/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/test13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:17:52,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:17:52,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:17:52,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-23 06:17:53,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:17:53,092 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:17:53,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:17:53,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:17:53,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:17:53,095 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:17:53,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:17:53,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:17:53,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:17:53,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:17:53,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:17:53,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:17:53,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:17:53,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:17:53,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:17:53,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:17:53,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:17:53,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:17:53,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:17:53,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:17:53,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:17:53,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:17:53,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:17:53,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:17:53,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:17:53,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:17:53,100 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:17:53,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:17:53,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:17:53,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:17:53,638 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:17:53,639 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:17:53,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test13.c [2020-12-23 06:17:53,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/193739e23/97ba6951efbc4c68a8b8b6e91d359811/FLAG2cb5cd39e [2020-12-23 06:17:54,386 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:17:54,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/test13.c [2020-12-23 06:17:54,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/193739e23/97ba6951efbc4c68a8b8b6e91d359811/FLAG2cb5cd39e [2020-12-23 06:17:54,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/193739e23/97ba6951efbc4c68a8b8b6e91d359811 [2020-12-23 06:17:54,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:17:54,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:17:54,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:17:54,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:17:54,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:17:54,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:17:54" (1/1) ... [2020-12-23 06:17:54,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0acbe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:54, skipping insertion in model container [2020-12-23 06:17:54,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:17:54" (1/1) ... [2020-12-23 06:17:54,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:17:54,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 06:17:55,138 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/ldv-regression/test13.c[377,390] [2020-12-23 06:17:55,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:17:55,175 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 06:17:55,194 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/ldv-regression/test13.c[377,390] [2020-12-23 06:17:55,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:17:55,218 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:17:55,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55 WrapperNode [2020-12-23 06:17:55,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:17:55,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:17:55,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:17:55,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:17:55,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55" (1/1) ... [2020-12-23 06:17:55,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55" (1/1) ... [2020-12-23 06:17:55,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:17:55,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:17:55,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:17:55,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:17:55,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55" (1/1) ... [2020-12-23 06:17:55,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55" (1/1) ... [2020-12-23 06:17:55,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55" (1/1) ... [2020-12-23 06:17:55,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55" (1/1) ... [2020-12-23 06:17:55,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55" (1/1) ... [2020-12-23 06:17:55,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55" (1/1) ... [2020-12-23 06:17:55,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55" (1/1) ... [2020-12-23 06:17:55,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:17:55,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:17:55,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:17:55,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:17:55,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55" (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 [2020-12-23 06:17:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:17:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:17:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:17:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:17:55,826 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:17:55,826 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-23 06:17:55,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:55 BoogieIcfgContainer [2020-12-23 06:17:55,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:17:55,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:17:55,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:17:55,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:17:55,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:17:54" (1/3) ... [2020-12-23 06:17:55,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c884cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:17:55, skipping insertion in model container [2020-12-23 06:17:55,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:55" (2/3) ... [2020-12-23 06:17:55,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c884cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:17:55, skipping insertion in model container [2020-12-23 06:17:55,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:55" (3/3) ... [2020-12-23 06:17:55,840 INFO L111 eAbstractionObserver]: Analyzing ICFG test13.c [2020-12-23 06:17:55,852 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:17:55,859 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:17:55,886 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:17:55,939 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:17:55,940 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:17:55,940 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:17:55,940 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:17:55,940 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:17:55,941 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:17:55,941 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:17:55,941 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:17:55,984 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-23 06:17:55,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 06:17:55,995 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:17:55,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 06:17:55,997 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:17:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:17:56,005 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-12-23 06:17:56,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:17:56,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778381717] [2020-12-23 06:17:56,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:17:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:17:56,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:17:56,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778381717] [2020-12-23 06:17:56,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:17:56,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 06:17:56,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582126170] [2020-12-23 06:17:56,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 06:17:56,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:17:56,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 06:17:56,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 06:17:56,369 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-12-23 06:17:56,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:17:56,446 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-12-23 06:17:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 06:17:56,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-23 06:17:56,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:17:56,457 INFO L225 Difference]: With dead ends: 13 [2020-12-23 06:17:56,458 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 06:17:56,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 06:17:56,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 06:17:56,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 06:17:56,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 06:17:56,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 06:17:56,494 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-23 06:17:56,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:17:56,495 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 06:17:56,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 06:17:56,495 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 06:17:56,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 06:17:56,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:17:56,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-23 06:17:56,538 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-23 06:17:56,538 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-23 06:17:56,538 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-23 06:17:56,538 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-23 06:17:56,539 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-23 06:17:56,539 INFO L185 CegarLoopUtils]: At program point L21(lines 19 22) the Hoare annotation is: (and (= ULTIMATE.start_check_~a.base ULTIMATE.start_check_~b.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= ULTIMATE.start_check_~b.offset ULTIMATE.start_check_~a.offset)) [2020-12-23 06:17:56,539 INFO L185 CegarLoopUtils]: At program point L13(lines 6 14) the Hoare annotation is: (and (= ULTIMATE.start_check_~a.base ULTIMATE.start_check_~b.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= ULTIMATE.start_check_~b.offset ULTIMATE.start_check_~a.offset)) [2020-12-23 06:17:56,540 INFO L185 CegarLoopUtils]: At program point L8(lines 6 14) the Hoare annotation is: false [2020-12-23 06:17:56,540 INFO L189 CegarLoopUtils]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-12-23 06:17:56,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:17:56 BoogieIcfgContainer [2020-12-23 06:17:56,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:17:56,565 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:17:56,565 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:17:56,565 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:17:56,566 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:55" (3/4) ... [2020-12-23 06:17:56,570 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 06:17:56,583 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-23 06:17:56,583 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 06:17:56,584 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 06:17:56,584 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 06:17:56,626 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/test13.c-witness.graphml [2020-12-23 06:17:56,626 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:17:56,629 INFO L168 Benchmark]: Toolchain (without parser) took 1833.51 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 122.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:56,630 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 124.0 MB in the end (delta: 100.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:17:56,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.68 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 117.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:56,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.99 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:56,632 INFO L168 Benchmark]: Boogie Preprocessor took 42.03 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 114.8 MB in the end (delta: 871.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:56,633 INFO L168 Benchmark]: RCFGBuilder took 505.07 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 103.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:56,633 INFO L168 Benchmark]: TraceAbstraction took 733.33 ms. Allocated memory is still 151.0 MB. Free memory was 102.5 MB in the beginning and 124.8 MB in the end (delta: -22.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:17:56,634 INFO L168 Benchmark]: Witness Printer took 61.49 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 122.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:56,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 124.0 MB in the end (delta: 100.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 418.68 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 117.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.99 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.03 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 114.8 MB in the end (delta: 871.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 505.07 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 103.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 733.33 ms. Allocated memory is still 151.0 MB. Free memory was 102.5 MB in the beginning and 124.8 MB in the end (delta: -22.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 61.49 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 122.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 19]: Loop Invariant Derived loop invariant: ((a == b && pa == a) && pa == a) && b == a - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ((a == b && pa == a) && pa == a) && b == a - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 27 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 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...