/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/ldv-regression/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 03:52:42,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 03:52:42,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 03:52:42,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 03:52:42,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 03:52:42,995 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 03:52:42,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 03:52:42,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 03:52:43,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 03:52:43,000 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 03:52:43,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 03:52:43,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 03:52:43,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 03:52:43,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 03:52:43,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 03:52:43,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 03:52:43,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 03:52:43,002 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 03:52:43,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 03:52:43,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 03:52:43,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 03:52:43,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 03:52:43,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 03:52:43,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 03:52:43,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 03:52:43,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 03:52:43,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 03:52:43,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 03:52:43,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 03:52:43,007 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 03:52:43,007 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 03:52:43,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 03:52:43,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 03:52:43,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 03:52:43,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 03:52:43,591 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 03:52:43,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test21-1.c [2020-12-22 03:52:43,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b011cbef7/3ac7c8a674f247c69989a1c16a2e1b34/FLAGce681cda1 [2020-12-22 03:52:44,290 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 03:52:44,291 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test21-1.c [2020-12-22 03:52:44,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b011cbef7/3ac7c8a674f247c69989a1c16a2e1b34/FLAGce681cda1 [2020-12-22 03:52:44,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b011cbef7/3ac7c8a674f247c69989a1c16a2e1b34 [2020-12-22 03:52:44,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 03:52:44,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 03:52:44,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 03:52:44,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 03:52:44,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 03:52:44,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:52:44" (1/1) ... [2020-12-22 03:52:44,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b089fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44, skipping insertion in model container [2020-12-22 03:52:44,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:52:44" (1/1) ... [2020-12-22 03:52:44,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 03:52:44,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 03:52:44,914 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test21-1.c[892,905] [2020-12-22 03:52:44,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:52:44,937 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 03:52:44,961 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test21-1.c[892,905] [2020-12-22 03:52:44,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:52:44,984 INFO L208 MainTranslator]: Completed translation [2020-12-22 03:52:44,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44 WrapperNode [2020-12-22 03:52:44,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 03:52:44,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 03:52:44,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 03:52:44,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 03:52:45,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44" (1/1) ... [2020-12-22 03:52:45,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44" (1/1) ... [2020-12-22 03:52:45,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 03:52:45,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 03:52:45,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 03:52:45,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 03:52:45,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44" (1/1) ... [2020-12-22 03:52:45,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44" (1/1) ... [2020-12-22 03:52:45,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44" (1/1) ... [2020-12-22 03:52:45,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44" (1/1) ... [2020-12-22 03:52:45,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44" (1/1) ... [2020-12-22 03:52:45,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44" (1/1) ... [2020-12-22 03:52:45,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44" (1/1) ... [2020-12-22 03:52:45,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 03:52:45,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 03:52:45,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 03:52:45,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 03:52:45,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 03:52:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 03:52:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 03:52:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 03:52:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 03:52:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 03:52:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 03:52:45,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 03:52:45,694 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-22 03:52:45,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:52:45 BoogieIcfgContainer [2020-12-22 03:52:45,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 03:52:45,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 03:52:45,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 03:52:45,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 03:52:45,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:52:44" (1/3) ... [2020-12-22 03:52:45,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fb1c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:52:45, skipping insertion in model container [2020-12-22 03:52:45,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:44" (2/3) ... [2020-12-22 03:52:45,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fb1c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:52:45, skipping insertion in model container [2020-12-22 03:52:45,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:52:45" (3/3) ... [2020-12-22 03:52:45,708 INFO L111 eAbstractionObserver]: Analyzing ICFG test21-1.c [2020-12-22 03:52:45,718 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 03:52:45,725 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 03:52:45,750 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 03:52:45,786 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 03:52:45,786 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 03:52:45,786 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 03:52:45,787 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 03:52:45,787 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 03:52:45,790 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 03:52:45,790 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 03:52:45,791 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 03:52:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-12-22 