 [2020-09-21 12:25:36,442 INFO L226 Difference]: Without dead ends: 39 [2020-09-21 12:25:36,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:36,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-21 12:25:36,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-09-21 12:25:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 12:25:36,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-09-21 12:25:36,500 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 8 [2020-09-21 12:25:36,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:36,500 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-09-21 12:25:36,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:36,501 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-09-21 12:25:36,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 12:25:36,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:36,502 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:25:36,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:25:36,502 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:36,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:36,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1966827798, now seen corresponding path program 1 times [2020-09-21 12:25:36,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:36,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772548790] [2020-09-21 12:25:36,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:36,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:36,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:36,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:36,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 12:25:36,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:25:36,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-21 12:25:36,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:36,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:36,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 12:25:36,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:25:36,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:25:36,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:36,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:36,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:36,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:36,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:36,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:25:36,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:36,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:36,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:36,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:36,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:25:36,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:25:36,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772548790] [2020-09-21 12:25:36,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:36,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:36,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507979098] [2020-09-21 12:25:36,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:36,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:36,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:36,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:36,632 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2020-09-21 12:25:36,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:36,713 INFO L93 Difference]: Finished difference Result 73 states and 110 transitions. [2020-09-21 12:25:36,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:36,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-09-21 12:25:36,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:36,720 INFO L225 Difference]: With dead ends: 73 [2020-09-21 12:25:36,720 INFO L226 Difference]: Without dead ends: 55 [2020-09-21 12:25:36,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:36,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-21 12:25:36,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-21 12:25:36,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-21 12:25:36,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2020-09-21 12:25:36,744 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 13 [2020-09-21 12:25:36,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:36,744 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2020-09-21 12:25:36,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:36,745 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2020-09-21 12:25:36,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-21 12:25:36,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:36,747 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:25:36,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:25:36,747 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:36,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:36,748 INFO L82 PathProgramCache]: Analyzing trace with hash 280007728, now seen corresponding path program 1 times [2020-09-21 12:25:36,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:36,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55547306] [2020-09-21 12:25:36,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:36,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:36,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:36,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 12:25:36,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:36,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:25:36,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:36,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:36,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 12:25:36,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:25:36,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:36,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:36,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:36,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:36,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:36,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:36,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:25:36,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:36,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:36,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:25:36,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55547306] [2020-09-21 12:25:36,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:36,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:36,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529344726] [2020-09-21 12:25:36,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:36,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:36,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:36,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:36,846 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand 3 states. [2020-09-21 12:25:36,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:36,897 INFO L93 Difference]: Finished difference Result 107 states and 157 transitions. [2020-09-21 12:25:36,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:36,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-09-21 12:25:36,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:36,900 INFO L225 Difference]: With dead ends: 107 [2020-09-21 12:25:36,900 INFO L226 Difference]: Without dead ends: 73 [2020-09-21 12:25:36,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:36,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-21 12:25:36,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2020-09-21 12:25:36,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-21 12:25:36,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 103 transitions. [2020-09-21 12:25:36,914 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 103 transitions. Word has length 20 [2020-09-21 12:25:36,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:36,915 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 103 transitions. [2020-09-21 12:25:36,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:36,915 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 103 transitions. [2020-09-21 12:25:36,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-21 12:25:36,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:36,916 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:25:36,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:25:36,917 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:36,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:36,917 INFO L82 PathProgramCache]: Analyzing trace with hash 885328029, now seen corresponding path program 1 times [2020-09-21 12:25:36,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:36,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486589156] [2020-09-21 12:25:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:36,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:36,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:36,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:25:36,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:36,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 12:25:36,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:36,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:36,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-21 12:25:36,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:25:36,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:25:36,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:36,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:37,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:37,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:37,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:37,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:25:37,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:37,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:37,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:37,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:37,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:25:37,005 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:25:37,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486589156] [2020-09-21 12:25:37,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:37,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:37,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769138433] [2020-09-21 12:25:37,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:37,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:37,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:37,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:37,008 INFO L87 Difference]: Start difference. First operand 71 states and 103 transitions. Second operand 3 states. [2020-09-21 12:25:37,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:37,074 INFO L93 Difference]: Finished difference Result 141 states and 205 transitions. [2020-09-21 