/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-invgen/apache-get-tag.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:48:54,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:48:54,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:48:55,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:48:55,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:48:55,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:48:55,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:48:55,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:48:55,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:48:55,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:48:55,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:48:55,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:48:55,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:48:55,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:48:55,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:48:55,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:48:55,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:48:55,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:48:55,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:48:55,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:48:55,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:48:55,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:48:55,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:48:55,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:48:55,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 16:48:55,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:48:55,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:48:55,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:48:55,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:48:55,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:48:55,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:48:55,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:48:55,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:48:55,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:48:55,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:48:55,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:48:55,121 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 16:48:55,171 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:48:55,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:48:55,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:48:55,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:48:55,176 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:48:55,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:48:55,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:48:55,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:48:55,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:48:55,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:48:55,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:48:55,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:48:55,178 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:48:55,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:48:55,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:48:55,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:48:55,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:48:55,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:48:55,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:48:55,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:48:55,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:48:55,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:48:55,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:48:55,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:48:55,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:48:55,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:48:55,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:48:55,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:48:55,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:48:55,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:48:55,704 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:48:55,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2021-01-06 16:48:55,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a344499ec/e14a8ecda2ac4a8097d90710e0f3589e/FLAG648633115 [2021-01-06 16:48:56,384 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:48:56,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2021-01-06 16:48:56,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a344499ec/e14a8ecda2ac4a8097d90710e0f3589e/FLAG648633115 [2021-01-06 16:48:56,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a344499ec/e14a8ecda2ac4a8097d90710e0f3589e [2021-01-06 16:48:56,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:48:56,413 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:48:56,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:48:56,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:48:56,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:48:56,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:48:56" (1/1) ... [2021-01-06 16:48:56,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c8f0c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56, skipping insertion in model container [2021-01-06 16:48:56,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:48:56" (1/1) ... [2021-01-06 16:48:56,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:48:56,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 16:48:56,596 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i[893,906] left hand side expression in assignment: lhs: VariableLHS[~tagbuf_len~0,] left hand side expression in assignment: lhs: VariableLHS[~t~0,] [2021-01-06 16:48:56,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:48:56,627 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 16:48:56,642 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i[893,906] left hand side expression in assignment: lhs: VariableLHS[~tagbuf_len~0,] left hand side expression in assignment: lhs: VariableLHS[~t~0,] [2021-01-06 16:48:56,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:48:56,667 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:48:56,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56 WrapperNode [2021-01-06 16:48:56,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:48:56,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:48:56,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:48:56,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:48:56,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56" (1/1) ... [2021-01-06 16:48:56,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56" (1/1) ... [2021-01-06 16:48:56,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:48:56,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:48:56,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:48:56,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:48:56,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56" (1/1) ... [2021-01-06 16:48:56,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56" (1/1) ... [2021-01-06 16:48:56,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56" (1/1) ... [2021-01-06 16:48:56,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56" (1/1) ... [2021-01-06 16:48:56,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56" (1/1) ... [2021-01-06 