03:52:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 03:52:45,838 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:52:45,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:52:45,840 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:52:45,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:52:45,848 INFO L82 PathProgramCache]: Analyzing trace with hash 167538580, now seen corresponding path program 1 times [2020-12-22 03:52:45,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:52:45,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801846075] [2020-12-22 03:52:45,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:52:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:52:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:52:46,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801846075] [2020-12-22 03:52:46,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 03:52:46,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 03:52:46,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568991400] [2020-12-22 03:52:46,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 03:52:46,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:52:46,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 03:52:46,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-22 03:52:46,254 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 10 states. [2020-12-22 03:52:46,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:52:46,687 INFO L93 Difference]: Finished difference Result 67 states and 69 transitions. [2020-12-22 03:52:46,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-22 03:52:46,689 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-12-22 03:52:46,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:52:46,698 INFO L225 Difference]: With dead ends: 67 [2020-12-22 03:52:46,699 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 03:52:46,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-12-22 03:52:46,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 03:52:46,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 03:52:46,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 03:52:46,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 03:52:46,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-22 03:52:46,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:52:46,747 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 03:52:46,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 03:52:46,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 03:52:46,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 03:52:46,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 03:52:46,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 03:52:46,784 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 03:52:46,785 INFO L185 CegarLoopUtils]: At program point L29(lines 27 30) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_check_#res|) (= ULTIMATE.start_main_~pd1~0.base ULTIMATE.start_main_~pd2~0.base) (= ULTIMATE.start_main_~pd2~0.offset ULTIMATE.start_main_~pd1~0.offset)) [2020-12-22 03:52:46,785 INFO L189 CegarLoopUtils]: For program point L13(lines 13 20) no Hoare annotation was computed. [2020-12-22 03:52:46,785 INFO L185 CegarLoopUtils]: At program point L38(lines 33 46) the Hoare annotation is: false [2020-12-22 03:52:46,786 INFO L189 CegarLoopUtils]: For program point L36(lines 36 40) no Hoare annotation was computed. [2020-12-22 03:52:46,786 INFO L189 CegarLoopUtils]: For program point L36-2(lines 36 40) no Hoare annotation was computed. [2020-12-22 03:52:46,786 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 03:52:46,786 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 03:52:46,786 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 03:52:46,787 INFO L189 CegarLoopUtils]: For program point L24(line 24) no Hoare annotation was computed. [2020-12-22 03:52:46,787 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2020-12-22 03:52:46,787 INFO L189 CegarLoopUtils]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-12-22 03:52:46,787 INFO L192 CegarLoopUtils]: At program point L24-3(lines 22 25) the Hoare annotation is: true [2020-12-22 03:52:46,787 INFO L189 CegarLoopUtils]: For program point L24-4(line 24) no Hoare annotation was computed. [2020-12-22 03:52:46,788 INFO L189 CegarLoopUtils]: For program point L24-6(line 24) no Hoare annotation was computed. [2020-12-22 03:52:46,788 INFO L192 CegarLoopUtils]: At program point L24-7(lines 22 25) the Hoare annotation is: true [2020-12-22 03:52:46,788 INFO L192 CegarLoopUtils]: At program point L45(lines 32 46) the Hoare annotation is: true [2020-12-22 03:52:46,788 INFO L189 CegarLoopUtils]: For program point L37(lines 37 39) no Hoare annotation was computed. [2020-12-22 03:52:46,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:52:46 BoogieIcfgContainer [2020-12-22 03:52:46,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 03:52:46,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 03:52:46,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 03:52:46,811 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 03:52:46,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:52:45" (3/4) ... [2020-12-22 03:52:46,817 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 03:52:46,831 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-22 03:52:46,832 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 03:52:46,832 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 03:52:46,833 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 03:52:46,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1 <= \result && pd1 == pd2) && pd2 == pd1 [2020-12-22 03:52:46,893 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/test21-1.c-witness.graphml [2020-12-22 03:52:46,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 03:52:46,896 INFO L168 Benchmark]: Toolchain (without parser) took 2228.36 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 124.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:46,897 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:52:46,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.80 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 117.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:46,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.39 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:46,899 INFO L168 Benchmark]: Boogie Preprocessor took 31.75 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:46,900 INFO L168 Benchmark]: RCFGBuilder took 623.88 ms. Allocated memory is still 151.0 MB. Free memory was 114.3 MB in the beginning and 132.1 MB in the end (delta: -17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:46,904 INFO L168 Benchmark]: TraceAbstraction took 1111.60 ms. Allocated memory is still 151.0 MB. Free memory was 131.5 MB in the beginning and 127.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:46,904 INFO L168 Benchmark]: Witness Printer took 82.82 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 124.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:52:46,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 313.80 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 117.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.39 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.75 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 623.88 ms. Allocated memory is still 151.0 MB. Free memory was 114.3 MB in the beginning and 132.1 MB in the end (delta: -17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1111.60 ms. Allocated memory is still 151.0 MB. Free memory was 131.5 MB in the beginning and 127.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 8.0 GB. * Witness Printer took 82.82 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 124.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (1 <= \result && pd1 == pd2) && pd2 == pd1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 72 SDslu, 77 SDs, 0 SdLazy, 102 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 20 NumberOfFragments, 14 HoareAnnotationTreeSize, 5 FomulaSimplifications, 55 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 624 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...