/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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_b2_o3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:19:58,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:19:58,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:19:58,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:19:58,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:19:58,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:19:58,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:19:58,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:19:58,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:19:58,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:19:58,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:19:58,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:19:58,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:19:58,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:19:58,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:19:58,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:19:58,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:19:58,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:19:58,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:19:58,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:19:58,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:19:58,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:19:58,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:19:58,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:19:58,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:19:58,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:19:58,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:19:58,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:19:58,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:19:58,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:19:58,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:19:58,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:19:58,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:19:58,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:19:58,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:19:58,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:19:58,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:19:58,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:19:58,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:19:58,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:19:58,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:19:58,519 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:19:58,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:19:58,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:19:58,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:19:58,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:19:58,556 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:19:58,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:19:58,557 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:19:58,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:19:58,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:19:58,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:19:58,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:19:58,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:19:58,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:19:58,558 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:19:58,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:19:58,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:19:58,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:19:58,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:19:58,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:19:58,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:19:58,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:19:58,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:19:58,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:19:58,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:19:58,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:19:58,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:19:58,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:19:58,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:19:58,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:19:58,562 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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:19:59,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:19:59,038 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:19:59,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:19:59,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:19:59,045 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:19:59,046 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_b2_o3.c [2020-09-25 04:19:59,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ce2a1612/cdcbed5883914c1fa2a5adfe72321e66/FLAGf6cf64a5a [2020-09-25 04:19:59,747 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:19:59,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_b2_o3.c [2020-09-25 04:19:59,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ce2a1612/cdcbed5883914c1fa2a5adfe72321e66/FLAGf6cf64a5a [2020-09-25 04:20:00,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ce2a1612/cdcbed5883914c1fa2a5adfe72321e66 [2020-09-25 04:20:00,128 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:20:00,134 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:20:00,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:20:00,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:20:00,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:20:00,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:20:00" (1/1) ... [2020-09-25 04:20:00,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d786d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:00, skipping insertion in model container [2020-09-25 04:20:00,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:20:00" (1/1) ... [2020-09-25 04:20:00,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:20:00,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:20:00,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:20:00,408 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:20:00,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:20:00,439 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:20:00,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:00 WrapperNode [2020-09-25 04:20:00,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:20:00,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:20:00,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:20:00,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:20:00,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:00" (1/1) ... [2020-09-25 04:20:00,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:00" (1/1) ... [2020-09-25 04:20:00,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:00" (1/1) ... [2020-09-25 04:20:00,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:00" (1/1) ... [2020-09-25 04:20:00,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:00" (1/1) ... [2020-09-25 04:20:00,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:00" (1/1) ... [2020-09-25 04:20:00,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:00" (1/1) ... [2020-09-25 04:20:00,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:20:00,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:20:00,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:20:00,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:20:00,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:20:00,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:20:00,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:20:00,632 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 04:20:00,632 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:20:00,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 04:20:00,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:20:00,633 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 04:20:00,633 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:20:00,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:20:00,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:20:00,844 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:20:00,845 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 04:20:00,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:20:00 BoogieIcfgContainer [2020-09-25 04:20:00,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:20:00,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:20:00,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:20:00,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:20:00,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:20:00" (1/3) ... [2020-09-25 04:20:00,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b1d210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:20:00, skipping insertion in model container [2020-09-25 04:20:00,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:00" (2/3) ... [2020-09-25 04:20:00,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b1d210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:20:00, skipping insertion in model container [2020-09-25 04:20:00,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:20:00" (3/3) ... [2020-09-25 04:20:00,875 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b2_o3.c [2020-09-25 04:20:00,907 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:20:00,935 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:20:00,967 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:20:00,995 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:20:00,996 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:20:00,996 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:20:00,996 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:20:00,996 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:20:00,996 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:20:00,997 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:20:00,997 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:20:01,016 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-25 04:20:01,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 04:20:01,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:01,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:01,024 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:01,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:01,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1920796714, now seen corresponding path program 1 times [2020-09-25 04:20:01,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:01,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083726407] [2020-09-25 04:20:01,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:01,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:01,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:01,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:20:01,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:01,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 04:20:01,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:01,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:01,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:20:01,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:20:01,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:01,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:20:01,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:01,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:01,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:01,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:01,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:01,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:20:01,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:01,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:01,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:01,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:01,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:01,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:01,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:01,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:01,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:01,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 