16:48:56,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56" (1/1) ... [2021-01-06 16:48:56,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56" (1/1) ... [2021-01-06 16:48:56,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:48:56,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:48:56,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:48:56,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:48:56,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 16:48:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:48:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:48:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:48:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:48:57,462 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:48:57,463 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-01-06 16:48:57,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:48:57 BoogieIcfgContainer [2021-01-06 16:48:57,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:48:57,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:48:57,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:48:57,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:48:57,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:48:56" (1/3) ... [2021-01-06 16:48:57,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b3de54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:48:57, skipping insertion in model container [2021-01-06 16:48:57,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:48:56" (2/3) ... [2021-01-06 16:48:57,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b3de54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:48:57, skipping insertion in model container [2021-01-06 16:48:57,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:48:57" (3/3) ... [2021-01-06 16:48:57,474 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i [2021-01-06 16:48:57,480 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:48:57,485 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2021-01-06 16:48:57,506 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-01-06 16:48:57,533 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:48:57,534 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:48:57,534 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:48:57,534 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:48:57,534 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:48:57,534 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:48:57,534 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:48:57,535 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:48:57,555 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2021-01-06 16:48:57,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 16:48:57,561 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:48:57,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:48:57,562 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:48:57,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:48:57,569 INFO L82 PathProgramCache]: Analyzing trace with hash 119561572, now seen corresponding path program 1 times [2021-01-06 16:48:57,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:48:57,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543489439] [2021-01-06 16:48:57,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:48:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:48:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:48:57,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543489439] [2021-01-06 16:48:57,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:48:57,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 16:48:57,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776920713] [2021-01-06 16:48:57,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 16:48:57,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:48:57,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 16:48:57,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 16:48:57,782 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2021-01-06 16:48:57,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:48:57,826 INFO L93 Difference]: Finished difference Result 156 states and 209 transitions. [2021-01-06 16:48:57,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 16:48:57,828 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-01-06 16:48:57,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:48:57,844 INFO L225 Difference]: With dead ends: 156 [2021-01-06 16:48:57,844 INFO L226 Difference]: Without dead ends: 76 [2021-01-06 16:48:57,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 16:48:57,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-01-06 16:48:57,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-01-06 16:48:57,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-01-06 16:48:57,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2021-01-06 16:48:57,900 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 8 [2021-01-06 16:48:57,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:48:57,900 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2021-01-06 16:48:57,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 16:48:57,901 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2021-01-06 16:48:57,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 16:48:57,901 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:48:57,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:48:57,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:48:57,902 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:48:57,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:48:57,903 INFO L82 PathProgramCache]: Analyzing trace with hash 119567532, now seen corresponding path program 1 times [2021-01-06 16:48:57,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:48:57,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714819182] [2021-01-06 16:48:57,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:48:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:48:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:48:57,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714819182] [2021-01-06 16:48:57,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:48:57,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 16:48:57,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265510065] [2021-01-06 16:48:57,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 16:48:57,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:48:57,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 16:48:57,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:48:57,989 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 4 states. [2021-01-06 16:48:58,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:48:58,191 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2021-01-06 16:48:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 16:48:58,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-01-06 16:48:58,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:48:58,193 INFO L225 Difference]: With dead ends: 80 [2021-01-06 16:48:58,193 INFO L226 Difference]: Without dead ends: 64 [2021-01-06 16:48:58,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 16:48:58,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-01-06 16:48:58,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2021-01-06 16:48:58,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2021-01-06 