12:25:37,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:37,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-09-21 12:25:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:37,076 INFO L225 Difference]: With dead ends: 141 [2020-09-21 12:25:37,076 INFO L226 Difference]: Without dead ends: 61 [2020-09-21 12:25:37,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:37,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-21 12:25:37,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-09-21 12:25:37,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-21 12:25:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2020-09-21 12:25:37,087 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 23 [2020-09-21 12:25:37,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:37,087 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2020-09-21 12:25:37,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2020-09-21 12:25:37,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-21 12:25:37,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:37,089 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:25:37,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:25:37,090 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:37,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:37,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1155086362, now seen corresponding path program 1 times [2020-09-21 12:25:37,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:37,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572638584] [2020-09-21 12:25:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:37,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:37,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:37,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:37,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:37,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:37,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-21 12:25:37,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:25:37,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-21 12:25:37,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:37,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:37,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 12:25:37,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 12:25:37,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:25:37,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:37,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:37,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:37,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:37,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:37,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:25:37,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:37,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:37,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:37,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:37,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:37,364 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 12:25:37,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572638584] [2020-09-21 12:25:37,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:37,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:37,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346039666] [2020-09-21 12:25:37,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:37,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:37,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:37,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:37,367 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand 3 states. [2020-09-21 12:25:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:37,394 INFO L93 Difference]: Finished difference Result 99 states and 122 transitions. [2020-09-21 12:25:37,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:37,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-09-21 12:25:37,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:37,395 INFO L225 Difference]: With dead ends: 99 [2020-09-21 12:25:37,395 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:25:37,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:37,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:25:37,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:25:37,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:25:37,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:25:37,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2020-09-21 12:25:37,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:37,398 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:25:37,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:37,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:25:37,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:25:37,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:25:37,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:25:37,645 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-21 12:25:37,646 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:25:37,646 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:25:37,646 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 12:25:37,646 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:25:37,646 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:25:37,646 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 8 140) no Hoare annotation was computed. [2020-09-21 12:25:37,646 INFO L268 CegarLoopResult]: For program point L77-1(lines 53 106) no Hoare annotation was computed. [2020-09-21 12:25:37,647 INFO L268 CegarLoopResult]: For program point L69(lines 69 73) no Hoare annotation was computed. [2020-09-21 12:25:37,647 INFO L268 CegarLoopResult]: For program point L24(lines 24 127) no Hoare annotation was computed. [2020-09-21 12:25:37,647 INFO L268 CegarLoopResult]: For program point L57-1(lines 53 106) no Hoare annotation was computed. [2020-09-21 12:25:37,647 INFO L268 CegarLoopResult]: For program point L49(lines 49 108) no Hoare annotation was computed. [2020-09-21 12:25:37,647 INFO L268 CegarLoopResult]: For program point L45(lines 45 110) no Hoare annotation was computed. [2020-09-21 12:25:37,647 INFO L271 CegarLoopResult]: At program point L136(lines 8 140) the Hoare annotation is: true [2020-09-21 12:25:37,648 INFO L264 CegarLoopResult]: At program point L99(lines 17 134) the Hoare annotation is: (or (and (<= 8640 main_~s__state~0) (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))) (<= main_~blastFlag~0 2)) [2020-09-21 12:25:37,648 INFO L268 CegarLoopResult]: For program point L95(lines 95 97) no Hoare annotation was computed. [2020-09-21 12:25:37,648 INFO L268 CegarLoopResult]: For program point L29(lines 29 124) no Hoare annotation was computed. [2020-09-21 12:25:37,648 INFO L264 CegarLoopResult]: At program point L25(lines 24 127) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-21 12:25:37,648 INFO L264 CegarLoopResult]: At program point L50(lines 49 108) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))))) [2020-09-21 12:25:37,649 INFO L264 CegarLoopResult]: At program point L46(lines 45 110) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))))) [2020-09-21 12:25:37,649 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 8 140) no Hoare annotation was computed. [2020-09-21 12:25:37,649 INFO L264 CegarLoopResult]: At program point L96(lines 8 140) the Hoare annotation is: false [2020-09-21 12:25:37,649 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 138) no Hoare annotation was computed. [2020-09-21 12:25:37,650 INFO L264 CegarLoopResult]: At program point L30(lines 29 124) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-21 12:25:37,650 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 8 140) the Hoare annotation is: true [2020-09-21 12:25:37,650 INFO L268 CegarLoopResult]: For program point L92-1(lines 53 106) no Hoare annotation was computed. [2020-09-21 12:25:37,650 INFO L268 CegarLoopResult]: For program point L88-1(lines 53 106) no Hoare annotation was computed. [2020-09-21 12:25:37,650 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-21 12:25:37,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:25:37 BoogieIcfgContainer [2020-09-21 12:25:37,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:25:37,676 INFO L168 Benchmark]: Toolchain (without parser) took 2597.27 ms. Allocated memory was 149.4 MB in the beginning and 232.3 MB in the end (delta: 82.8 MB). Free memory was 105.5 MB in the beginning and 161.5 MB in the end (delta: -55.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:37,677 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 149.4 MB. Free memory was 123.9 MB in the beginning and 123.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 12:25:37,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.37 ms. Allocated memory is still 149.4 MB. Free memory was 104.9 MB in the beginning and 94.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:37,679 INFO L168 Benchmark]: Boogie Preprocessor took 126.54 ms. Allocated memory was 149.4 MB in the beginning and 204.5 MB in the end (delta: 55.1 MB). Free memory was 94.7 MB in the beginning and 182.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:37,680 INFO L168 Benchmark]: RCFGBuilder took 367.42 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 168.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:37,681 INFO L168 Benchmark]: TraceAbstraction took 1767.34 ms. Allocated memory was 204.5 MB in the beginning and 232.3 MB in the end (delta: 27.8 MB). Free memory was 167.9 MB in the beginning and 161.5 MB in the end (delta: 6.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:37,686 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 149.4 MB. Free memory was 123.9 MB in the beginning and 123.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 323.37 ms. Allocated memory is still 149.4 MB. Free memory was 104.9 MB in the beginning and 94.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.54 ms. Allocated memory was 149.4 MB in the beginning and 204.5 MB in the end (delta: 55.1 MB). Free memory was 94.7 MB in the beginning and 182.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 367.42 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 168.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1767.34 ms. Allocated memory was 204.5 MB in the beginning and 232.3 MB in the end (delta: 27.8 MB). Free memory was 167.9 MB in the beginning and 161.5 MB in the end (delta: 6.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 138]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) || blastFlag <= 2 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 147 SDtfs, 81 SDslu, 98 SDs, 0 SdLazy, 77 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 31 NumberOfFragments, 65 HoareAnnotationTreeSize, 11 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 4434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 40/40 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...