04:20:01,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:01,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:01,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:01,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:20:01,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:20:01,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083726407] [2020-09-25 04:20:01,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:20:01,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:20:01,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355836136] [2020-09-25 04:20:01,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:20:01,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:01,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:20:01,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:20:01,451 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-09-25 04:20:01,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:01,543 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2020-09-25 04:20:01,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:20:01,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 04:20:01,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:01,559 INFO L225 Difference]: With dead ends: 40 [2020-09-25 04:20:01,559 INFO L226 Difference]: Without dead ends: 25 [2020-09-25 04:20:01,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:20:01,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-25 04:20:01,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-25 04:20:01,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-25 04:20:01,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-09-25 04:20:01,612 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 16 [2020-09-25 04:20:01,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:01,613 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-09-25 04:20:01,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:20:01,614 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-09-25 04:20:01,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 04:20:01,616 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:01,616 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, 1] [2020-09-25 04:20:01,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:20:01,617 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:01,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:01,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1151880470, now seen corresponding path program 1 times [2020-09-25 04:20:01,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:01,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530721873] [2020-09-25 04:20:01,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:01,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:01,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:02,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:02,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:20:02,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:20:02,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-09-25 04:20:02,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:02,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:02,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:02,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 04:20:02,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:20:02,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:20:02,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:02,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:02,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:02,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:02,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:02,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:20:02,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:02,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:02,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 04:20:02,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:02,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:02,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:02,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:02,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:20:02,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:20:02,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-25 04:20:02,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:02,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:20:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 04:20:02,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:02,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:02,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:02,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:02,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:02,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:02,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:20:02,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:02,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:02,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:02,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:20:02,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 04:20:02,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530721873] [2020-09-25 04:20:02,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:20:02,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:20:02,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16371785] [2020-09-25 04:20:02,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:20:02,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:02,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:20:02,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:20:02,450 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 6 states. [2020-09-25 04:20:02,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:02,556 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2020-09-25 04:20:02,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:20:02,558 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-25 04:20:02,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:02,558 INFO L225 Difference]: With dead ends: 27 [2020-09-25 04:20:02,558 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 04:20:02,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:20:02,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 04:20:02,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 04:20:02,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 04:20:02,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 04:20:02,562 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-09-25 04:20:02,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:02,563 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 04:20:02,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:20:02,563 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 04:20:02,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 04:20:02,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:20:02,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 04:20:02,613 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 04:20:02,613 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 04:20:02,613 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 04:20:02,614 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 04:20:02,614 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 04:20:02,614 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 04:20:02,614 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2020-09-25 04:20:02,614 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true [2020-09-25 04:20:02,615 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed. [2020-09-25 04:20:02,615 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 04:20:02,615 INFO L268 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-09-25 04:20:02,615 INFO L271 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-09-25 04:20:02,615 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 04:20:02,615 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-25 04:20:02,615 INFO L268 CegarLoopResult]: For program point L14-2(lines 11 17) no Hoare annotation was computed. [2020-09-25 04:20:02,616 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-25 04:20:02,616 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2020-09-25 04:20:02,616 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2020-09-25 04:20:02,616 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2020-09-25 04:20:02,616 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 04:20:02,617 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 04:20:02,617 INFO L271 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: true [2020-09-25 04:20:02,617 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-09-25 04:20:02,617 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 04:20:02,617 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 04:20:02,617 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-25 04:20:02,617 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-09-25 04:20:02,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:20:02 BoogieIcfgContainer [2020-09-25 04:20:02,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:20:02,634 INFO L168 Benchmark]: Toolchain (without parser) took 2501.36 ms. Allocated memory was 146.3 MB in the beginning and 235.4 MB in the end (delta: 89.1 MB). Free memory was 102.9 MB in the beginning and 201.1 MB in the end (delta: -98.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 04:20:02,636 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 04:20:02,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.63 ms. Allocated memory is still 146.3 MB. Free memory was 102.3 MB in the beginning and 93.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-25 04:20:02,638 INFO L168 Benchmark]: Boogie Preprocessor took 116.14 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 93.0 MB in the beginning and 181.4 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:20:02,640 INFO L168 Benchmark]: RCFGBuilder took 294.53 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 169.1 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-25 04:20:02,642 INFO L168 Benchmark]: TraceAbstraction took 1772.14 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 168.5 MB in the beginning and 201.1 MB in the end (delta: -32.7 MB). Peak memory consumption was 363.7 kB. Max. memory is 7.1 GB. [2020-09-25 04:20:02,653 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 304.63 ms. Allocated memory is still 146.3 MB. Free memory was 102.3 MB in the beginning and 93.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.14 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 93.0 MB in the beginning and 181.4 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 294.53 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 169.1 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1772.14 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 168.5 MB in the beginning and 201.1 MB in the end (delta: -32.7 MB). Peak memory consumption was 363.7 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 6 SDslu, 157 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 2319 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 4/4 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...