16:48:58,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2021-01-06 16:48:58,203 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 8 [2021-01-06 16:48:58,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:48:58,204 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2021-01-06 16:48:58,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 16:48:58,204 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2021-01-06 16:48:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 16:48:58,205 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:48:58,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:48:58,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 16:48:58,205 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:48:58,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:48:58,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1059562897, now seen corresponding path program 1 times [2021-01-06 16:48:58,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:48:58,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617129059] [2021-01-06 16:48:58,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:48:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:48:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:48:58,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617129059] [2021-01-06 16:48:58,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:48:58,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 16:48:58,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353802594] [2021-01-06 16:48:58,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 16:48:58,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:48:58,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 16:48:58,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:48:58,279 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 4 states. [2021-01-06 16:48:58,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:48:58,457 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2021-01-06 16:48:58,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 16:48:58,458 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-01-06 16:48:58,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:48:58,459 INFO L225 Difference]: With dead ends: 64 [2021-01-06 16:48:58,459 INFO L226 Difference]: Without dead ends: 49 [2021-01-06 16:48:58,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 16:48:58,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-01-06 16:48:58,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2021-01-06 16:48:58,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-01-06 16:48:58,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-01-06 16:48:58,468 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 10 [2021-01-06 16:48:58,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:48:58,468 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-01-06 16:48:58,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 16:48:58,469 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-01-06 16:48:58,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 16:48:58,469 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:48:58,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:48:58,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 16:48:58,470 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:48:58,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:48:58,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2103968171, now seen corresponding path program 1 times [2021-01-06 16:48:58,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:48:58,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993108329] [2021-01-06 16:48:58,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:48:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:48:58,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:48:58,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993108329] [2021-01-06 16:48:58,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:48:58,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 16:48:58,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813745910] [2021-01-06 16:48:58,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 16:48:58,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:48:58,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 16:48:58,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 16:48:58,548 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 5 states. [2021-01-06 16:48:58,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:48:58,786 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2021-01-06 16:48:58,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 16:48:58,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2021-01-06 16:48:58,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:48:58,789 INFO L225 Difference]: With dead ends: 61 [2021-01-06 16:48:58,789 INFO L226 Difference]: Without dead ends: 57 [2021-01-06 16:48:58,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 16:48:58,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-01-06 16:48:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2021-01-06 16:48:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-01-06 16:48:58,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-01-06 16:48:58,814 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 11 [2021-01-06 16:48:58,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:48:58,815 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-01-06 16:48:58,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 16:48:58,815 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-01-06 16:48:58,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 16:48:58,816 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:48:58,816 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:48:58,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 16:48:58,817 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:48:58,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:48:58,818 INFO L82 PathProgramCache]: Analyzing trace with hash -125691866, now seen corresponding path program 1 times [2021-01-06 16:48:58,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:48:58,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838820430] [2021-01-06 16:48:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:48:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:48:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:48:59,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838820430] [2021-01-06 16:48:59,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458564106] [2021-01-06 16:48:59,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:48:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:48:59,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 19 conjunts are in the unsatisfiable core [2021-01-06 16:48:59,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 16:48:59,401 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 16:48:59,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:48:59,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 16:48:59,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-01-06 16:48:59,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186784555] [2021-01-06 16:48:59,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-01-06 16:48:59,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:48:59,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-01-06 16:48:59,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-01-06 16:48:59,436 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 14 states. [2021-01-06 16:49:00,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:49:00,072 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2021-01-06 16:49:00,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 16:49:00,073 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2021-01-06 16:49:00,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:49:00,073 INFO L225 Difference]: With dead ends: 87 [2021-01-06 16:49:00,074 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 16:49:00,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-01-06 16:49:00,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 16:49:00,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 16:49:00,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 16:49:00,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 16:49:00,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-01-06 16:49:00,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:49:00,076 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 16:49:00,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-01-06 16:49:00,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 16:49:00,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 16:49:00,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:49:00,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-01-06 16:49:00,926 INFO L185 CegarLoopUtils]: At program point L18-17(lines 17 22) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,926 INFO L189 CegarLoopUtils]: For program point L18-18(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,927 INFO L185 CegarLoopUtils]: At program point L18-20(lines 17 22) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,927 INFO L189 CegarLoopUtils]: For program point L18-21(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,927 INFO L189 CegarLoopUtils]: For program point L18-24(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,927 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,927 INFO L185 CegarLoopUtils]: At program point L18-26(lines 17 22) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,927 INFO L189 CegarLoopUtils]: For program point L18-27(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,928 INFO L185 CegarLoopUtils]: At program point L18-29(lines 17 22) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,928 INFO L189 CegarLoopUtils]: For program point L18-30(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,928 INFO L189 CegarLoopUtils]: For program point L19(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,928 INFO L189 CegarLoopUtils]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,928 INFO L185 CegarLoopUtils]: At program point L18-32(lines 17 22) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,928 INFO L189 CegarLoopUtils]: For program point L19-2(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,929 INFO L189 CegarLoopUtils]: For program point L18-33(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,929 INFO L189 CegarLoopUtils]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,929 INFO L189 CegarLoopUtils]: For program point L19-4(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,929 INFO L189 CegarLoopUtils]: For program point L19-5(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,929 INFO L189 CegarLoopUtils]: For program point L18-36(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,929 INFO L189 CegarLoopUtils]: For program point L19-6(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,929 INFO L189 CegarLoopUtils]: For program point L19-7(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,930 INFO L185 CegarLoopUtils]: At program point L18-38(lines 17 22) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,930 INFO L189 CegarLoopUtils]: For program point L19-8(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,930 INFO L189 CegarLoopUtils]: For program point L18-39(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,930 INFO L189 CegarLoopUtils]: For program point L19-9(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,930 INFO L189 CegarLoopUtils]: For program point L19-10(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,930 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,931 INFO L185 CegarLoopUtils]: At program point L18-41(lines 17 22) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,931 INFO L189 CegarLoopUtils]: For program point L19-11(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,931 INFO L189 CegarLoopUtils]: For program point L18-42(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,931 INFO L189 CegarLoopUtils]: For program point L19-12(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,931 INFO L189 CegarLoopUtils]: For program point L19-13(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,932 INFO L185 CegarLoopUtils]: At program point L18-44(lines 17 22) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,932 INFO L189 CegarLoopUtils]: For program point L19-14(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,932 INFO L189 CegarLoopUtils]: For program point L18-45(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,932 INFO L189 CegarLoopUtils]: For program point L19-15(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,932 INFO L192 CegarLoopUtils]: At program point L18-47(lines 17 22) the Hoare annotation is: true [2021-01-06 16:49:00,932 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-01-06 16:49:00,932 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,933 INFO L189 CegarLoopUtils]: For program point L54(lines 54 68) no Hoare annotation was computed. [2021-01-06 16:49:00,933 INFO L189 CegarLoopUtils]: For program point L54-1(lines 54 68) no Hoare annotation was computed. [2021-01-06 16:49:00,933 INFO L189 CegarLoopUtils]: For program point L38(lines 38 40) no Hoare annotation was computed. [2021-01-06 16:49:00,933 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,933 INFO L189 CegarLoopUtils]: For program point L55(lines 55 64) no Hoare annotation was computed. [2021-01-06 16:49:00,933 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,933 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-01-06 16:49:00,934 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,934 INFO L189 CegarLoopUtils]: For program point L59(lines 59 63) no Hoare annotation was computed. [2021-01-06 16:49:00,934 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,934 INFO L192 CegarLoopUtils]: At program point L76(lines 24 77) the Hoare annotation is: true [2021-01-06 16:49:00,934 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,934 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,934 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,935 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-01-06 16:49:00,935 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,935 INFO L189 CegarLoopUtils]: For program point L29(line 29) no Hoare annotation was computed. [2021-01-06 16:49:00,935 INFO L189 CegarLoopUtils]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-01-06 16:49:00,935 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,935 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,936 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,936 INFO L185 CegarLoopUtils]: At program point L48-2(lines 48 72) the Hoare annotation is: (and (< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2021-01-06 16:49:00,936 INFO L189 CegarLoopUtils]: For program point L48-3(lines 48 72) no Hoare annotation was computed. [2021-01-06 16:49:00,936 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2021-01-06 16:49:00,936 INFO L185 CegarLoopUtils]: At program point L32-2(lines 32 44) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0)) (and (< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0))) [2021-01-06 16:49:00,936 INFO L189 CegarLoopUtils]: For program point L32-3(lines 32 44) no Hoare annotation was computed. [2021-01-06 16:49:00,937 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,937 INFO L189 CegarLoopUtils]: For program point L49(lines 49 53) no Hoare annotation was computed. [2021-01-06 16:49:00,937 INFO L189 CegarLoopUtils]: For program point L66(lines 66 68) no Hoare annotation was computed. [2021-01-06 16:49:00,937 INFO L189 CegarLoopUtils]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-01-06 16:49:00,937 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:49:00,937 INFO L189 CegarLoopUtils]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,937 INFO L185 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,938 INFO L189 CegarLoopUtils]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,938 INFO L189 CegarLoopUtils]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,938 INFO L185 CegarLoopUtils]: At program point L18-8(lines 17 22) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,938 INFO L189 CegarLoopUtils]: For program point L18-9(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,938 INFO L185 CegarLoopUtils]: At program point L18-11(lines 17 22) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,938 INFO L189 CegarLoopUtils]: For program point L18-12(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,939 INFO L185 CegarLoopUtils]: At program point L18-14(lines 17 22) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-01-06 16:49:00,939 INFO L189 CegarLoopUtils]: For program point L18-15(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:49:00,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:49:00 BoogieIcfgContainer [2021-01-06 16:49:00,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:49:00,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:49:00,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:49:00,966 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:49:00,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:48:57" (3/4) ... [2021-01-06 16:49:00,970 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 16:49:00,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-01-06 16:49:00,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 16:49:00,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 16:49:00,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 16:49:01,058 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-invgen/apache-get-tag.i-witness.graphml [2021-01-06 16:49:01,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:49:01,061 INFO L168 Benchmark]: Toolchain (without parser) took 4647.61 ms. Allocated memory was 151.0 MB in the beginning and 192.9 MB in the end (delta: 41.9 MB). Free memory was 126.5 MB in the beginning and 123.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 45.7 MB. Max. memory is 8.0 GB. [2021-01-06 16:49:01,061 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:49:01,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.61 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 16:49:01,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.12 ms. Allocated memory is still 151.0 MB. Free memory was 116.1 MB in the beginning and 114.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:49:01,063 INFO L168 Benchmark]: Boogie Preprocessor took 31.63 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 112.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:49:01,063 INFO L168 Benchmark]: RCFGBuilder took 716.64 ms. Allocated memory is still 151.0 MB. Free memory was 112.8 MB in the beginning and 127.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 8.0 GB. [2021-01-06 16:49:01,064 INFO L168 Benchmark]: TraceAbstraction took 3498.86 ms. Allocated memory was 151.0 MB in the beginning and 192.9 MB in the end (delta: 41.9 MB). Free memory was 127.1 MB in the beginning and 127.8 MB in the end (delta: -759.2 kB). Peak memory consumption was 96.8 MB. Max. memory is 8.0 GB. [2021-01-06 16:49:01,065 INFO L168 Benchmark]: Witness Printer took 92.78 ms. Allocated memory is still 192.9 MB. Free memory was 127.8 MB in the beginning and 123.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-01-06 16:49:01,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 253.61 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 46.12 ms. Allocated memory is still 151.0 MB. Free memory was 116.1 MB in the beginning and 114.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.63 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 112.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 716.64 ms. Allocated memory is still 151.0 MB. Free memory was 112.8 MB in the beginning and 127.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3498.86 ms. Allocated memory was 151.0 MB in the beginning and 192.9 MB in the end (delta: 41.9 MB). Free memory was 127.1 MB in the beginning and 127.8 MB in the end (delta: -759.2 kB). Peak memory consumption was 96.8 MB. Max. memory is 8.0 GB. * Witness Printer took 92.78 ms. Allocated memory is still 192.9 MB. Free memory was 127.8 MB in the beginning and 123.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!(0 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((!(t == tagbuf_len) && 1 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((!(t == tagbuf_len) && 1 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!(0 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!(0 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (t == 0 && 0 <= tagbuf_len) || ((t < tagbuf_len + 1 && 1 == cond) && 0 <= t) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((!(t == tagbuf_len) && 1 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((!(t == tagbuf_len) && 1 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((!(t == tagbuf_len) && 1 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((!(t == tagbuf_len) && 1 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((!(t == tagbuf_len) && 1 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((!(t == tagbuf_len) && 1 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: ((t < tagbuf_len + 1 && 1 == cond) && 1 <= tagbuf_len) && 0 <= t - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((!(t == tagbuf_len) && 1 == cond) && 0 <= t) && t <= tagbuf_len - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 229 SDtfs, 365 SDslu, 142 SDs, 0 SdLazy, 269 SolverSat, 265 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred 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, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 48 NumberOfFragments, 196 HoareAnnotationTreeSize, 16 FomulaSimplifications, 413 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FomulaSimplificationsInter, 241 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 5450 SizeOfPredicates, 7 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 0/12 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...